UbiF is involved in acid stress tolerance and symbiotic competitiveness in Rhizobium favelukesii LPU83.

ABSTRACT: The acidity of soils significantly reduces the productivity of legumes mainly because of the detrimental effects of hydrogen ions on the legume plants, leading to the establishment of an inefficient symbiosis and poor biological nitrogen fixation. We recently reported the analysis of the fully sequenced genome of Rhizobium favelukesii LPU83, an alfalfa-nodulating rhizobium with a remarkable ability to grow, nodulate and compete in acidic conditions. To gain more insight into the genetic mechanisms leading to acid tolerance in R. favelukesii LPU83, we constructed a transposon mutant library and screened for mutants displaying a more acid-sensitive phenotype than the parental strain. We identified mutant Tn833 carrying a single-transposon insertion within LPU83_2531, an uncharacterized short

SUBMITTER: Martini MC 

PROVIDER: S-EPMC9433554 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature