The Exopolysaccharide Cepacian Plays a Role in the Establishment of the Paraburkholderia phymatum - Phaseolus vulgaris Symbiosis.

ABSTRACT: Paraburkholderia phymatum is a rhizobial strain that belongs to the beta-proteobacteria, a group known to form efficient nitrogen-fixing symbioses within root nodules of several legumes, including the agriculturally important common bean. The establishment of the symbiosis requires the exchange of rhizobial and plant signals such as lipochitooligosaccharides (Nod factors), polysaccharides, and flavonoids. Inspection of the genome of the competitive rhizobium P. phymatum revealed the presence of several polysaccharide biosynthetic gene clusters. In this study, we demonstrate that bceN, a gene encoding a GDP-D-mannose 4,6-dehydratase, which is involved in the production of the exopolysaccharide cepacian, an important component of biofilms produced by closely related oppo

SUBMITTER: Liu Y 

PROVIDER: S-EPMC7378592 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature