A mutant-based analysis of the establishment of Nod-independent symbiosis in the legume Aeschynomene evenia.

ABSTRACT: Intensive research on nitrogen-fixing symbiosis in two model legumes has uncovered the molecular mechanisms, whereby rhizobial Nod factors activate a plant symbiotic signaling pathway that controls infection and nodule organogenesis. In contrast, the so-called Nod-independent symbiosis found between Aeschynomene evenia and photosynthetic bradyrhizobia, which does not involve Nod factor recognition nor infection thread formation, is less well known. To gain knowledge on how Nod-independent symbiosis is established, we conducted a phenotypic and molecular characterization of A. evenia lines carrying mutations in different nodulation genes. Besides investigating the effect of the mutations on rhizobial symbiosis, we examined their consequences on mycorrhizal symbiosis and in nonsymbiotic cond

SUBMITTER: Quilbe J 

PROVIDER: S-EPMC9516736 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature