Cargando…

Gordonia sp.: a salt tolerant bacterial inoculant for growth promotion of pearl millet under saline soil conditions

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(−1)), district Jind (Haryana). The nitroge...

Descripción completa

Detalles Bibliográficos
Autores principales: Kayasth, Monika, Kumar, Varun, Gera, Rajesh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4162897/
https://www.ncbi.nlm.nih.gov/pubmed/28324383
http://dx.doi.org/10.1007/s13205-013-0178-5
Descripción
Sumario: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(−1)), 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(−1) mg(−1) 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(−1), 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.