Isolation of a multi-trait plant growth promoting Brevundimonas sp. and its effect on the growth of Bt-cotton.

ABSTRACT: Arid regions pose a serious problem for crop production by suppressing plant growth. The use of plant growth promoting rhizobacteria (PGPR) as bioinoculant may be promising to enhance the crop yield in arid conditions. In the present investigation, four strains of cultivable bacteria associated with the rhizosphere of Saccharum L. grown in arid region were isolated using N-free media. Assessment of their nitrogen-fixing ability through amplification of nifH gene showed the presence of nifH gene (390 bp) in only one (MDB4) of the four isolates. The nitrogen-fixing potential of this isolate was confirmed by the presence of nitrogenase activity determined using acetylene reduction assay. The diazotrophic MDB4 isolate also exhibited other PGPR traits, such as the production of indole-3-acetic

SUBMITTER: Kumar V 

PROVIDER: S-EPMC3909574 | biostudies-literature | 2014 Feb

REPOSITORIES: biostudies-literature