Isolation and characterization of rhizospheric bacteria from medicinal plants and their efficacy for plant growth promotion in Kalmegh (Andrographis paniculata)
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Date
2016
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Anand Agricultural University, Anand
Abstract
The present study was aimed to isolate plant growth promoting
bacteria from the rhizosphere of medicinal plants. Total eighteen bacteria were
isolated using different nutrient media from rhizospheric soil of medicinal plants
viz. Safed musli (Chlorophytum borivillianum), Shankh pushpi (Convolvulus
pluricaulis) and Kalmegh (Andrographis paniculata) from Anand Agriculture
University, Gujarat. The isolates were characterized morphologically and
biochemically. Amongst all, three isolates A5, A7 and A18 proved to be the best
for their plant growth promoting efficiency viz. solubilization/mobilization of
insoluble phosphate and potash, production of siderophore, cellulase and ACC
deaminase enzyme and growth hormone indole acetic acid (IAA) as well as
showed inhibition of plant pathogenic fungi Macrophomina phaseolina and
Aspergillus flavus by 27% to 55%, respectively
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Keywords
Agricultural Microbiology, Characterization