Aeschynomene indica-Nodulating Rhizobia Lacking Nod Factor Synthesis Genes: Diversity and Evolution in Shandong Peninsula, China.

ABSTRACT: Aeschynomene indica is a semiaquatic legume that forms both stem and root nodules with rhizobia. Some A. indica rhizobia (AIRs) have been reported to nodulate the host using a Nod factor-independent pathway and possess photosynthetic abilities. To investigate the diversity and community structure of AIRs in China, a total of 300 rhizobial isolates were acquired from the root and stem nodules of A. indica grown at 4 sites in Shandong Peninsula, China. Nineteen representative strains were selected according to their recA phylogeny. With further classification in comparison with reference strains, 10 Bradyrhizobium genospecies were defined based on the 16S rRNA gene phylogeny and multilocus sequence analysis (MLSA) of housekeeping genes (HKGs) recA, <

SUBMITTER: Zhang Z 

PROVIDER: S-EPMC6821955 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature