Paired Medicago receptors mediate broad-spectrum resistance to nodulation by Sinorhizobium meliloti carrying a species-specific gene.

ABSTRACT: Plants have evolved the ability to distinguish between symbiotic and pathogenic microbial signals. However, potentially cooperative plant-microbe interactions often abort due to incompatible signaling. The Nodulation Specificity 1 (NS1) locus in the legume Medicago truncatula blocks tissue invasion and root nodule induction by many strains of the nitrogen-fixing symbiont Sinorhizobium meliloti. Controlling this strain-specific nodulation blockade are two genes at the NS1 locus, designated NS1a and NS1b, which encode malectin-like leucine-rich repeat receptor kinases. Expression of NS1a and NS1b is induced upon inoculation by both compatible and incompatible Sinorhizobium strains and is dependent on host perception of bac

SUBMITTER: Liu J 

PROVIDER: S-EPMC9907072 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature