for Journals by Title or ISSN
for Articles by Keywords
  Subjects -> BIOLOGY (Total: 3071 journals)
    - BIOCHEMISTRY (242 journals)
    - BIOENGINEERING (113 journals)
    - BIOLOGY (1453 journals)
    - BIOPHYSICS (46 journals)
    - BIOTECHNOLOGY (227 journals)
    - BOTANY (220 journals)
    - CYTOLOGY AND HISTOLOGY (28 journals)
    - ENTOMOLOGY (67 journals)
    - GENETICS (166 journals)
    - MICROBIOLOGY (261 journals)
    - MICROSCOPY (11 journals)
    - ORNITHOLOGY (26 journals)
    - PHYSIOLOGY (73 journals)
    - ZOOLOGY (138 journals)

BIOTECHNOLOGY (227 journals)                  1 2 | Last

Showing 1 - 200 of 227 Journals sorted alphabetically
3 Biotech     Open Access   (Followers: 7)
Advances in Bioscience and Biotechnology     Open Access   (Followers: 15)
Advances in Genetic Engineering & Biotechnology     Hybrid Journal   (Followers: 8)
African Journal of Biotechnology     Open Access   (Followers: 6)
Algal Research     Partially Free   (Followers: 9)
American Journal of Biochemistry and Biotechnology     Open Access   (Followers: 69)
American Journal of Bioinformatics Research     Open Access   (Followers: 8)
American Journal of Polymer Science     Open Access   (Followers: 30)
Animal Biotechnology     Hybrid Journal   (Followers: 10)
Annales des Sciences Agronomiques     Full-text available via subscription  
Applied Biochemistry and Biotechnology     Hybrid Journal   (Followers: 42)
Applied Bioenergy     Open Access  
Applied Biosafety     Hybrid Journal  
Applied Microbiology and Biotechnology     Hybrid Journal   (Followers: 62)
Applied Mycology and Biotechnology     Full-text available via subscription   (Followers: 5)
Arthroplasty Today     Open Access   (Followers: 1)
Artificial Cells, Nanomedicine and Biotechnology     Hybrid Journal   (Followers: 2)
Asia Pacific Biotech News     Hybrid Journal   (Followers: 2)
Asian Journal of Biotechnology     Open Access   (Followers: 9)
Asian Pacific Journal of Tropical Biomedicine     Open Access   (Followers: 2)
Australasian Biotechnology     Full-text available via subscription   (Followers: 1)
Banat's Journal of Biotechnology     Open Access  
BBR : Biochemistry and Biotechnology Reports     Open Access   (Followers: 4)
Bio-Algorithms and Med-Systems     Hybrid Journal   (Followers: 1)
Bio-Research     Full-text available via subscription   (Followers: 2)
Bioactive Materials     Open Access   (Followers: 1)
Biocatalysis and Agricultural Biotechnology     Hybrid Journal   (Followers: 4)
Biocybernetics and Biological Engineering     Full-text available via subscription   (Followers: 5)
Bioethics UPdate     Hybrid Journal  
Biofuels     Hybrid Journal   (Followers: 11)
Biofuels Engineering     Open Access   (Followers: 1)
Biological & Pharmaceutical Bulletin     Full-text available via subscription   (Followers: 5)
Biological Cybernetics     Hybrid Journal   (Followers: 10)
Biomarkers and Genomic Medicine     Open Access   (Followers: 5)
Biomarkers in Drug Development     Partially Free   (Followers: 1)
Biomaterials Research     Open Access   (Followers: 4)
BioMed Research International     Open Access   (Followers: 6)
Biomédica     Open Access  
Biomedical Engineering Research     Open Access   (Followers: 7)
Biomedical glasses     Open Access  
Biomedical Reports     Full-text available via subscription  
BioMedicine     Open Access  
Bioprinting     Hybrid Journal  
Bioresource Technology Reports     Hybrid Journal  
Bioscience, Biotechnology, and Biochemistry     Hybrid Journal   (Followers: 22)
Biosimilars     Open Access   (Followers: 1)
Biosurface and Biotribology     Open Access  
Biotechnic and Histochemistry     Hybrid Journal   (Followers: 2)
BioTechniques : The International Journal of Life Science Methods     Full-text available via subscription   (Followers: 28)
Biotechnologia Acta     Open Access   (Followers: 1)
Biotechnologie, Agronomie, Société et Environnement     Open Access   (Followers: 2)
Biotechnology     Open Access   (Followers: 7)
Biotechnology & Biotechnological Equipment     Open Access   (Followers: 5)
Biotechnology Advances     Hybrid Journal   (Followers: 33)
Biotechnology and Applied Biochemistry     Hybrid Journal   (Followers: 44)
Biotechnology and Bioengineering     Hybrid Journal   (Followers: 160)
Biotechnology and Bioprocess Engineering     Hybrid Journal   (Followers: 6)
Biotechnology and Genetic Engineering Reviews     Hybrid Journal   (Followers: 14)
Biotechnology and Health Sciences     Open Access   (Followers: 1)
Biotechnology and Molecular Biology Reviews     Open Access   (Followers: 1)
Biotechnology Annual Review     Full-text available via subscription   (Followers: 7)
Biotechnology for Biofuels     Open Access   (Followers: 11)
Biotechnology Frontier     Open Access   (Followers: 2)
Biotechnology Journal     Hybrid Journal   (Followers: 16)
Biotechnology Law Report     Hybrid Journal   (Followers: 4)
Biotechnology Letters     Hybrid Journal   (Followers: 34)
Biotechnology Progress     Hybrid Journal   (Followers: 39)
Biotechnology Reports     Open Access  
Biotechnology Research International     Open Access   (Followers: 2)
Biotechnology Techniques     Hybrid Journal   (Followers: 10)
Biotecnología Aplicada     Open Access  
Biotribology     Hybrid Journal  
BMC Biotechnology     Open Access   (Followers: 16)
Chinese Journal of Agricultural Biotechnology     Full-text available via subscription   (Followers: 4)
Communications in Mathematical Biology and Neuroscience     Open Access  
Computational and Structural Biotechnology Journal     Open Access   (Followers: 2)
Computer Methods and Programs in Biomedicine     Hybrid Journal   (Followers: 8)
Contributions to Tobacco Research     Open Access   (Followers: 3)
Copernican Letters     Open Access   (Followers: 1)
Critical Reviews in Biotechnology     Hybrid Journal   (Followers: 20)
Crop Breeding and Applied Biotechnology     Open Access   (Followers: 4)
Current Bionanotechnology     Hybrid Journal  
Current Biotechnology     Hybrid Journal   (Followers: 4)
Current Opinion in Biomedical Engineering     Hybrid Journal   (Followers: 1)
Current Opinion in Biotechnology     Hybrid Journal   (Followers: 55)
Current Pharmaceutical Biotechnology     Hybrid Journal   (Followers: 9)
Current Research in Bioinformatics     Open Access   (Followers: 14)
Current trends in Biotechnology and Pharmacy     Open Access   (Followers: 9)
EBioMedicine     Open Access  
Electronic Journal of Biotechnology     Open Access   (Followers: 1)
Entomologia Generalis     Full-text available via subscription  
Environmental Science : Processes & Impacts     Full-text available via subscription   (Followers: 4)
Experimental Biology and Medicine     Hybrid Journal   (Followers: 3)
Folia Medica Indonesiana     Open Access  
Food Bioscience     Hybrid Journal  
Food Biotechnology     Hybrid Journal   (Followers: 13)
Food Science and Biotechnology     Hybrid Journal   (Followers: 9)
Frontiers in Bioengineering and Biotechnology     Open Access   (Followers: 6)
Frontiers in Systems Biology     Open Access   (Followers: 2)
Fungal Biology and Biotechnology     Open Access   (Followers: 1)
GM Crops and Food: Biotechnology in Agriculture and the Food Chain     Full-text available via subscription   (Followers: 1)
GSTF Journal of BioSciences     Open Access  
HAYATI Journal of Biosciences     Open Access  
Horticulture, Environment, and Biotechnology     Hybrid Journal   (Followers: 11)
IEEE Transactions on Molecular, Biological and Multi-Scale Communications     Hybrid Journal   (Followers: 1)
IET Nanobiotechnology     Hybrid Journal   (Followers: 2)
IIOAB Letters     Open Access  
IN VIVO     Full-text available via subscription   (Followers: 4)
Indian Journal of Biotechnology (IJBT)     Open Access   (Followers: 2)
Indonesia Journal of Biomedical Science     Open Access   (Followers: 1)
Indonesian Journal of Biotechnology     Open Access   (Followers: 1)
Industrial Biotechnology     Hybrid Journal   (Followers: 18)
International Biomechanics     Open Access  
International Journal of Bioinformatics Research and Applications     Hybrid Journal   (Followers: 15)
International Journal of Biomechatronics and Biomedical Robotics     Hybrid Journal   (Followers: 4)
International Journal of Biomedical Research     Open Access   (Followers: 2)
International Journal of Biotechnology     Hybrid Journal   (Followers: 5)
International Journal of Biotechnology and Molecular Biology Research     Open Access   (Followers: 2)
International Journal of Biotechnology for Wellness Industries     Partially Free   (Followers: 1)
International Journal of Environment, Agriculture and Biotechnology     Open Access   (Followers: 5)
International Journal of Functional Informatics and Personalised Medicine     Hybrid Journal   (Followers: 4)
International Journal of Medicine and Biomedical Research     Open Access   (Followers: 1)
International Journal of Nanotechnology and Molecular Computation     Full-text available via subscription   (Followers: 3)
International Journal of Radiation Biology     Hybrid Journal   (Followers: 4)
Iranian Journal of Biotechnology     Open Access  
ISABB Journal of Biotechnology and Bioinformatics     Open Access  
Italian Journal of Food Science     Open Access   (Followers: 1)
Journal of Biometrics & Biostatistics     Open Access   (Followers: 3)
Journal of Bioterrorism & Biodefense     Open Access   (Followers: 6)
Journal of Petroleum & Environmental Biotechnology     Open Access   (Followers: 2)
Journal of Advanced Therapies and Medical Innovation Sciences     Open Access  
Journal of Advances in Biotechnology     Open Access   (Followers: 5)
Journal Of Agrobiotechnology     Open Access  
Journal of Analytical & Bioanalytical Techniques     Open Access   (Followers: 7)
Journal of Animal Science and Biotechnology     Open Access   (Followers: 6)
Journal of Applied Biomedicine     Open Access   (Followers: 3)
Journal of Applied Biotechnology     Open Access   (Followers: 2)
Journal of Applied Biotechnology Reports     Open Access   (Followers: 2)
Journal of Applied Mathematics & Bioinformatics     Open Access   (Followers: 5)
Journal of Biologically Active Products from Nature     Hybrid Journal   (Followers: 1)
Journal of Biomaterials and Nanobiotechnology     Open Access   (Followers: 6)
Journal of Biomedical Photonics & Engineering     Open Access  
Journal of Biomedical Practitioners     Open Access  
Journal of Bioprocess Engineering and Biorefinery     Full-text available via subscription  
Journal of Bioprocessing & Biotechniques     Open Access  
Journal of Biosecurity, Biosafety and Biodefense Law     Hybrid Journal   (Followers: 3)
Journal of Biotechnology     Hybrid Journal   (Followers: 68)
Journal of Chemical and Biological Interfaces     Full-text available via subscription   (Followers: 1)
Journal of Chemical Technology & Biotechnology     Hybrid Journal   (Followers: 10)
Journal of Chitin and Chitosan Science     Full-text available via subscription  
Journal of Colloid Science and Biotechnology     Full-text available via subscription  
Journal of Commercial Biotechnology     Full-text available via subscription   (Followers: 6)
Journal of Crop Science and Biotechnology     Hybrid Journal   (Followers: 7)
Journal of Essential Oil Research     Hybrid Journal   (Followers: 3)
Journal of Experimental Biology     Full-text available via subscription   (Followers: 25)
Journal of Genetic Engineering and Biotechnology     Open Access   (Followers: 5)
Journal of Ginseng Research     Open Access  
Journal of Industrial Microbiology and Biotechnology     Hybrid Journal   (Followers: 16)
Journal of Integrative Bioinformatics     Open Access  
Journal of International Biotechnology Law     Hybrid Journal   (Followers: 3)
Journal of Medical Imaging and Health Informatics     Full-text available via subscription  
Journal of Molecular Microbiology and Biotechnology     Full-text available via subscription   (Followers: 14)
Journal of Nano Education     Full-text available via subscription  
Journal of Nanobiotechnology     Open Access   (Followers: 4)
Journal of Nanofluids     Full-text available via subscription   (Followers: 2)
Journal of Organic and Biomolecular Simulations     Open Access  
Journal of Plant Biochemistry and Biotechnology     Hybrid Journal   (Followers: 6)
Journal of Science and Applications : Biomedicine     Open Access  
Journal of the Mechanical Behavior of Biomedical Materials     Hybrid Journal   (Followers: 11)
Journal of Trace Elements in Medicine and Biology     Hybrid Journal   (Followers: 1)
Journal of Tropical Microbiology and Biotechnology     Full-text available via subscription  
Journal of Yeast and Fungal Research     Open Access   (Followers: 1)
Marine Biotechnology     Hybrid Journal   (Followers: 5)
Messenger     Full-text available via subscription  
Metabolic Engineering Communications     Open Access   (Followers: 4)
Metalloproteinases In Medicine     Open Access  
Microalgae Biotechnology     Open Access   (Followers: 2)
Microbial Biotechnology     Open Access   (Followers: 9)
MicroMedicine     Open Access   (Followers: 3)
Molecular and Cellular Biomedical Sciences     Open Access  
Molecular Biotechnology     Hybrid Journal   (Followers: 16)
Molecular Genetics and Metabolism Reports     Open Access   (Followers: 3)
Nanobiomedicine     Open Access  
Nanobiotechnology     Hybrid Journal   (Followers: 3)
Nanomaterials and Nanotechnology     Open Access  
Nanomaterials and Tissue Regeneration     Open Access  
Nanomedicine and Nanobiology     Full-text available via subscription  
Nanomedicine Research Journal     Open Access  
Nanotechnology Reviews     Hybrid Journal   (Followers: 5)
Nature Biotechnology     Full-text available via subscription   (Followers: 521)
Network Modeling and Analysis in Health Informatics and Bioinformatics     Hybrid Journal   (Followers: 3)
New Biotechnology     Hybrid Journal   (Followers: 4)
Nigerian Journal of Biotechnology     Open Access  
Nova Biotechnologica et Chimica     Open Access  
NPG Asia Materials     Open Access  
npj Biofilms and Microbiomes     Open Access  
OA Biotechnology     Open Access  
Plant Biotechnology Journal     Open Access   (Followers: 10)
Plant Biotechnology Reports     Hybrid Journal   (Followers: 4)
Preparative Biochemistry and Biotechnology     Hybrid Journal   (Followers: 4)

        1 2 | Last

Journal Cover Horticulture, Environment, and Biotechnology
  [SJR: 0.318]   [H-I: 8]   [11 followers]  Follow
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 2211-3452 - ISSN (Online) 2211-3460
   Published by Springer-Verlag Homepage  [2351 journals]
  • Correction to: Effects of Root Zone Cooling on Butterhead Lettuce Grown in
           Tropical Conditions in a Coir-Perlite Mixture
    • Authors: Wan Fazilah Fazlil Ilahi; Desa Ahmad; Mohammud Che Husain
      Pages: 139 - 140
      Abstract: The original version of this article contained errors. The correct version should be written as shown in the following table.
      PubDate: 2018-02-01
      DOI: 10.1007/s13580-018-0017-z
      Issue No: Vol. 59, No. 1 (2018)
  • Effect of cultivar and growing medium on the fruit quality attributes and
           antioxidant properties of tomato ( Solanum lycopersicum L.)
    • Abstract: The objective of this research was to identify the growing medium that yielded the highest nutritional quality and longest marketable shelf life in tomato fruits. ‘TY Megaton’ and ‘Yureka’ cultivars were grown on soil and coir pith in the same climate-controlled glasshouse using a standard nutrient solution and the recommended cultivation practices. Fruits were harvested at the pink stage of ripening and stored at 12 °C in 85 ± 5% relative humidity for 20 days. The fruits of both cultivars grown on either growing medium were of acceptable quality for sale after 3 weeks of storage. The contents of the most important secondary metabolites of tomato responsible for providing their antioxidant activity (ascorbic acid, lycopene, and polyphenols) were not significantly affected by the choice of growing medium; however, significant differences were observed between the cultivars throughout the storage period. The results of this study demonstrated that the choice of cultivar is more important for fruit quality than the growing medium. The lycopene content and antioxidant activity of the fruits suggest that it is possible to achieve optimum nutrition from the pink-stage fruit of both cultivars after 12 days of storage, irrespective of the growing medium used.
      PubDate: 2018-03-14
  • Expression, glycosylation, and function of an anti-rabies virus monoclonal
           antibody in tobacco and Arabidopsis plants
    • Abstract: Plants have emerged as one of the most attractive systems for producing human therapeutic proteins against viral diseases. These include diagnostic reagents, vaccines, and antibodies. This process is known as molecular biofarming. The objective of this study was to develop and evaluate tobacco and Arabidopsis as plant platforms for producing human anti-rabies monoclonal antibody (mAb). Both tobacco and Arabidopsis transgenic plants were generated by Agrobacterium-mediated transformation. Purification of mAb SO57K from each plant was performed with ammonium sulfate-mediated precipitation and protein A affinity columns. SDS–PAGE analysis showed that the purity of mAb SO57K obtained from each transgenic plant was similar, whereas Arabidopsis showed approximately twofold greater protein expression than tobacco. The N-glycosylation was not significantly different between proteins from the two plant species, with both showing oligo-mannose glycan structures. The mAbs SO57 derived from both the model plants had similar neutralizing efficacy against target virus strain CVS-11. Taken together, tobacco and Arabidopsis are both promising platforms for producing a human anti-rabies mAb.
      PubDate: 2018-03-14
  • CO 2 enrichment increased leaf initiation and photosynthesis in
           Doritaenopsis Queen Beer ‘Mantefon’ orchids
    • Abstract: The plants have potential on carbon sink because plants absorb carbon dioxide (CO2) in ambient and use that for photosynthesis. CO2 enrichment, which is a commonly used technique in vegetable culture, may gain importance in ornamental production, potentially shortening the growth period. However, compared with forests and crop plants, the studies of CO2 enrichment on orchids are relatively limited. This study was undertaken to investigate the effects of elevated CO2 concentrations on leaf initiation and photosynthesis in the orchid Doritaenopsis Queen Beer ‘Mantefon’. Leaf growth and photosynthetic characteristics were measured in the plants grown under 450 (ambient control), 800, and 1600 µmol mol−1 CO2 during the latter 6 h of the dark period for 36 weeks. The number of leaves increased with the elevated CO2 concentration, and the time to leaf initiation decreased with elevated CO2 concentration. However, leaf span and biomass was lower in the plants grown under the higher CO2 concentrations compared to the plants grown under ambient CO2. Maximum net CO2 uptake, transpiration rate, and stomatal conductance were higher in the plants grown under 1600 µmol mol−1 CO2 than in the plants grown under 450 µmol mol−1 CO2. The 800 and 1600 µmol mol−1 CO2 concentrations accelerated leaf initiation and net CO2 uptake. We found that concentrations of CO2 in the 800 and 1600 µmol mol−1 CO2 range were controlled for growth of Doritaenopsis orchids.
      PubDate: 2018-03-14
  • Development of Bi gene-based SNP markers for genotyping for bitter-free
           cucumber lines
    • Abstract: High contents of cucurbitacin compounds result in a bitter taste in cucumbers. The Bi locus mapped to chromosome 6 is responsible for cucumber bitterness. The Bi gene encodes oxidosqualene cyclase, a key enzyme in the cucurbitacin biosynthetic pathway. Two alleles of the Bi gene responsible for the phenotypic variation in bitterness differ by a single point mutation in the coding region. An efficient genotyping system is necessary to allow breeders to screen for bitterness alleles in their breeding programs. In the present study, the single nucleotide polymorphism located within the Bi gene, which is directly linked to cucumber bitterness, was utilized for gene-based marker development. We developed reliable and cost-effective high-resolution melting (HRM)- and Kompetitive Allele-Specific PCR (KASP)-based molecular markers (BiHRM1 and Bi-KASP). These gene-based markers should enhance the accuracy and effectiveness of marker-assisted selection for bitter-free cucumber lines in cucumber breeding programs.
      PubDate: 2018-03-14
  • Silicon application during vegetative propagation affects photosynthetic
           protein expression in strawberry
    • Abstract: We examined the effect of source, concentration, and application method of silicon (Si) on the growth, development, and photosynthetic capacity of Fragaria × ananassa ‘Maehyang’ and ‘Seolhyang’. We applied 0, 35, or 70 mg L−1 Si in a potassium silicate (K2SiO3), sodium silicate (Na2SiO3), or calcium silicate (CaSiO3) solution to plants via subirrigational supply or foliar application. Plant height of ‘Maehyang’ was highest with the 70 mg L−1 Si Na2SiO3 foliar application, but it was not significantly different among treatments in ‘Seolhyang’. Crown size was not significantly affected by source, concentration, or application method in both cultivars. Elemental concentrations in the shoot and root of ‘Maehyang’ were the highest in the 35 mg L−1 Si Na2SiO3 treatment for both application methods. Elemental concentrations in the shoot and root of ‘Seolhyang’ were the highest in the 70 mg L−1 Si K2SiO3 foliar application. Photosynthetic proteins abundantly increased in both cultivars with the 35 or 70 mg L−1 Si K2SiO3 treatment, for both application methods. Moreover, two important photosynthetic proteins, viz. PsaA and PsbA, were expressed and their expressions were higher with the 35 or 70 mg L−1 Si K2SiO3 treatment, for both application methods. These results suggested that 35 or 70 mg L−1 Si, supplied in the form of K2SiO3, promoted photosynthetic protein expressions the greatest, regardless of the application method, in both ‘Maehyang’ and ‘Seolhyang’.
      PubDate: 2018-03-14
  • Calcium chloride and calcium gluconate peduncle infiltrations alleviate
           the internal browning of Queen pineapple in refrigerated storage
    • Abstract: This study determined the effects of calcium chloride (CaCl2) and calcium gluconate (CaGlu) in alleviating the incidence of internal browning (IB) in ‘Queen’ pineapple (Ananas comosus) cv. ‘Sawi’ during storage at 13 °C. Pineapples were vertically peduncle-infiltrated with 2% CaCl2 or 2% CaGlu for 48 h. IB and browning-related factors of tissue adjacent to the core were investigated after 7 and 14 days of cold storage followed by 2 days at room temperature. CaGlu treatment alleviated IB intensity and severity more effectively than CaCl2. CaCl2 and CaGlu retarded membrane peroxidation and the activity of browning enzymes such as phenylalanine ammonia-lyase and polyphenol oxidase and increased the total phenols in the fruit. However, CaGlu-treated fruit had lower levels of tissue electrolyte leakage and lipoxygenase activity and higher antioxidant capacity and antioxidant enzyme activity. This evidence suggests that CaGlu peduncle infiltration is the preferred choice for alleviating IB in ‘Queen’ pineapple during low temperature storage.
      PubDate: 2018-03-13
  • Growth and propagation rate of strawberry transplants produced in a plant
           factory with artificial lighting as affected by separation time from stock
    • Abstract: The suitable size of runner plants based on separation time from their stock plants was determined to maximize propagation rate of strawberry transplants using autotrophic transplant propagation method, a novel propagation method in a plant factory with artificial lighting for transplant production (T-PFAL). When runner tips with unfolded bracts were fixed on a growing medium to generate runner plants, the first true leaf, a runner, and roots of the runner plants appeared 6–10 days after fixing the runner tips (DAF), and their shoot and root dry weights significantly increased 6 and 10 DAF, respectively. The top/root ratio was the greatest 10 DAF. The net photosynthetic rate of runner plants 9, 11, and 13 DAF decreased after separation, while that at 15, 17, and 19 DAF did not. The runner plants separated from their stock plants 15, 20, and 25 DAF were successfully grown until 30 DAF; however, those 10 DAF was not. At 30 DAF, the root dry weight of the runner plants separated from the stock plants 15 DAF was smaller than that of the runner plants separated 20, 25, and 30 DAF, whereas the dry weights of leaves and runners were not significantly different. The use of small stock plants could reduce the required timescale from placing stock plants to produce new runner plants, but there was no significant difference in the timescales when the runner plants were separated 15 or 20 DAF due to the relatively insufficient growth of runner plants separated 15 DAF. These results indicate that runner plants separated 20 DAF, with two true leaves and a 5-mm crown diameter, would be suitable stock plants for the autotrophic transplant propagation method in a T-PFAL for strawberry propagation.
      PubDate: 2018-03-13
  • The effect of light quality on growth and endopolyploidy occurrence of in
           vitro-grown Phalaenopsis ‘Spring Dancer’
    • Abstract: In the present study, the effect of light quality on endoreduplication and growth in Phalaenopsis ‘Spring Dancer’ plantlets was studied. The response of protocorm-like body (PLB)-derived plantlets subjected to monochromatic red (R60), blue (B60), and various combinations of both lights was investigated. Flow cytometry was used to investigate the effect of light on endocycle and growth, cell division, and endopolyploidy levels. In addition, the activities of stress-related enzymes such as catalase (CAT) and peroxidase (POD) were analyzed from leaves and roots. After 8 weeks, the leaf area of plants grown under monochromatic R60 and B60 light was found to be higher than that of plants grown under other wavelengths of light, except the control plants (fluorescent light). These results revealed monochrome blue (B60) light increased the ratio of endoreduplicated cells (4C–8C). CAT activity was highest in leaves grown under R60; however, the oxidized phenol concentration in the culture medium was lowest under R60 while it was the highest under B60 and fluorescent light (F). This indicates that plantlets were less stressed under R60 than B60 or F. The results of this study reveal that stress induced by monochromatic light stimulates endopolyploidy in leaves, which may subsequently increase Phalaenopsis leaf size.
      PubDate: 2018-03-13
  • Effects of backcrossing on quality of strawberry fruit
    • Authors: Sun Yi Lee; Seung Yu Kim; Dae Young Kim; Ho Jeong Jeong; In Seok Um; Il Rae Rho
      Abstract: American/European strawberry cultivars are morphologically different from Asian cultivars with American cultivars generally having higher yields, fruit weight, and fruit hardness and Asian cultivars tending to have higher sugar content. In this study, we performed backcrossing to improve the fruit qualities of Asian varieties of strawberries using American cultivars as the donor parent. The F1 progeny derived from crosses between Asian and American cultivars tended to have lower sugar content and higher fruit weight and yield than Asian cultivars, but fruit hardness did not differ between the Asian cultivars and the progenies. The percent germination and survival ratio were not significantly different between the BC1F1 and BC2F1 generations, whereas the percent germination decreased rapidly with advancing backcross generations. The BC1F1 generation had slightly higher sugar content and the sugar content of the BC2F1 generation increased significantly over the BC1F1 generation, but fruit weight and yield decreased. However, there was variability among individual progeny from the same cross. With advancing generations of backcrossing (BC3F1, BC4F1, BC5F1), sugar content tended to improve while fruit weight and yield tended to decrease, and hardness tended not to change. Therefore, to develop new cultivars with the combined qualities of Asian and American cultivars, we concluded that generations beyond the BC2F1 are not necessary, and that the selection efficiency of superior individual plants can be improved if the number of seedlings is increased in generations before the BC1F1 or BC2F1.
      PubDate: 2018-02-19
      DOI: 10.1007/s13580-018-0023-1
  • Morphological and genetic diversity of Moringa oleifera and Moringa
           peregrina genotypes
    • Authors: Anber Mahmoud Ahmed Hassanein; Abdulrahman Abdulah Al-Soqeer
      Abstract: This study aimed to assess the diversity of Moringa oleifera and Moringa peregrina in Saudi Arabia. Seven genotypes per species were characterized morphologically using 14 morphological characteristics and genetically using 10 ISSR primers. The studied genotypes were classified according to each characterization, and the correlation between morphological and genetic diversity was investigated. M. oleifera genotypes were distinguished by long, thick stems with more crown spread, and larger pinnate leaf area compared to those of M. peregrina. Plant height and pinnate dimensions were the most pertinent indicators for the discrimination among genotypes where they were correlated to all morphological characteristics and gave representative classification. Diversity was found between the two species and among the genotypes of each species. The ISSR molecular markers were effective in the characterization of genetic diversity of Moringa where the average of polymorphism across the 14 genotypes was sufficient (90.8%). Dinucleotide repeat (AC)n primers (UBC825, UBC826 and UBC827) and a trinucleotide primer (UBC864) were the best primers, regenerating the maximum number of polymorphic bands per primer (8–10) and the highest polymorphism level among genotypes (91–100%). Principal coordinate analysis showed similar classification for morphological and molecular data where the two species were separated in two main clusters with three sub-clusters per species. The association analysis showed good correlation, up to a 0.84 determination coefficient, between genetic diversity and morphological variability. The primers UBC826 and UBC827 were the most informative markers, revealing correlations with 12 morphological characteristics. The results of the present study provide valuable morphological and molecular characterizations of the two most important Moringa species. Efficient morphological classification based on three characteristics could facilitate the evaluation of diversity in Moringa. Genetic diversity could be simply assessed using the two best ISSR primers (UBC826 and UBC827). The diversity found among genotypes could be of great importance for the selection of clones with desirable characteristics for further improvements of Moringa.
      PubDate: 2018-02-19
      DOI: 10.1007/s13580-018-0024-0
  • Determination of flavonoids in Acer okamotoanum and their aldose reductase
           inhibitory activities
    • Authors: Jaemin Lee; Dong-Gu Lee; Joyce P. Rodriguez; Jun Yeon Park; Eun Ju Cho; Sonia D. Jacinto; Sanghyun Lee
      Abstract: Plants in the genus Acer include medicinal plants and deciduous tree species in which several bioactive compounds have been isolated. In this study, flavonoids were isolated from the aerial parts of Acer okamotoanum by open column chromatography and identified by spectroscopic analysis as afzelin, quercitrin, and isoquercitrin. Among these flavonoids, quercitrin and isoquercitrin exhibited potent aldose reductase inhibitory activity (IC50 value of 0.40 and 0.63 μM, respectively). Almost all studied tissues of Acer spp. contained high amounts of quercitrin. The leaf of A. mono had the highest amount of quercitrin (61.90 μg g−1). Our results demonstrated that Acer species contain high concentrations of flavonoids with promising aldose reductase inhibitory activity that could be utilized to develop novel therapeutics for diabetic disorders.
      PubDate: 2018-02-14
      DOI: 10.1007/s13580-018-0014-2
  • Estimation of greenhouse CO 2 concentration via an artificial neural
           network that uses environmental factors
    • Authors: Tae Won Moon; Dae Ho Jung; Se Hong Chang; Jung Eek Son
      Abstract: In order to improve photosynthesis efficiency and crop growth, it is important to predict CO2 concentration as well as CO2 consumption in greenhouses. The objective of this study was to predict greenhouse CO2 concentration via an artificial neural network (ANN) that incorporated environmental factors. Temperature, relative humidity, atmospheric pressure, solar radiation, and CO2 concentration were measured every 10 min over a 6-month period in a greenhouse located in Boryeong, Korea. Measured environmental data were used to train the ANN. Among the 14,866 data points used in the experiment, 10,000 and 4866 data points were used for training and testing, respectively. An ANN with an input layer with input neurons, two hidden layers with 32–2048 neurons, and an output later with one neuron was selected. A rectified linear unit was used as the activation function in each node of the ANN. An ANN structure that included 256 neurons in the hidden layers showed the highest test accuracy (R2 = 0.97) was selected from all the structures, while multivariate linear regression showed lower test accuracy than the ANN (R2 = 0.78). The ANN accurately estimated CO2 concentration in the greenhouse using big data for changing patterns of the inside environmental factors without vent position data. Furthermore, it is possible to estimate crop CO2 consumption in greenhouses with this ANN using the change in greenhouse CO2 concentration.
      PubDate: 2018-02-12
      DOI: 10.1007/s13580-018-0015-1
  • Retraction Note to: Effect of Calcium and Silicate Application on
           Pathogenicity of Erwinia carotovora subsp. carotovora in Zantedeschia spp.
    • Authors: Hae Ryong Cho; Hyang Young Joung; Ki-Byung Lim; Ki Sun Kim
      Abstract: The authors are retracting this article (Cho et al., 2013). After publication the authors became aware that the article contains errors in the reporting and interpretation of data, and consequently, the conclusions drawn are not valid. Hae Ryong Cho is deceased; all other authors agree with this retraction.
