Journal
GEOMICROBIOLOGY JOURNAL
Volume 33, Issue 10, Pages 942-947Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01490451.2015.1128994
Keywords
Bacillus; diversity; nifH gene; PGP traits; salinity
Funding
- project Application of Microorganisms in Agriculture and Allied Sectors of the NBAIM-ICAR, UP, Mau, India
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In order to explore salt tolerant plant growth promoting rhizobacteria (PGPR), 121 isolates were recovered from Tsunami affected area of Andaman and Nicobar Islands, India, out of which 23 were grown at 10% NaCl. Out of total isolates grown at 10% NaCl concentration, 14 solubilized phosphate, 13 showed siderophore production, five showed Indole acetic acid (IAA) production and 16 produced one or more extra cellular enzymes. Isolates SJ10 and CR5 showed the highest enzyme production and PGP properties and five isolates showed antagonistic activity against Sclerotium rolfsii. Screening of potential isolates for nitrogen fixing gene (nifH) showed only three isolates (MM3, MM6 and MRC11) possessed nifH gene. Salt tolerant Bacillus PGPR could be used as a bio-inoculant to enhance the crop growth under Tsunami affected soils.
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