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  Subjects -> BIOLOGY (Total: 2995 journals)
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BIOLOGY (1424 journals)                  1 2 3 4 5 6 7 8 | Last

Showing 1 - 200 of 1720 Journals sorted alphabetically
AAPS Journal     Hybrid Journal   (Followers: 20)
Achievements in the Life Sciences     Open Access   (Followers: 4)
ACS Synthetic Biology     Full-text available via subscription   (Followers: 21)
Acta Biologica Colombiana     Open Access   (Followers: 7)
Acta Biologica Hungarica     Full-text available via subscription   (Followers: 4)
Acta Biologica Sibirica     Open Access  
Acta Biomaterialia     Hybrid Journal   (Followers: 25)
Acta Biotheoretica     Hybrid Journal   (Followers: 5)
Acta Chiropterologica     Full-text available via subscription   (Followers: 6)
acta ethologica     Hybrid Journal   (Followers: 4)
Acta Limnologica Brasiliensia     Open Access   (Followers: 3)
Acta Médica Costarricense     Open Access   (Followers: 2)
Acta Musei Silesiae, Scientiae Naturales : The Journal of Silesian Museum in Opava     Open Access  
Acta Neurobiologiae Experimentalis     Open Access  
Acta Parasitologica     Hybrid Journal   (Followers: 9)
Acta Scientiarum. Biological Sciences     Open Access   (Followers: 2)
Acta Scientifica Naturalis     Open Access   (Followers: 2)
Actualidades Biológicas     Open Access   (Followers: 1)
Advanced Health Care Technologies     Open Access   (Followers: 4)
Advances in Antiviral Drug Design     Full-text available via subscription   (Followers: 3)
Advances in Bioinformatics     Open Access   (Followers: 18)
Advances in Biological Regulation     Hybrid Journal   (Followers: 4)
Advances in Biosensors and Bioelectronics     Open Access   (Followers: 6)
Advances in Cell Biology     Open Access   (Followers: 24)
Advances in Cellular and Molecular Biology of Membranes and Organelles     Full-text available via subscription   (Followers: 12)
Advances in Developmental Biology     Full-text available via subscription   (Followers: 11)
Advances in DNA Sequence-Specific Agents     Full-text available via subscription   (Followers: 5)
Advances in Ecological Research     Full-text available via subscription   (Followers: 41)
Advances in Environmental Sciences - International Journal of the Bioflux Society     Open Access   (Followers: 20)
Advances in Enzyme Research     Open Access   (Followers: 9)
Advances in Experimental Biology     Full-text available via subscription   (Followers: 7)
Advances in Genome Biology     Full-text available via subscription   (Followers: 11)
Advances in High Energy Physics     Open Access   (Followers: 19)
Advances in Human Biology     Open Access   (Followers: 1)
Advances in Life Science and Technology     Open Access   (Followers: 14)
Advances in Life Sciences     Open Access   (Followers: 4)
Advances in Marine Biology     Full-text available via subscription   (Followers: 16)
Advances in Molecular and Cell Biology     Full-text available via subscription   (Followers: 22)
Advances in Planar Lipid Bilayers and Liposomes     Full-text available via subscription   (Followers: 3)
Advances in Regenerative Biology     Open Access   (Followers: 1)
Advances in Structural Biology     Full-text available via subscription   (Followers: 8)
Advances in Virus Research     Full-text available via subscription   (Followers: 5)
African Journal of Range & Forage Science     Hybrid Journal   (Followers: 6)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 1)
Ageing Research Reviews     Hybrid Journal   (Followers: 8)
Aging Cell     Open Access   (Followers: 10)
Agrokémia és Talajtan     Full-text available via subscription   (Followers: 2)
Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat     Open Access  
AJP Cell Physiology     Full-text available via subscription   (Followers: 13)
AJP Endocrinology and Metabolism     Full-text available via subscription   (Followers: 22)
AJP Lung Cellular and Molecular Physiology     Full-text available via subscription   (Followers: 3)
Al-Kauniyah : Jurnal Biologi     Open Access  
Alasbimn Journal     Open Access   (Followers: 1)
AMB Express     Open Access   (Followers: 1)
Ambix     Hybrid Journal   (Followers: 3)
American Biology Teacher     Full-text available via subscription   (Followers: 12)
American Fern Journal     Full-text available via subscription   (Followers: 1)
American Journal of Agricultural and Biological Sciences     Open Access   (Followers: 10)
American Journal of Bioethics     Hybrid Journal   (Followers: 10)
American Journal of Biostatistics     Open Access   (Followers: 9)
American Journal of Human Biology     Hybrid Journal   (Followers: 12)
American Journal of Medical and Biological Research     Open Access   (Followers: 5)
American Journal of Plant Sciences     Open Access   (Followers: 19)
American Journal of Primatology     Hybrid Journal   (Followers: 15)
American Malacological Bulletin     Full-text available via subscription   (Followers: 3)
American Naturalist     Full-text available via subscription   (Followers: 65)
Amphibia-Reptilia     Hybrid Journal   (Followers: 6)
Anaerobe     Hybrid Journal   (Followers: 4)
Analytical Methods     Full-text available via subscription   (Followers: 7)
Anatomical Science International     Hybrid Journal   (Followers: 2)
Animal Cells and Systems     Hybrid Journal   (Followers: 4)
Annales de Limnologie - International Journal of Limnology     Hybrid Journal   (Followers: 1)
Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale     Full-text available via subscription   (Followers: 3)
Annales Henri Poincaré     Hybrid Journal   (Followers: 3)
Annales UMCS, Biologia     Open Access   (Followers: 1)
Annals of Applied Biology     Hybrid Journal   (Followers: 8)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18)
Annals of Human Biology     Hybrid Journal   (Followers: 4)
Annual Review of Biomedical Engineering     Full-text available via subscription   (Followers: 17)
Annual Review of Biophysics     Full-text available via subscription   (Followers: 25)
Annual Review of Cancer Biology     Full-text available via subscription   (Followers: 1)
Annual Review of Cell and Developmental Biology     Full-text available via subscription   (Followers: 39)
Annual Review of Food Science and Technology     Full-text available via subscription   (Followers: 14)
Annual Review of Genomics and Human Genetics     Full-text available via subscription   (Followers: 19)
Annual Review of Phytopathology     Full-text available via subscription   (Followers: 10)
Anthropological Review     Open Access   (Followers: 25)
Anti-Infective Agents     Hybrid Journal   (Followers: 3)
Antibiotics     Open Access   (Followers: 9)
Antioxidants     Open Access   (Followers: 4)
Antioxidants & Redox Signaling     Hybrid Journal   (Followers: 8)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 5)
Anzeiger für Schädlingskunde     Hybrid Journal   (Followers: 1)
Apidologie     Hybrid Journal   (Followers: 4)
Apmis     Hybrid Journal   (Followers: 1)
APOPTOSIS     Hybrid Journal   (Followers: 8)
Applied Bionics and Biomechanics     Open Access   (Followers: 8)
Applied Vegetation Science     Full-text available via subscription   (Followers: 9)
Aquaculture Environment Interactions     Open Access   (Followers: 2)
Aquaculture International     Hybrid Journal   (Followers: 22)
Aquaculture Reports     Open Access   (Followers: 3)
Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society     Open Access   (Followers: 6)
Aquatic Biology     Open Access   (Followers: 4)
Aquatic Ecology     Hybrid Journal   (Followers: 30)
Aquatic Ecosystem Health & Management     Hybrid Journal   (Followers: 13)
Aquatic Science and Technology     Open Access   (Followers: 3)
Aquatic Toxicology     Hybrid Journal   (Followers: 19)
Archaea     Open Access   (Followers: 3)
Archiv für Molluskenkunde: International Journal of Malacology     Full-text available via subscription   (Followers: 3)
Archives of Biomedical Sciences     Open Access   (Followers: 7)
Archives of Microbiology     Hybrid Journal   (Followers: 8)
Archives of Natural History     Hybrid Journal   (Followers: 7)
Archives of Oral Biology     Hybrid Journal   (Followers: 2)
Archives of Virology     Hybrid Journal   (Followers: 5)
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2)
Arid Ecosystems     Hybrid Journal   (Followers: 3)
Arquivos do Instituto Biológico     Open Access   (Followers: 1)
Arquivos do Museu Dinâmico Interdisciplinar     Open Access  
Arthropod Structure & Development     Hybrid Journal   (Followers: 2)
Arthropods     Open Access   (Followers: 1)
Artificial DNA: PNA & XNA     Hybrid Journal   (Followers: 2)
Artificial Photosynthesis     Open Access   (Followers: 1)
Asian Bioethics Review     Full-text available via subscription   (Followers: 1)
Asian Journal of Biodiversity     Open Access   (Followers: 5)
Asian Journal of Biological Sciences     Open Access   (Followers: 3)
Asian Journal of Cell Biology     Open Access   (Followers: 5)
Asian Journal of Developmental Biology     Open Access   (Followers: 2)
Asian Journal of Medical and Biological Research     Open Access   (Followers: 2)
Asian Journal of Nematology     Open Access   (Followers: 3)
Asian Journal of Poultry Science     Open Access   (Followers: 4)
Australian Life Scientist     Full-text available via subscription   (Followers: 2)
Australian Mammalogy     Hybrid Journal   (Followers: 5)
Autophagy     Hybrid Journal   (Followers: 2)
Avian Biology Research     Full-text available via subscription   (Followers: 4)
Avian Conservation and Ecology     Open Access   (Followers: 11)
Bacteriology Journal     Open Access   (Followers: 2)
Bacteriophage     Full-text available via subscription   (Followers: 3)
Bangladesh Journal of Bioethics     Open Access  
Bangladesh Journal of Plant Taxonomy     Open Access  
Bangladesh Journal of Scientific Research     Open Access   (Followers: 1)
Berita Biologi     Open Access   (Followers: 1)
Between the Species     Open Access   (Followers: 1)
Bio Tribune Magazine     Hybrid Journal  
BIO Web of Conferences     Open Access  
BIO-Complexity     Open Access  
Bio-Grafía. Escritos sobre la Biología y su enseñanza     Open Access  
Bioanalytical Reviews     Hybrid Journal   (Followers: 2)
Biocatalysis and Biotransformation     Hybrid Journal   (Followers: 6)
Biochemistry and Cell Biology     Hybrid Journal   (Followers: 14)
Biochimie     Hybrid Journal   (Followers: 7)
BioControl     Hybrid Journal   (Followers: 5)
Biocontrol Science and Technology     Hybrid Journal   (Followers: 5)
Biodemography and Social Biology     Hybrid Journal   (Followers: 1)
Biodiversidad Colombia     Open Access  
Biodiversity : Research and Conservation     Open Access   (Followers: 26)
Biodiversity and Natural History     Open Access   (Followers: 5)
Biodiversity Data Journal     Open Access   (Followers: 3)
Biodiversity Informatics     Open Access  
Bioedukasi : Jurnal Pendidikan Biologi FKIP UM Metro     Open Access  
Bioeksperimen : Jurnal Penelitian Biologi     Open Access  
Bioelectrochemistry     Hybrid Journal   (Followers: 2)
Bioelectromagnetics     Hybrid Journal   (Followers: 1)
Bioenergy Research     Hybrid Journal   (Followers: 2)
Bioengineering and Bioscience     Open Access   (Followers: 1)
BioEssays     Hybrid Journal   (Followers: 10)
Bioethics     Hybrid Journal   (Followers: 14)
BioéthiqueOnline     Open Access  
Biofabrication     Hybrid Journal   (Followers: 3)
Biogeosciences (BG)     Open Access   (Followers: 10)
Biogeosciences Discussions (BGD)     Open Access   (Followers: 1)
Bioinformatics     Hybrid Journal   (Followers: 246)
Bioinformatics and Biology Insights     Open Access   (Followers: 15)
Bioinspiration & Biomimetics     Hybrid Journal   (Followers: 6)
Biointerphases     Open Access   (Followers: 1)
Biojournal of Science and Technology     Open Access  
Biologia     Hybrid Journal  
Biologia on-line : Revista de divulgació de la Facultat de Biologia     Open Access  
Biological Bulletin     Partially Free   (Followers: 4)
Biological Control     Hybrid Journal   (Followers: 5)
Biological Invasions     Hybrid Journal   (Followers: 16)
Biological Journal of the Linnean Society     Hybrid Journal   (Followers: 15)
Biological Letters     Open Access   (Followers: 4)
Biological Procedures Online     Open Access  
Biological Psychiatry     Hybrid Journal   (Followers: 42)
Biological Psychology     Hybrid Journal   (Followers: 6)
Biological Research     Open Access  
Biological Rhythm Research     Hybrid Journal   (Followers: 2)
Biological Theory     Hybrid Journal   (Followers: 1)
Biological Trace Element Research     Hybrid Journal  
Biologicals     Full-text available via subscription   (Followers: 9)
Biologics: Targets & Therapy     Open Access   (Followers: 1)
Biologie Aujourd'hui     Full-text available via subscription  
Biologie in Unserer Zeit (Biuz)     Hybrid Journal   (Followers: 42)
Biologija     Open Access  
Biology     Open Access   (Followers: 5)
Biology and Philosophy     Hybrid Journal   (Followers: 16)
Biology Bulletin     Hybrid Journal   (Followers: 1)
Biology Bulletin Reviews     Hybrid Journal  
Biology Direct     Open Access   (Followers: 7)
Biology Letters     Full-text available via subscription   (Followers: 35)
Biology Methods and Protocols     Hybrid Journal  

        1 2 3 4 5 6 7 8 | Last

Journal Cover Advances in Life Sciences
  [4 followers]  Follow
    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 2163-1387 - ISSN (Online) 2163-1395
   Published by SAP Homepage  [105 journals]
  • Oxidative Stress and Preeclampsia

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  R. Negi,D. Pande,K. Karki,R. S. Khanna,H. D. KhannaEclampsia is one of the most common pregnancy complications causing high mortality and morbidity for both mother and foetus. Low birth weight and pre-maturity are very common features. Pre-eclampsia is associated with oxidative stress in the maternal circulation. The etiology and pathogenesis of the pregnancy syndrome preeclampsia remain poorly understood. There is substantial evidence to suggest that the diverse manifestations of preeclampsia, including altered vascular reactivity, vasospasm, and discrete pathology in many organ systems, are derived from pathologic changes within the maternal vascular endothelium. The imbalance between oxidative damage and antioxidant defences in pre-eclampsia leads to endothelial cell dysfunction. Endothelial cell dysfunction appears to be a central feature in the patho-physiology of pre-eclampsia.
      PubDate: 10/17/2012 17:10:10
       
  • OlfactionDB: A Database of Olfactory Receptors and Their Ligands

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  D. Modena,M. Trentini,M. Corsini,A. Bombaci,A. GiorgettiOdorants are volatile molecules that efficiently carry chemical information, providing one of the main ways for communicating with the environment in all kingdoms of life. In the other hand, mammalian genomes codify for hundreds of olfactory receptors (ORs), e.g. about 400 in human and more than 1000 in mouse, underlying the crucial role of the sense of smell during evolution. Therefore, the olfactory system is capable to discriminate between ~10,000 different odors. The possibility of collecting and compiling information about odorants and their receptors is thus fundamental for a functional characterization of the signaling firing event. OlfactionDB, a manually curated database providing comprehensive information for nearly 400 odorant-receptor interactions at the current state, has been developed for managing information about odorants and their receptors. OlfactionDB is a free publicly database available online from: http://molsim.sci.univr.it/OlfactionDB
      PubDate: 10/17/2012 17:10:10
       
  • Molecular Detection of Theileria Annulata in Egyptian Buffaloes and
           Biochemical Changes Associated with Particular Oxidative Changes

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  A. E. F. Ali,M. E. I. RadwanThis investigation is performed on 100 buffaloes native Breed in Kaliobia governorate Egypt aged from 1-3years, these animals suffered from fever (41°C) enlargement lymph node, inappetence, pale mucous membrane, increase lacrimation, emaciation and corneal opacity in progressive stages when these animals were subjected to microscopic examination the degree of parasitaema was recorded as the percentage of infected red blood cells in 1000red blood cell counted .We report the detection of Theileria annulata by PCR in blood samples obtained from buffaloes supposed to be infected. The assay employs primers specific for the gene encoding Theileria annulata 185RNA biochemical changes associated with Theileria annulata in these buffaloes particular emphasis to the oxidative stress the reduce TAC level may reflect adecrease in antioxidant capacity . Blood collected from all animals on EDTA to microscopic examination and PCR to determine type of Theileria.
      PubDate: 10/17/2012 17:10:10
       
  • Tale of Fish Sperm and Factors Affecting Sperm Motility: A Review

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  M. Sadiqul Islam,T. AkhterMotility is an important function of the male gamete, which allows sperm to actively reach and penetrate the female gamete in organisms with internal and external fertilization. Sexual activity of some fish is generally seasonal and fertilization is external. Sperm, once differentiated in the gonad, remain there completely quiescent until they are released into the external medium, which is either freshwater or sea water. Various parameters such as ion concentrations (K+, Na+, Ca2+), osmotic pressure, pH, and temperature affect motility. In the present paper, we review the roles of these factors on sperm motility in the teleosts. Studying the effects of these factors on teleost sperm can help establish good activation and/or immobilizing media for improving either artificial fertilization or cryopreservation.
      PubDate: 10/17/2012 17:10:10
       
  • Binary Combination of Different Breeds of Freeze-Dried Cow Urine (FCU)
           with Some Plant Molluscicides against Lymnaea acuminata: Vector of
           Fasciolosis

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Shiv Kumar,D. K. Singh,Vinay Kumar SinghMolluscicidal activity of binary combination of different breeds of freeze-dried cow urine (FCU) such as Sahiwal, Geer and Tharparkar with plant molluscicides viz Annona squamosa seed powder, Azadirachta indica oil, Ferula asafoetida root latex and Camellia sinensis against harmful snail Lymnaea acuminata have been studied. It was observed that the toxicity of binary combination (1:1) of plant molluscicides and different breeds of freeze-dried cow urine (FCU) kept for 15 days in sunlight (8h/day) and laboratory condition were toxic against L. acuminata. Among all combinations, the toxicity of Sahiwal freeze-dried cow urine + A. squamosa (24h LC50 -97.27mg/l and 96h LC50 -36.19mg/l) kept for 15 days in sunlight (8h/day) was higher than the Geer and Tharparkar freeze-dried cow urine. Toxicity of laboratory condition of Sahiwal freeze-dried cow urine + A. squamosa (24h LC50 -81.40mg/l and 96h LC50 -34.30mg/l) was more toxic than other binary combination of cow breeds and plants molluscicides. The different breeds of cow urine under the 15 days sunlight (8h/day) and laboratory conditions freeze-dried with different plant molluscicides are potent molluscicides.
      PubDate: 10/17/2012 17:10:10
       
  • Origin of Order: Emergence and Evolution of Biological Organization as a
           Problem in Thermal Physics

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Fouad El-DiastyAccording to a mechanistic and naturalistic view of the origin of life, the reality is evolution — a single process of self-transformation started from a primordial chaotic or random state of matter reaching to modifications through natural selection. The simplest form of life requires thousands of different kinds of molecules, to produce very complex protein DNA and RNA molecules subunits arranged in a precise sequence. Chemical and physical processes acted for many hundreds of millions of years, before true cellular life was brought into being. Biological evolution was able to create complex, harmonic, and very effective biocybernetic control systems governing the DNA behavior and the evolution of animal cognition abilities. But the present postulates on the origin of life do not satisfy the criteria of a scientific immensity theory, where all related laboratory experiments are mere exercises in organic chemistry. The immensity of the problem is appreciated by physics through applying the thermodynamics laws which are indeed universal. The catalysts in biological systems are coded in the genes of the DNA, so is a fourth law needed for thermodynamics about the self-organizing phenomena observed in biology' Can the physics-based theories robustly address phenomena of emergence and evolution without having recourse to the type of vitalism that was in the beginning of the twentieth century' Is the origin of life beclouded because we don't know enough about thermodynamics' Why this should be called a scientific attitude when all the scientific evidences continue to support special creation, or indeed an omnipotent Creator'
      PubDate: 10/17/2012 17:10:10
       
  • Optical Coherence-domain Imaging of Subcutaneous Human Blood Vessels in
           vivo

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Sergey G. ProskurinExperimental methods of Optical Coherence Tomography (OCT) are applied for two-dimensional mapping of subcutaneous human blood vessels. Structural images of in vivo human finger and human palm macro vessels (0.2-1.0 mm) before and after optical clearing using the modified low power rapid scanning optical delay line are presented. Images are scanned with 12 µm minimum spatial resolution. The described modifications enable to apply low power (0.4-0.5 mW), low noise broadband near infrared light source and to obtain structural images with detection of not only reflected but also multiply scattered coherence-gated photons. The achieved transcutaneous probing depth is about 1.6-1.8 mm
      PubDate: 10/17/2012 17:10:10
       
  • Influence of Plant Spacing and Weeds on Growth and Yield of Peanut
           (Arachis hypogaea L) in Rain-fed of Sudan

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Ahmed M. El Naim,Mona A. Eldouma,Elshiekh A. Ibrahim,Moayad M. B. ZaiedA field experiment was conducted for two consecutive seasons to assess the impact of four plant spacing (10, 20, 30 and 40 cm) and three weeding levels (no weeding, weeding once (at two weeks from sowing) and weeding twice (at two weeks and at four weeks) on growth and yield of peanut (groundnut) in rain-fed under Kordofan (Sudan) conditions. A randomized complete block design in four replications was used. The results showed that plant spacing of 10 cm gave 40% more yield than that at 40 cm and was the best for maximizing yield under rain-fed conditions. The growth and yield attributes of groundnut were significantly reduced when the crop was left un weeded. Weeding twice had the highest number of pods per plant, 100- Kernel weight, pods yield per plant and final pod yield (t/h). Weeds reduced pod yield by about 40%. The field was dominated by Cenchrus biflours L
      PubDate: 10/17/2012 17:10:10
       
  • Production of Protease and Amylase from Bacillus subtilis and Aspergillus
           niger Using Parkia biglobossa (Africa Locust Beans) as Substrate in Solid
           State Fermentation

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Oyeleke S. B.,Oyewole O. A.,Egwim E.C.Bacillus subtilis and Aspergillus niger were utilized for the production of amylase and protease enzymes in this study. Parkia biglobossa (Africa Locust Beans) shell was used as substrate by both organisms for the production of amylase and protease enzyme. The optimum temperature for the activity of amylase and protease enzymes produced by Bacillus subtilis was 50oC, while 30oC and 40oC was recorded for amylase and protease enzyme produced by Aspergillus niger with an activity of 1.1 mg/ml/sec, 0.8 mg/ml/sec for amylase and protease enzyme by Bacillus subtilis and 0.87 mg/ml/sec, 0.77 mg/ml/sec for amylase and protease produced by Aspergillus niger respectively. Optimum pH was attained at pH 9 for amylase and protease enzyme produced by Bacillus subtilis with an activity of 1.2 mg/ml/sec and 0.83 mg/ml/sec respectively. The optimum pH for the activity of Aspergillus niger was recorded at pH 5 and pH 6 for amylase and protease with an activity of 0.87 mg/ml/sec and 0.74mg/ml/sec respectively. The result showed that both organisms utilized Parkia biglobossa to produce extracellular amylase and protease, but the activity of amylase enzyme produced by both organisms was greater than the activity of protease enzyme and enzymes produced by Bacillus subtilis showed superior activity which can be useful industrially
      PubDate: 10/17/2012 17:10:10
       
  • Population Dynamics of Aphis Spiraecola Patch (Homoptera: Aphididae) on
           Medicinal Plant Cosmos Bipinnatus in Eastern Uttar Pradesh, India

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Shweta Dubey,Vinay Kumar SinghSeasonal history of green citrus aphid Aphis spiraecola Patch was studied in terai belt of eastern Uttar Pradesh, India during three consecutive years, 2006, 2007 and 2008. The green citrus aphid appears during the first week of November on Cosmos bipinnatus and attains a peak during third week of December during 2006-2007. Cause of increase in the population during first half of the November in the field seems due to healthy plants, favourable temperature (around 25ºC) and humidity (above 40% RH) and less predatorism/parasitism. Decrease in population after the peak population may be attributed to low humidity (less than 50% RH) and predatorism/parasitism along with maturity of the crop. Since its population attains single high peak during the crop season, its population can easily be regulated by using any eco-friendly management practice by enhancing the activities of predators (particularly ladybird beetles) as they come along with the aphid.
      PubDate: 10/17/2012 17:10:10
       
  • Determination of Suitable Variety and Plants per Stand of Cowpea (Vigna
           Unguiculata L.Walp) in the Sandy Soil, Sudan

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Ahmed M. El Naim,Abdelrhim A. Jabereldar,Salaheldeen E. Ahmed,Feisal M. Ismaeil,Elshiekh A. IbrahimThe study was conducted to determine the effects of four different numbers of plants per stand on the performance of three cowpea varieties under rain-fed conditions. A field experiment was conducted for two successive rainy seasons (2007/08-2008/09) in sandy soil of North Kordofan State, Sudan. The three varieties of cowpea (BLedi, an old local cultivar and two recently improved cultivars, Haydoob and Eien Elgazal) were sown in four patterns (one, two, three and four plants per stand). The experiment was laid out in a randomized complete block design (RCBD) in four replications. The results showed that, plants/stand had a significant effect on most of the attributes measured. Increased plants/stand significantly increased grain yield per unit area and reduced the number of pods per plant, 100-grain weight, grain yield per plant and harvest index. The local cultivar was late in maturity and had heavier 100-grain weight, greater grain yield per plant, greater final grain yield (t/ha). The Ein Elgazal was earlier in maturity and scored the highest values of harvest index.
      PubDate: 10/17/2012 17:10:10
       
  • Remedial Use of Withanolides from Withania Coagolans (Stocks) Dunal

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Maryam Khodaei,Mehrana Jafari,Mitra NooriWithanolides are a branch of alkaloids, which reported many remedial uses. Withanolides mainly exist in 58 species of solanaceous plants which belong to 22 generous. In this review, the phyochemistry, structure and synthesis of withanolieds are described. Withania coagulans Dunal belonging to the family Solanaceae is a small bush which is widely spread in south Asia. In this paper the biological activities of withanolieds from Withania coagulans described. Anti-inflammatory effect, anti cancer and alzheimer’s disease and their mechanisms, antihyperglycaemic, hypercholesterolemic, antifungal, antibacterial, cardiovascular effects and another activity are defined. This review described 76 compounds and structures of Withania coagulans.
      PubDate: 10/17/2012 17:10:10
       
  • Occurrence of Sclerotinia Foliage Blight Disease of Cucumber and Pepper
           Plants under Protected Cultivation System in Egypt I. Chemical and
           Biological Control Measures in Vitro

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Nehal S. El-Mougy,E. I Embaby,S. M. Lashin,M. M. Abdel-KaderDuring the winter season 2011, a sever Sclerotinia blight disease symptoms were observed on cucumber and Pepper plants grown in the Protected Cultivation Station, Ministry of Agriculture located at Tookh province, Qalubiya governorate, Egypt. Surveyed plastic houses at the previous location revealed that the recorded Sclerotinia blight disease incidence was 2.8 and 3.3% for cucumber and pepper plants, respectively. The isolated causal pathogens for cucumber and pepper foliage blights were identified as Sclerotinia sclerotiorum (Lib.) de Bary and S. minor Jagger, respectively. This is thought to be the first report of these fungi to cause foliage blights on cucumber and pepper in Egypt. As control measures antagonistic agents and fungicides against the growth both pathogenic fungi under in vitro conditions were evaluated. The obtained results showed complete growth inhibition was recorded for both S. sclerotiorum and S. minor at 100ppm of Topsin-M and Ridomil Gold, while Rizolex-T gave the same effect at 200ppm. The fungicide, Previcure had inhibitor effect on the mycelia growth of both fungi only at the high concentration 800ppm. Moreover, the antagonistic fungi (Trichoderma spp.) showed superior inhibitory effect against the growth of pathogenic fungi compared with bacterial isolates (B. subtilis & P. florescence). No significant differences between the tested antagonistic microorganisms and commercial biocides were observed.
      PubDate: 10/17/2012 17:10:10
       
  • Activities of Alpha Amylase in Serum and Saliva of Some Nigerian Cigarette
           Smokers

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Onyesom I,Osioma E,Ifie E. J,Oweh O. T.This study reports the effect of cigarette smoking on serum and salivary -amylase activities of some consenting Nigerian male smokers (20) in apparent good health and between 30 to 70 years. Age and sex-matched non-smokers (20) were included as control subjects. Alpha amylase activity was assayed using standard colorimetric method. Results obtained show that the mean -amylase activity in serum and saliva were significantly higher (P
      PubDate: 10/17/2012 17:10:10
       
  • Optimization of Laccase Production from Penicillium martensii NRC 345

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  A. M. Elshafei,M. M. Hassan,B. M. Haroun,M. A. Elsayed,A. M. OthmanLaccase production by Penicillium martensii NRC 345 was optimized. Eight media with different components were screened. The enzyme formed by P. martensii NRC 345 was detected mainly exocellularly under shake culture condition. Laccase formation reaches its maximum value with specific activities of about 7.18 U/mg protein at the twenty-sixth day of incubation at pH 5.5 and 30°C. Galactose (5 g/l) and sodium nitrate (0.2 g/l) were found to be the best carbon and nitrogen sources for laccase formation, respectively. Replacement of galactose instead of glucose at the same concentration increased laccase production by about more than ten-fold. Among the various wastes used wheat bran induces the highest laccase production with specific activity of 39.52 U/mg protein. Tween-80 and CuSO4.5H2O, were also tested for laccase induction.
      PubDate: 10/17/2012 17:10:10
       
  • Phytochemical Potential of Annona reticulata Roots for Antiproliferative
           Activity on Human Cancer Cell Lines

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  H M Suresh,B Shivakumar,S I Shivakumar Phytochemical and pharmacological activities of Annona reticulata components suggest a wide range of clinical application in lieu of cancer therapy. Present study includes investigation of bioactive constituents from roots of Annona reticulata for cytotoxic properties against different cancer cell lines. Three aporphine alkaloids liriodenine (AAR-01), norushinsunine (AAR-02), reticuline (AAR-03) and one acetogenin neoannonin (TAR -01) isolated from the roots of Annona reticulata. The structures of the compounds were achieved by1HNMR, 13CNMR and Mass spectroscopic methods. All the isolated compounds subjected for cytotoxicity evaluation against A-549, K- 562, HeLa, MDA-MB cancer cell lines and normal cell lines (Vero cells) by MTT assay. All the isolated compounds exhibited prominent dose-dependent cytotoxicity against all the cancer cell lines at dilutions 5, 10 and 20 μg/ml, whereas TAR -01 showed strong cytotoxicity against cancer cell lines with IC50 values ranging from5.8 – 6.9µg/ml. Simultaneously, the effect of all the isolated compounds against Vero cell lines was lower in comparison with the cancer cell lines. The better cytotoxicity of all the isolated compounds the appearance of hydroxyl group at C-7 in AAR-02 could be favourable for increased cytotoxicity against cancer cell lines among aporphine alkaloids and the presence of two hydroxyl groups adjacent to the tetrahydrofuran ring in TAR-01 may be responsible for enhanced activity. The lower cytotoxicity against Vero cell line seems that the isolated constituents AAR-01, AAR-02, AAR-03 and TAR -01 may be used as chemopreventive agents in cancer therapy.
      PubDate: 10/17/2012 17:10:10
       
  • Antibacterial Activities of Azadirachta Indica against Some
           Bacterial Pathogens

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Abalaka M.,Oyewole O. A.,Kolawole A. R.The antibacterial effect of Azadirachta indica against Pseudomonas aeruginosa, Klebsiella ozanae, Staphylococcus aureus and Escherichia coli was determined using the agar cup plate technique. The phytochemical components of A. indica showed the presence of saponin and phlobatanin and the absence of alkaloids, tannins, phenolics, glycosides, flavonoids and triterpenes. The result showed that the test organisms were susceptible to 500mg/ml, 50mg/ml and 5mg/ml of the plant extract. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were determined. The result showed that the MIC and MBC were 5mg and 50mg respectively for Pseudomonas aeruginosa, Kl. ozanae, Staphylococcus aureus and Escherichia coli. The result of the study suggests that extracts of A. indica could be suitable for the treatment of various infections caused by P. aeruginosa, K. ozanae, S. aureus and E. coli.
      PubDate: 10/17/2012 17:10:10
       
  • DNA Fingnerprinting of Eight Cyprinid Fish Species of Iraqi Inland Waters
           Using RAPD-PCR Technique

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Mustafa Sami Faddagh,Najah A. Hussain,Adnan Issa Al-BadranOne hundred and twenty specimens of eight cyprinid fish species included Barbus xanthopterus, B. kersin, B. barbulus, B. grypus, B. sharpeyi, B. luteus, Aspius vorax and Cyprinus carpio were collected from Shatt Al-Arab River in governorate of Basrah Southern of Iraq. The DNA fingerprints were identified using RAPD-PCR technique with seven decamere primers. A total of 223 anonymous scorable bands obtained by RAPD-PCR technique across eight cyprinid species genomes. The average of bands per primer was 32 bands, the size of bands estimated using the linear equation of standard curve plot of standard 100 bp ladder. The RAPD markers were used to obtain the similarity indices that were in high value among Barbus species since it ranged from 84.4% between B. xanthopterus and B. kersin to 52% between B. barbulus and B. sharpeyi. While the B. grypus appeared in high similarity indices value (86.9%) with luciscin A. vorax. While C. carpio exhibit high diversity indices value with the Barbus spp.. Therefore the phylogenetic relationships among the eight studied cyprinid species were clearly resolved in dendrograms, they clustered into three branches: the first one included B. xanthopterus, B. kersin, B, barbulus, while the second included B. sharpeyi and B. luteus and the third branch contained B. grypus and A. vorax. Nevertheless, when A. vorax data discarded, the B. grypus return to cluster with B. sharpeyi and B. luteus. Whereas C. carpio functioned as outgroup in both cases. The conclusion of the present study was: molecular patterns showed by RAPD bands represent specific DNA fingerprints and apparently are suitable tool to distinguish among cyprinids. The results clearly revealed that the eight cyprinid taxa are distinctive species. The studied Barbus species are divided into two groups, the first one included B. xanthopterus, B. kersin and B. barbulus which have European Luciobarbus affinities and the second contained B. grypus, B. sharpeyi and B. luteus which they diverged of Luciobarbus but still related to Barbus. So, the Barbus in Iraq is polyphyletic group.
      PubDate: 10/17/2012 17:10:10
       
  • Biological Properties of Thuja Orientalis Linn

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  P. Kumar,D. K. Singh,V. K. Singh,Priya SrivastavaThuja orientalis (Commonly- Morpankhi, Family- Cupressaceae) is an evergreen, monoecious trees or shrubs used in various forms of traditional medicines and homeopathy in various ways. In traditional practices Thuja is used for treatment of bronchial catarrh, enuresis, cystitis, psoriasis, uterine carcinomas, amenorrhea and rheumatism. Recent researches in different parts of the world have shown that T. orientalis and its active component thujone have the great potential against a various health problems. T. orientalis preparations can be efficiently used against microbial/worm infection. It can be used as antioxidant, anticancer and anti-inflammatory agent. Instead of these effects, it can be also used as insecticidal, molluscicidal and nematicidal activity against different pests. The present review highlights the some important biological properties of T. orientalis.
      PubDate: 10/17/2012 17:10:10
       
  • Genotoxic and Antigenotoxic Properties of Calendula o fficinalis Extracts
           in Mice Treated with Methyl Methanesulfonate

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Daniela Dimer Leffa,Raquel da Rosa,Bruna Pazini Munhoz,Andréia de Araújo Martins Mello,Fernanda Dagostim Mandelli,Patrícia de Aguiar Amaral,Ângela Erna Rossatto,Vanessa Moraes de AndradeCalendula officinalis L. (Asteraceae) is used in the traditional medicine for centuries to treat several diseases. The aim of the present study was to investigate in vivo the genotoxicity/mutagenicity and antigenotoxicity/antimutagenicity potential of the Calendula officinalis L. The CF-1 male mice were treated with ethanolic (250 or 500 mg/Kg) or aqueous (90 mg/Kg) extracts of C. officinalis for 2 weeks prior to treatment with saline or methyl methanesulfonate. No genotoxic or mutagenic effect was observed at the doses of ethanolic and aqueous extracts of C. officinalis in blood and bone marrow samples from animals after 2 weeks of treatment, analyzed by the Comet assay and Micronucleus test, respectively. In addition, ethanolic extracts in both doses (250 or 500 mg/Kg) and aqueous extracts (90 mg/Kg) of this plant showed an antigenotoxic effect by Comet assay, repairing the DNA damage caused by MMS. At the Micronucleus test only aqueous extract of C. officinalis revealed a protector effect to genetic material. These results suggest that all the extracts of C. officinalis contained protective substances that decreasing damage to genetic material. Despite this protective or antigenotoxic effect from this plant, it should be used with caution by the population.
      PubDate: 10/17/2012 17:10:10
       
  • Toxicity and Fate of Heavy Metals with Particular Reference to Developing
           Foetus

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Anju Agrawal Heavy metals especially lead, mercury, cadmium, arsenic and chromium are well known for causing birth defects. Although, the mother may be unaffected and unaware of the contamination, infants exposed to such agents in-utero may have a number of side effects as these substances readily move across the placental barrier. Heavy metals are dangerous because they have the tendency to bioaccumulate in biological organisms over a period of time. The foetus and newborns are much more sensitive to the effects at low levels of metal exposure and this is mainly due to body weight being less and higher rate of food consumption rate, higher gastrointestinal absorption rate, less effective renal excretion, and a less effective blood-brain barrier. On the other hand, lead is tightly bound to red blood cells, thereby enhancing the transfer from maternal circulation through the placenta to the foetus. Placental transfer begins as early as the twelfth week of gestation. Arsenic is found in drinking water and is a potent toxicant but scanty research has been done on its effect on maternal health. Chromium (Cr6+) accumulates in placenta and impairs foetal development in the placenta. Therefore, the fertile population should prevent themselves from exposure to chemicals, drugs and other environmental agents.
      PubDate: 10/17/2012 17:10:10
       
  • Alpinia Nigra (Family Zingiberaceae): An Anthelmintic Medicinal
           Plant of North-East India

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Bishnupada Roy,Ananta Swargiary,Bikash Ranjan GiriTraditionally used medicinal plants have been a source of relief in the control of different types of diseases throughout the globe. Economically backward people, who resides in remote areas of developing countries, rely heavily on indigenous way of get rid of parasitic infections using folk medicine. Alpinia nigra is one such medicinal plant, widely used in different parts of North-East India to cure intestinal helminth infection. Essential oils of different species of Alpinia contain flavonoids, terpenoids and kavalactones which have been in used to cure inflammation, hypertension, bacterial and helminth infection. In this review, the crude alcoholic extract of A. nigra that causes destruction and degeneration of surface architecture of tegument, inhibit energy metabolism related enzymes and also enzyme responsible for neuromuscular co-ordination are discussed.
      PubDate: 10/17/2012 17:10:10
       
  • Sub-cytotoxic Concentration of AflatoxinB2 Prevents NO-Mediated Increased
           Mitochondrial Membrane Potential and Intracellular Killing of Candida
           albicans in MacrophagesRunning Title: Changes of Nitric Oxide and
           Mitochondrial Membrane Potential by Af

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Dilip Chatterjee,Pratiti GhoshAflatoxin B2 (AFB2) is a carcinogenic and immunotoxic metabolite produced by Aspergillus flavus growing on crops and food. The immune functions of rat macrophages when exposed to sub-cytotoxic concentrations of AFB2 which may make exposed people susceptible to Candida albicans infections, have been assessed. This level of AFB2 significantly prevents immune functions of macrophages by inhibiting nitric oxide (NO) production, mitochondrial membrane potential and intracellular killing of C.albicans by macrophages even in the presence of activating signal, interferon-γ. AFB2-induced prevention of increased membrane potential and intracellular killing of C.albicans by macrophages may be due to the prevention of iNOS (inducible nitric oxide synthetase) activity which results in the suppression of NO production. This study provides an important clue to the possibility that macrophages may give refuge to C.albicans for survival and dissemination and thus C.albicans is capable of inducing self-protective effect by the action of AFB2. The presence of AFB2 would thus help the macrophages to allow the C.albicans to replicate and persist, while being invisible to the immune system. This plausibility will give impetus to medicinal development.
      PubDate: 10/17/2012 17:10:10
       
  • Application of Fungicides Alternatives as Seed Treatment for Controlling
           Root Rot of Some Vegetables in Pot Experiments

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  M. D.E. Aly,N. S. El-Mougy,M. M. Abdel-Kader,S. M. LashinDifferent root rot fungi, Alternaria solani Fusarium solani, F. oxysporum, Rhizoctonia solani, Sclerotium rolfsii, Macrophomina phaseolina and Pythium sp. were isolated from various vegetables, i.e. Cucumber, Cantaloupe, Tomato and Pepper grown in plastic houses under protected cultivation system and showing root rot and or damping-off disease symptoms. The tested antagonistic fungi were Trichoderma harzianum, T. Viride and T. hamatum, Bacillus subtilis, Pseudomonas fluorescens and Saccharomyces cerevisiae. The efficacy of Calcium chloride, Thyme oil and /or bio-agents as seed dressing against disease incidence was evaluated in pot experiments under artificially infested with vegetables root rot causal organisms under greenhouse conditions. All applied treatments reduced significantly root rot incidence at both pre-, and post-emergence growth stages of Cucumber, Cantaloupe, Tomato and Pepper plants comparing with untreated check control. The obtained results showed that combination treatments of Calcium chloride, Thyme oil with bio-agents reduced significantly root rot incidence of all grown vegetables comparing with the application of each of them alone. Obtained results, in the present study, lead to suggest that integration between salt or essential oil and bio-agents is considered an applicable, safe and cost-effective method for controlling such soil-borne diseases.
      PubDate: 10/17/2012 17:10:10
       
  • On the Morphological and Genotypic Variations of Two Congeneric species of
           Banana Aphid Pentalonia (Homoptera: Aphididae) from India

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Basant Kumar Agarwala,Parna BhadraBanana aphid Pentalonia has already been described in its two taxonomic forms from hosts of Zingiberaceae and Araceae were regarded as separate taxa, P. nigronervosa Coquerel and P. caladii van der Goot, respectively, based on morphological and molecular differences. Between the two species of Pentalonia tested in our earlier study, the typica species expressed lower fitness from banana host plants than the caladii species from taro host plant suggesting strong genotype(aphids)-environment(host plants) interactions and increased genetic variation. This study shows the morphological variations of the two species and the isozyme variations of the two taxa from Araceae and Musaceae plants, respectively, an indicative of this recent separation as the laboratory-reared clones of banana aphid from the host plants also occur as two variants of the aphid species. In the existing conditions of information, the two species can be certainly considered as separate species.
      PubDate: 10/17/2012 17:10:10
       
  • Genotoxic Effects of Hypericum h eterophyllum Vent. in Human Lymphocytes
           Cultures

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Afide Öcal,Halil Erhan EroğluHypericum species, growing wild in Anatolia, widely used in traditional medicine in . In order to determine the genotoxic effect of Hypericum heterophyllum, human lymphocytes were incubated with the aqueous extracts. The increasing extract concentrations of Hypericum heterophyllum induced micronucleus. The rise of micronucleus shows that Hypericum heterophyllum at high concentrations may become carcinogenic and genotoxic. The positive correlation was observed between micronucleus and age. Also, the positive correlation was observed between micronucleus rates of female and male. Further studies will be needed to determine the effects of the main bioactive components isolated from this species on micronucleus.
      PubDate: 10/17/2012 17:10:10
       
  • Effect of Season on Catch rate, Diet and Aspects of Reproduction of
           Clarias gariepinus (Teleostei: Clariidae) in a Tropical Waterfalls

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Gabriel U. Ikpi,Adetola Jenyo-Oni,Benedict O. OffemThe African catfish Clarias gariepinus (Burchell 1822) are highly valued food-fish and are among the dominant fishes of commercial catches in major rivers in Africa. The aim of the present study was to provide data on reproductive biology, diet habits, length–weight relationship and condition factor that can be useful for conservation and propagation of this species. The study was carried out over 24 months in the three reaches of the 200 km- long of Agbokum waterfalls, Nigeria. The influence of season on catch rate, reproduction and diet was determined from catch samples. There was a significant difference in the catch rate between the dry and wet seasons. Peak catch occurred during the early and late rains. The peak breeding period was June - July. The fish were omnivorous, with trophic flexibility being related to food availability. The condition of the fish was better downstream of the waterfalls than the other two reaches, but declined during dry season and improved during early and late rains. Therefore downstream reaches during wet season are significant in the fisheries studies of waterfalls
      PubDate: 10/17/2012 17:10:10
       
  • The Improved Polymerase Chain Reaction Method Applied for Sex
           Identification of Crested Ibis, Nipponianippon

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Kyung A Kim,Jae SeokCha,So Young Park,Kyung Min Kim,Hee Cheon ParkGiven the necessity for increased conservation of endangered birds such as the Crested ibis, it is crucial to identify the gender of individuals from species with similar external morphologies among females(ZW) and males(ZZ) to establish a self-sustainable population for restoration of the species. Moreover, raising young chicks during the juvenile period based on sex determination encourages familiarity, which might increase mating success rates. Thus, this study was carried out to determine the sex of Crested ibis chicks using three primers designed to check their identity. A set of polymerase chain reaction(PCR) primers was used to amplify a 276 bp chromo-helicase-DNA binding protein region(CHD) on the Z chromosome in both sexes, whereas the other set was used to amplify a 169 bp female-specific CHD sequence on the W chromosome. The sequences have been submitted to NCBI(GenBank Accession Number: AB620020, AB620021). This method will enable researchers to determine the gender of Crested ibis more simply and quickly.
      PubDate: 10/17/2012 17:10:10
       
  • Occurrence of Sclerotinia Foliage Blight Disease of Cucumber and Pepper
           Plants under Protected Cultivation System in Egypt II. Bio-Control
           Measures against Sclerotinia Spp. in Vitro

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  M. M. Abdel-Kader,N. S. El-Mougy,M. D. E. Aly,E. I. EmbabySevere outbreaks of stem or fruit rot symptoms with sclerotial formation were observed as first occurrence during a disease survey of cucumber and pepper crops during the cool season, 2011 in the Protected Cultivation Station, Ministry of Agriculture located at Tookh province, Qalubiya governorate, Egypt. This disease appears during the growing season at the seedling or mature stages of plant growth. Recently, interest has been shown in combining microbial biocontrol agents with other chemical components to increase their activity against plant pathogens. To reach the proposed aim determination of the efficacy of some plant-derived essential oils, plant resistance inducers and plant extracts in combination with biocontrol agents against the growth of Sclerotinia foliage blight pathogens S. sclerotiorum and S. minor was carried out under in vitro conditions. The obtained results in the present study has shown the potential of tested materials as effective inhibitors against pathogenic fungi when combined factors with antagonistic bioagents.
      PubDate: 10/17/2012 17:10:10
       
  • Greenhouse Biological Approach for Controlling Foliar Diseases of Some
           Vegetables

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  M. M. Abdel-Kader,N. S. El-Mougy,M. D. E. Aly,S. M. Lashin,F. Abdel-KareemEvaluation the efficacy of bio-agents, application as foliar spray against vegetables foliar diseases incidence was carried out in open greenhouse conditions. The tested bio-agents were Trichoderma harzianum, T. Viride, Bacillus subtilis, Pseudomonas fluorescensand Saccharomyces cerevisiae were evaluated. The recorded foliar diseases, i.e. Powdery, Downy mildews of Cucumber, Cantaloupe and Pepper as well as Early, Late blights of Tomato were significantly reduced at all treatments either alone or in combinations comparing with untreated plants. Application with either T. harzianum and B. subtilis showed significant reduction in diseases incidence comparing with the other applied bio-agents. The other bio-agent treatments, T. viride, P. fluorescens and S. cerevisiae recorded moderate reduction in this concern. On the light of the present study it could be suggested that the usage of bio-agents might be used as easily applied, safely and cost effective control methods against such foliar plant diseases.
      PubDate: 10/17/2012 17:10:10
       
  • When Posture is Controlled, Acute Hypoxia does not Decrease Core
           Temperature

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Kayli Dalton,Viktoria Brautigam,Michael J. BuonoIt has been reported that acute hypoxia causes a reduction in core temperature in humans. It was hypothesized that this occurs due to both a decrease in metabolic rate and an increase in skin blood flow. However, other studies have found that core temperature decreases with changes in posture. The methods in previous studies finding hypoxia to decrease core temperature did not control for postural changes. Thus, further examination is warranted to examine the effect of hypoxia on core temperature while controlling for posture change. Ten healthy adults, between the ages of 18 and 45 were recruited to participate. Subjects completed one trial consisting of breathing normoxic air (20.9%) for a 2 hour period and hypoxic air for a 1 hour period, while systematically changing posture. During this time core temperature and skin blood flow were recorded every 5 minutes. The results showed that mean core body temperature significantly (p < 0.05) decreased by 0.4℃ when the subjects transitioned from a standing to lying position. However, acute hypoxia, which reduced the mean oxygen saturation to 85%, did not significantly affect core temperature. Such results suggest that when posture is controlled, acute hypoxia does not significantly decrease core body temperature. Thus, the results of previous studies that have reported decreases in core temperature with acute hypoxia, but failed to control for posture, need to be questioned.
      PubDate: 10/17/2012 17:10:10
       
  • In Vitro Production of Cucurbitacins From Trichosanthes c ucumerina L.
           var. c ucumerina

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Seetharam Y. N,Devendra N. K,Everaldo G. Attard,Raghunandan DThe objectives of this study were to investigate the effect of growth regulators in callus induction, increase of biomass and to the yield more of cucurbitacin and cucurbitacin-E in leaf explants of Trichosanthes cucumerina L. var. cucumerina. The explants were cultured on Murashige and Skoog (MS) medium supplemented with different concentrations and combinations of auxins like 2,4-dichlorophenoxy acetic acid (2,4-D), [alpha]-naphthalene acetic acid (NAA), Indole butyric acid (IBA), Indole acetic acid (IAA), cytokinins like Kinetin (kn) and Benzyl adenine (BA). The different concentrations and combinations of BAP + IBA, 2, 4-D + BAP and 2, 4-D + kn increased the callus of fresh weight and dry weight. Among all concentrations and combinations, the best results revealed that leaf-derived callus cultured on 2,4-D (3.0mg-l) + kin (1.0 mg-l) produced the highest total cucurbitacins content with an optimum yield 4.9% w/w and cucurbitacin-E 2.75% w/w at third week.
      PubDate: 10/17/2012 17:10:10
       
  • Molecular Genetics of Acute Myeloid Leukemia

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Nosheen Ashraf,Saba IrshadAcute myeloid leukemia (AML) is categorized by an increase in the number of myeloid cells in the marrow and an arrest in their maturation, frequently resulting in hematopoietic insufficiency. A common theme in acute myeloid leukaemia (AML) associated with balanced reciprocal translocations is the involvement of transcription factors as one or both of the fusion partners. Transcription factors commonly involved in chromosomal translocations include core binding factor (CBF), retinoic acid receptor alpha (RARα), mutations of the NPM1, FLT3, and CEBPA genes. The panel of known molecular markers is continuously increasing, for example, considering the recently described TET2 and IDH1 mutations. Monitoring of the minimal residual disease load with quantitative real-time PCR can be performed for NPM1 and other mutation cases. In addition, the recruitment of transcriptional co-activators and co-repressors by these transcription factors suggests that these proteins also may play a critical role in leukaemogenesis. CBP and p300 have been recently cloned. Treatment for patients younger than 60 years consists of cytotoxic “chemotherapy” and might cure 20–75%, depending primarily on leukemia cell cytogenetics. However, chemotherapy produces such a result in less than 10% of elderly patients because of their inability to survive treatment and, mainly, the association of old age with cytogenetic abnormalities involving chromosomes 5 and 7.The introduction of next generation sequencing will certainly catalyze the molecular characterization of AML.
      PubDate: 10/17/2012 17:10:10
       
  • The Critically Endangered Flora and Fauna of District Battagram Pakistan

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Faizul HaqPresent study was conducted to evaluate the diversity, population status and problems associated with the conservation of flora and fauna of District Battagram of western Himalayan Pakistan. A total of 22 species were reported as Critically Endangered locally including 12 plant and 10 animal species. The data were collected through field observation and from the natives. Major threats to the flora and fauna of the study area are loss of habitat, unplanned collection, deforestation, over grazing, erosion, attack of pathogens, effect of introduced taxa and hunting, shooting and trapping of wild animals.
      PubDate: 10/17/2012 17:10:10
       
  • Dose-dependent Attenuating Effects of Aqueous Extract of C arica papaya
           Seed on CarbonTetrachloride-Induced Renal Toxicity in Rats

    • Abstract: Publication year:  2011Source:Advances in Life Sciences,  Volume  1,  Number  1  Eze Kingsley NwangwaA reasonable population of the world today uses herbal drugs.Carica papaya is one of those fruits that is documented to have the potentials of being used for medicinal purposes.In the present study, theeffects of aqueous extract of Carica papaya seeds on a CCl4-induced renal toxicity was studied. A total of thirty (30) Wistar rats were randomly divided into five groups (n=6). Group 1 (control)was administered with rat chow and water. Group 2,3,4 and 5 received CCl4intraperitoneally (IP) at a dose of 0.8mg/kg and group 3, 4 and 5 received in addition 100mg/kg, 200mg/kg and 300mg/kg extract of Carica papayafor 28 days orally respectively. Samples were collected and assayed for the renal function markers (urea, creatinine and electrolyte). Results obtained showed a dose-dependent statistically-significant decrease in therenal function markers except potassium, which suggests that the extract has a nephro-protective effect. These findings need be further investigated for application in the health care delivery.
      PubDate: 10/17/2012 17:10:10
       
 
 
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