      PubDate: 2018-02-08
      DOI: 10.1007/s13580-018-0016-0
  • Growth and CO 2 exchange in young Phalaenopsis orchids grown under
           different levels of humidity during the vegetative period
    • Authors: Hyo Beom Lee; So Hyeon Lim; Nam Hyeon Lim; Seong Kwang An; Ki Sun Kim
      Abstract: Phalaenopsis plants are distributed throughout tropical regions with high humidity, which is generally necessary for their cultivation. This study was conducted to determine the effects of different relative humidity (RH) conditions on the growth and photosynthetic characteristics of young Phalaenopsis plants. Three-month-old clones of Phalaenopsis ‘Blanc Rouge’ and Doritaenopsis ‘Mantefon’ plants were grown under 30 ± 10, 50 ± 10, 70 ± 10, or 90 ± 10% RH conditions. The RH treatments were maintained for approximately 6 months in environment-controlled growth chambers. The temperature and photoperiod were maintained at 28 °C and 12/12 h, respectively. At the start of the RH treatments, the mean leaf span was 14.2 and 16.7 cm in ‘Blanc Rouge’ and ‘Mantefon’ plants, respectively. In both cultivars, plants grown under 70% RH showed the longest leaf span, which was 25.3 and 20.6 cm in ‘Blanc Rouge’ and ‘Mantefon’, respectively. High-humidity conditions (i.e. 70 and 90% RH) generally promoted the length of leaf span, but the growth rate of leaf span was slightly lower at 90% RH than at 70% RH. CO2 exchange, stomatal conductance, and transpiration rate of the uppermost mature leaf were observed in ‘Blanc Rouge’ plants grown at 30, 50, and 70% RH. The highest rate of CO2 uptake was observed in the plants grown at 70% RH, followed by 50 and 30% RH. The stomatal conductance increased and transpiration decreased with increasing RH. The maximum quantum yield of photosystem II (Fv/Fm) of plants grown under 70 and 90% RH slightly decreased after 9 weeks of treatments, but there were no differences among the treatment groups at the conclusion of the study. These results indicated that high RH (e.g. 70%) slightly increases CO2 uptake and leaf span of young Phalaenopsis plants.
      PubDate: 2018-01-21
      DOI: 10.1007/s13580-018-0005-3
  • Impact of LED light sources on morphogenesis and levels of photosynthetic
           pigments in Gerbera jamesonii grown in vitro
    • Authors: Bożena Pawłowska; Marek Żupnik; Bożena Szewczyk-Taranek; Monika Cioć
      Abstract: Gerbera jamesonii cv. Dura is a well-known and economically important ornamental crop that is produced using micropropagation. This study aimed to evaluate the effect of various light wavelengths in six different light emitting diode (LED) treatments on biometric attributes and photosynthetic pigment content in gerbera plants grown in vitro. The LED treatments were B (100% blue), RB1 (50% red and 50% blue), RB2 (70% red and 30% blue), RBW (40% red, 40% blue, and 20% white), RBfR (49% red, 49% blue, and 2% far red), and R (100% red). Light quality was seen to significantly affect plant growth and development. The highest shoot multiplication rate was observed in plants grown under both RB1 and RB2. Plantlets grown under R displayed the greatest shoot elongation, and their petioles were three times longer than those grown under B. Both B and R resulted in reduced leaf blade area. Rooting of shoots was observed in plants grown under all light treatments; however, R stimulated adventitious root formation. The average number of roots produced by plants under all light treatments was calculated and found to match that produced under RB2. The RBfR treatment caused a reduction in leaf dry weight compared to that produced under B, which represented the highest leaf dry weight. Control fluorescent lighting, supplied by Philips TL-D 36W/54 lamps, had a positive effect on root dry weight. Photosynthetic pigment content was higher in the leaves of rooted plants compared to that in plants at the multiplication stage. RB2 resulted in higher concentrations of chlorophyll a and b and carotenoids, whereas lower accumulation of photosynthetic pigments was observed under R. These results demonstrate that light wavelength manipulation through LEDs can be strategically used for the rapid and large-scale propagation of gerbera. The outcomes of this study offer potential to improve micropropagation efficiency and reduce the costs of in vitro plant production.
      PubDate: 2018-01-21
      DOI: 10.1007/s13580-018-0012-4
  • Effect of organic fertilizer application on growth characteristics and
           saponin content in Codonopsis lanceolata
    • Authors: Kyeong Gon Moon; In Seok Um; Seung Ho Jeon; Young Son Cho; Young-Guk Kim; Il Rae Rho
      Abstract: Organic fertilizers were applied in four different forms: mixed organic matter, fermentation cake, bacterial culture, and rice husks, excluding conventional chemical fertilizer and non-treatment used as control. The results showed that soil pH was acidified after fermentation cake and chemical fertilizer treatment. Specifically, chemical fertilizer treatment showed higher phosphoric-acid content than other treatments, while total N content was higher in fermentation cake, mixed organic matter and chemical fertilizer. Growth of Codonopsis lanceolata showed superior tendency in the treatment of mixed organic matter and fermentation cake. Lancemacides, the major saponin of C. lanceolata, could be identified as foetidissimoside A, lancemaside A, lancemaside B, and lancemaside D. However, among them, quantitative analysis could not be conducted on foetidissimoside A due to its very low content, and lancemaside A was the most abundant saponin in the root from all the treatments. The content of lancemaisde A according to organic fertilizer application showed the highest value of 0.12 mg g−1 in the treatment of mixed organic matter, followed by the fermentation cake, bacterial culture, non-treatment, rice husks and chemical fertilizer, in that order. The content of lancemaside B and D was very low compared to lancemaside A, and there was no difference among treatments. Therefore, it was verified that the growth of C. lanceolata was superior in application of mixed organic matter and fermentation cake, and the major saponin, lancemaside A, was also increased.
      PubDate: 2018-01-21
      DOI: 10.1007/s13580-018-0013-3
  • Foliar or subirrigational silicon supply modulates salt stress in
           strawberry during vegetative propagation
    • Authors: Yoo Gyeong Park; Sowbiya Muneer; Soohoon Kim; Seung Jae Hwang; Byoung Ryong Jeong
      Abstract: Availability of silicon (Si) to the plant as a silicic acid could be a limiting factor for crop productivity. Although the effect of Si has been shown to vary by plant species, Si has been shown to improve photosynthesis, and to remediate nutrient imbalances and abiotic stresses in plants. Plants of two Korean strawberry cultivars ‘Seolhyang’ and ‘Maehyang’ at a propagation stage was grown for 58 days with a complete nutrient solution (EC of 0.8 dS m−1) and also with supplementation of either 0, 35, or 70 mg L−1 Si from either potassium silicate (K2SiO3), sodium silicate (Na2SiO3), or calcium silicate (CaSiO3). The Si in solution was supplied to the roots through subirrigational nutrient solution or to the leaves by daily foliar applications. The growth and development of the plants were assessed after this period. Then the plants were subjected to one of different salt stress conditions (EC of either 0.0, 0.8, 1.6, or 2.4 dS m−1) for 14 days. The high EC (2.4 dS m−1) resulted in oxidative stress in the form of H2O2 and O 2 −1 in the leaves of the Si-non-treated plants as compared to Si-treated plants, and no or less stress was observed in the 0.0, and 0.8 or 1.6 dS m−1, respectively. However, Si, especially supplied from K2SiO3, relieved the stress level. Interestingly, the isozyme activities of three important antioxidant enzymes, superoxide dismutase, catalase and guaiacol peroxidase, were abundantly increased in the Si-treated plants, particularly with K2SiO3, even under the high EC (2.4 dS m−1) treatment and decreased in the Si-non-treated plants. The observed responses to Si supply in high salt-stressed plants indicate that Si, particularly supplied from K2SiO3, has a significant role in limiting the negative effects of salt stress by maintaining antioxidative enzymes during the vegetative propagation.
      PubDate: 2018-01-19
      DOI: 10.1007/s13580-018-0002-6
  • Flavonoid accumulation in common buckwheat ( Fagopyrum esculentum ) sprout
           tissues in response to light
    • Authors: Tae-Gyu Nam; You Jin Lim; Seok Hyun Eom
      Abstract: The content and accumulation patterns of flavonoids in response to light were investigated in common buckwheat (Fagopyrum esculentum) sprouts over the course of 9 days. Buckwheat sprouts were grown under fluorescent (FL), red (RL), and blue (BL) light sources, as well as in darkness, and their extracts were analyzed. Sprout elongation and chlorophyll content were high in the presence of red light. The contents of the major buckwheat sprout flavonoids, orientin, isoorientin, vetexin, isovetexin, and rutin all peaked 5 days after germination under all four growth conditions, then gradually decreased. Sprouting cotyledons accumulated around 1.5-fold more orientin, isoorientin, quercetin-3-O-robinobioside, and rutin in the presence of red light, including from the RL and FL light sources, than in blue light alone. The C-glycosyl flavones, orientin, isoorientin, vetexin, and isovetexin, were not detected in the stem tissues of the hypocotyls, but C-glycosyl flavonols, such as quercetin-3-O-robinobioside and rutin, were present, and were twice as abundant under BL and FL than in the RL and darkness conditions. In the root tissues, a small amount of C-glycosyl flavonols was detected after BL exposure only; however, the other flavonoids were not detected at all. These results indicated that red light induces flavonoid biosynthesis in the cotyledons of buckwheat seedlings, but blue light has a greater effect on the accumulation of C-glycosyl flavonols in other seedling tissues.
      PubDate: 2018-01-19
      DOI: 10.1007/s13580-018-0003-5
  • Effects of 1-methylcyclopropene (1-MCP) and polyethylene (PE) film liner
           treatments on the fruit quality of cold-stored ‘Gamhong’ apples
    • Authors: Kyoung-ook Kim; Jingi Yoo; Jinwook Lee; Nay Myo Win; Seulgi Ryu; Jeung-Sul Han; Hee-Young Jung; Myoung-Gun Choung; Yong-Deuk Kwon; Dong Hoon Lee; In-Kyu Kang
      Abstract: We evaluated the effects of 1-methylcyclopropene (1-MCP) treatment and polyethylene (PE) film liner application on the fruit quality attributes of cold-stored ‘Gamhong’ apples. Flesh firmness was better retained with 1-MCP treatment than by PE film liner treatment, regardless of 1-MCP treatment time. Titratable acidity was also well-maintained during cold storage. In contrast, the soluble solids contents were not consistent during storage. The 1-MCP treatment greatly reduced the internal ethylene concentration, when compared with the control and PE film liner treatments, irrespective of the 1-MCP treatment time. The weight loss of the fruit was greatly reduced by the PE film liner treatments, as well as by the 1-MCP treatments. The fruit peel color variables were not affected by the 1-MCP or PE film liner treatments during cold storage. Nevertheless, the peel color variables were greatly different in the shaded tissue than in the sunny side during cold storage. Our results indicate that 1-MCP treatment, as well as PE film liner application, should be highly recommended for retaining the fruit quality of cold-stored ‘Gamhong’ apples.
      PubDate: 2018-01-17
      DOI: 10.1007/s13580-018-0006-2
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Tel: +00 44 (0)131 4513762
Fax: +00 44 (0)131 4513327
Home (Search)
Subjects A-Z
Publishers A-Z
Your IP address:
About JournalTOCs
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-