The plant growth-promoting bacteria Azospirillum amazonense: genomic versatility and phytohormone pathway.

ABSTRACT: The rhizosphere bacterium Azospirillum amazonense associates with plant roots to promote plant growth. Variation in replicon numbers and rearrangements is common among Azospirillum strains, and characterization of these naturally occurring differences can improve our understanding of genome evolution. We performed an in silico comparative genomic analysis to understand the genomic plasticity of A. amazonense. The number of A. amazonense-specific coding sequences was similar when compared with the six closely related bacteria regarding belonging or not to the Azospirillum genus. Our results suggest that the versatile gene repertoire found in A. amazonense genome could have been acquired from distantly related bacteria from horizontal transfer. Furthermore, the identification of coding seque

SUBMITTER: Cecagno R 

PROVIDER: S-EPMC4383252 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature