Both overexpression and suppression of an Oryza sativa NB-LRR-like gene OsLSR result in autoactivation of immune response and thiamine accumulation.

ABSTRACT: Tight and accurate regulation of immunity and thiamine biosynthesis is critical for proper defence mechanisms and several primary metabolic cycles in plants. Although thiamine is known to enhance plant defence by priming, the mechanism by which thiamine biosynthesis responds to immune signals remains poorly understood. Here we identified a novel rice (Oryza sativa L.) NB-LRR gene via an insertion mutation, this mutant confesses a low seed setting phenotype and the corresponding genetic locus was named OsLSR (Low seed setting related). Comparing with wildtype plant, both overexpression and suppression of OsLSR lead to the autoactivation of the rice immune system and accumulation of thiamine, which result in a great fitness cost and yield penalty. Moreover, when fused with eGFP at their C te

SUBMITTER: Wang L 

PROVIDER: S-EPMC4823736 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature