Rhizobial adaptation to hosts, a new facet in the legume root-nodule symbiosis

ABSTRACT: Certain alpha- and beta-proteobacteria, the rhizobia, are able to infect legume roots, elicit root nodules, and live therein as endosymbiotic, nitrogen-fixing bacteroids. Host recognition and specificity are the results of consecutive programming events in bacteria and host plants in which important signaling molecules, e.g. plant flavonoids and rhizobial lipooligosaccharides, play key roles. Here, we introduce a new aspect of this symbiosis: the adaptive response to hosts. In contrast to host specificity, which determines early steps in bacteria-plant interaction, the adaptation to hosts refers to late events in mature bacteroids where specific genes are transcribed and translated that help the endosymbionts to meet the disparate environmental requirements imposed by the hosts in which th

ORGANISM(S): Macroptilium atropurpureum

SUBMITTER: Hubert Rehrauer 

PROVIDER: E-GEOD-18884 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress