The modulation of leguminous plant ethylene levels by symbiotic rhizobia played a role in the evolution of the nodulation process.

ABSTRACT: Ethylene plays an important role in regulating the rhizobial nodulation process. Consequently, numerous strains of rhizobia possess the ability to decrease plant ethylene levels by the expression of the enzyme 1-aminocyclopropane-1-carboxylate (ACC) deaminase or via the production of rhizobitoxine, thus, leading to an increased ability to nodulate leguminous plants. Nevertheless, not much is understood about the prevalence of these ethylene modulation genes in different rhizobial groups nor their role in the evolution of the symbiotic process. In this work, we analyze the prevalence and evolution of the enzymes ACC deaminase (AcdS) and dihydrorhizobitoxine desaturase (RtxC) in 395 NodC⁺ genomes from different rhizobial strains isolated from a wide range of locations and plant ho

SUBMITTER: Nascimento FX 

PROVIDER: S-EPMC6304460 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature