Type-B response regulator RRB12 regulates nodule formation in Lotus japonicus.

ABSTRACT:

Background

The mutualistic beneficial relationship between legume plants and rhizobia enables the growth of plants in nitrogen-limiting conditions. Rhizobia infect legumes through root hairs and trigger nodule organogenesis in the cortex. The plant hormone cytokinin plays a pivotal role in regulating both rhizobial infection and the initiation of nodule development. However, the mechanism used by the cytokinin output module to control symbiosis remains poorly documented.

Results

In this study, we identified a cytokinin signaling output component encoded by the Type-B RESPONSE REGULATOR (RRB) gene, LjRRB12, which is expressed in Lotus japonicus nodule primordia and young nodules. Disruption of LjRRB12 leads to a reduction in nodulation and to an increase in the number of infe

SUBMITTER: Cao J 

PROVIDER: S-EPMC11657288 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature