Interplay of flg22-induced defence responses and nodulation in Lotus japonicus.

ABSTRACT: In this study the interplay between the symbiotic and defence signalling pathways in Lotus japonicus was investigated by comparing the responses to Mesorhizobium loti, the symbiotic partner of L. japonicus, and the elicitor flg22, a conserved peptide motif present in flagellar protein of a wide range of bacteria. It was found that defence and symbiotic pathways overlap in the interaction between L. japonicus and M. loti since similar responses were induced by the mutualistic bacteria and flg22. However, purified flagellin from M. loti did not induce any response in L. japonicus, which suggests the production of other elicitors by the symbiotic bacteria. Defence responses induced by flg22 caused inhibition of rhizobial infection and delay in nodule organogenesis, as demonstrated by the nega

SUBMITTER: Lopez-Gomez M 

PROVIDER: S-EPMC3245478 | biostudies-literature | 2012 Jan

REPOSITORIES: biostudies-literature