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- Title
Gordonia sp.: a salt tolerant bacterial inoculant for growth promotion of pearl millet under saline soil conditions.
- Authors
Kayasth, Monika; Kumar, Varun; Gera, Rajesh
- Abstract
In the resent study, a diazotrophic bacterial isolate JPA2 having the ability to tolerate salinity (6 % NaCl) and plant growth-promoting features was isolated from rhizospheric soil of weed Chenopodium murale growing in saline soil of Pindara (EC 11.47 dS m), district Jind (Haryana). The nitrogen fixing ability of the isolate was confirmed by nifH gene amplification and acetylene reduction assay (38.9 nmol ethylene h mg protein). The potential of strain JPA2 to promote growth of pearl millet was investigated by inoculation experiment which showed significant increase in plant height (51.1, 39.9 and 28.8 %) and dry weight (55.9, 36.4 and 35.5 %) over uninoculated control plants at EC 0, 6, 8 dS m, respectively. The strain JPA2 was Gram +ve and identified as Gordonia sp. on the basis of partial 16S rRNA gene sequencing and biochemical characterization. It is concluded that salt tolerant diazotrophic Gordonia sp. can be considered as a beneficial microbe for agriculture in saline soils.
- Publication
3 Biotech, 2014, Vol 4, Issue 5, p553
- ISSN
2190-572X
- Publication type
Report
- DOI
10.1007/s13205-013-0178-5