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Title: Biotechnological potential of a Halobacterium of family Bacillaceae
Authors: Tipre, Sukalp
Pindi, Pavan Kumar
Sharma, Shilpi
Keywords: α-Amylase;Bacillus sp.;Halotolerant;Lipase;Osmolyte;PGPR
Issue Date: Jan-2015
Publisher: NISCAIR-CSIR, India
Abstract: The study aimed at assessing the biotechnological potential of Bacillus sp. PU1T (JCM-16712, NBRC-106750, KCTC-13722), a halotolerant bacterium of the family Bacillaceae isolated from saline rhizosphere of Sesbania grandiflora from Mahabubnagar (16.4600° N, 77.5600° E), India, with respect to its plant growth promoting (PGP) properties, and as a source of halotolerant enzymes and intracellular osmolytes. PGP parameters assessed were indoleacetic acid production, phosphate solublization, ammonia production and siderophore production. The isolate was found to be positive for amylase and lipase production, phosphate solubilization and indoleacetic acid production, all under salt stress (ranging up to 6%), and showed growth on nitrogen free NFb medium suggesting ability of nitrogen fixation. Intracellular osmolytes, a unique feature of halotolerant bacteria, was also quantified under varying salt stresses. These results indicate that halophilic bacterium, Bacillus sp. PU1T, exhibits a multitude of properties ranging from PGP to enzyme production. Multiple beneficial traits displayed by the halophilic isolate makes it a potential candidate for commercial applicability, viz., as a biofertilizer helping enhanced plant growth under saline stresses, as a producer of a unique class of ‘halotolerant’ enzymes and as a producer of high-value compatible solutes (a property exhibited exclusively by halophilic organisms).
Page(s): 65-71
ISSN: 0975-0967 (Online); 0972-5849 (Print)
Appears in Collections:IJBT Vol.14(1) [January 2015]

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