TAILIEUCHUNG - Studies on isolation, characterization and in-vitro screening of plant growth promoting rhizobacteria from Rhizospheric soil of chrysanthemum (Dendranthema grandiflora Tzvelev.)

A total of forty rhizosphere soil samples were collected from different locations of Bengaluru urban district, Karnataka and used for isolation of PGPRs by standard dilution plate method. Seventy bacterial isolates were selected, purified and were examined for morphological characters like colony morphology, cell shape, Gram reaction. Isolates were diverse in their morphology ranging from dull to milky white, rough to smooth margins, viscous, small to large, non-spreading and spreading. Among them twenty seven and seventeen isolates were identified as N2 fixers and as Phosphate solubilizers by initial screening respectively. Further, the selected PGPR isolates were biochemically characterized and identified as Azotobacter spp. Bacillus spp. and Pseudomonas sp. The isolates screened qualitatively and quantitatively for plant growth promotion activities like N2 fixation, phosphate solubalization and growth hormone production (IAA). The amount of nitrogen fixed in Waksman nitrogen free broth ranged from to mg per g of C utilized and highest fixed by isolate PGPR-24. Phosphate solubalization efficiency and phosphate solubilization activity in Pikovskaya’s medium was ranged from % to % and %to respectively and more phosphate solubilization activity showed by isolatePGPR-9. Indole acetic activity (IAA) production ranged between to μg per ml. | Studies on isolation, characterization and in-vitro screening of plant growth promoting rhizobacteria from Rhizospheric soil of chrysanthemum (Dendranthema grandiflora Tzvelev.)

• Sinh học
• Studies on Isolation
• Characterization and in vitro screening
• In vitro screening of plant
• Promoting rhizobacteria
• Rhizospheric soil of chrysanthemum
• Dendranthema grandiflora Tzvelev
• Saccharomyces cerevisiae
• Organoleptic analysis
• Pineapple and Sapota
• Quality wine production
• Yeast and its comparative performance
• Studies on isolation of yeast
• Small ruminants
• DNA isolation and PCR
• Field samples of small ruminants
• Studies on molecular characterization
• Salmonella spp
• Studies on endophytes isolated
• Endophytes isolated from rose
• Determination of antimicrobial activity
• Removal from the market
• Isolation of endophytes
• BMC Molecular and Cell Biology
• Porcine heart
• Endothelial cell
• Fresh tissue
• Cardiovascular studies
• Report medicine
• traditional medicine
• scientific reports
• biochemical studies
• environmental medicine
• Crystal structure
• Genetic diversity
• Jaccard’s coefficient of similarity
• PCR amplification
• DNA isolation
• Solanum tuberosum L
• Journal of Botany
• Prezygotic isolation mechanisms
• Staminal lever mechanism
• Species rich genera
• Salvia heldreichiana
• Broad pinnate leaves
• Biotechnology and food sciences
• Endophytic fungi
• Alangium salviifolium Wangerin
• Alangium salviifolium
• Light microscopy
• Fungal endophytes
• Forest plants
• Plant growth promoting traits
• Plant growth promoting studies
• medical analysis
• BMC Geriatrics
• Social isolation
• Physical activity
• Sleep disorder
• Hazards regression analysis
• Epidemiological studies