Survey of Plant Drought-Resistance Promoting Bacteria from Populus euphratica Tree Living in Arid Area.

ABSTRACT: Two hundred and thirty-two bacterial strains were isolated from the rhizospheric soil of Populus euphratica which is the dominant tree living in extreme arid regions in northwest China. Some strains with plant growth-promoting bacteria related metabolic characteristics were able to promote drought resistance in plants after inoculation. Ten strains with the greatest effects increased the dry weight of wheat shoots from 0.5 to 34.4 %, and the surface area of the root systems from 12.56 to 212.17 % compared to the control after drought treatment whereas no obvious promoting effect was observed in normal water conditions. These 10 strains were identified to be of the genera Pseudomonas, Bacillus, Stenotrophomonas and Serratia by 16S rRNA (rrs) gene sequence alignment. Among these strains, Ser

SUBMITTER: Wang S 

PROVIDER: S-EPMC4186926 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature