Paenibacillus strains with nitrogen fixation and multiple beneficial properties for promoting plant growth.

ABSTRACT: Paenibacillus is a large genus of Gram-positive, facultative anaerobic, endospore-forming bacteria. The genus Paenibacillus currently comprises more than 150 named species, approximately 20 of which have nitrogen-fixation ability. The N₂-fixing Paenibacillus strains have potential uses as a bacterial fertilizer in agriculture. In this study, 179 bacterial strains were isolated by using nitrogen-free medium after heating at 85 °C for 10 min from 69 soil samples collected from different plant rhizospheres in different areas. Of the 179 bacterial strains, 25 Paenibacillus strains had nifH gene encoding Fe protein of nitrogenase and showed nitrogenase activities. Of the 25 N₂-fixing Paenibacillus strains, 22 strains produced indol

SUBMITTER: Liu X 

PROVIDER: S-EPMC6761918 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature