| dc.description.abstract |
The objective of this study was to isolate and characterize a rhizospheric bacterium
from Sorgastrum nutans, growing around the desert region of Rajasthan (India).
Plant growth promoting rhizobacteria (PGPR) are known to influence plant growth by
various direct or indirect mechanisms. Isolated strain was tested for various PGP
traits like 1-aminocyclopropane-1-carboxylate (ACC) deaminase activity, phosphate
solubilization, indole acetic acid production, production of siderophore, nitrogen
fixation and ammonia production. Bio-control ability of isolate was screened by antagonistic
activity against certain fungal/bacterial pathogens as well as Hydrogen
cyanide HCN production. Isolated test organism was also biochemically characterized.
Further identification of isolate was performed by PCR based 16S rRNA gene
sequencing. Moreover evaluation of the isolate SNP-18 exhibiting multiple plant
growth promoting (PGP) traits on soil/plant system is on-going to uncover their
efficacy as effective PGPR. |
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