A Minimal Genetic Passkey to Unlock Many Legume Doors to Root Nodulation by Rhizobia.

ABSTRACT: On legume crops, formation of developmentally mature nodules is a prerequisite to efficient nitrogen fixation by populations of rhizobial bacteroids established inside nodule cells. Development of root nodules and concomitant microbial colonisation of plant cells are constrained by sets of recognition signals exchanged by infecting rhizobia and their legume hosts, with much of the specificity of symbiotic interactions being determined by the flavonoid cocktails released by legume roots and the strain-specific nodulation factors (NFs) secreted by rhizobia. Hence, much of Sinorhizobium fredii strain NGR234 symbiotic promiscuity was thought to stem from a family of >80 structurally diverse NFs and associated nodulation keys in the form of secreted effector proteins and rhamnose-rich su

SUBMITTER: Unay J 

PROVIDER: S-EPMC7290934 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature