The Role of Two Linear β-Glucans Activated by c-di-GMP in Rhizobium etli CFN42.

ABSTRACT: Bacterial exopolysaccharides (EPS) have been implicated in a variety of functions that assist in bacterial survival, colonization, and host-microbe interactions. Among them, bacterial linear β-glucans are polysaccharides formed by D-glucose units linked by β-glycosidic bonds, which include curdlan, cellulose, and the new described Mixed Linkage β-Glucan (MLG). Bis-(3',5')-cyclic dimeric guanosine monophosphate (c-di-GMP) is a universal bacterial second messenger that usually promote EPS production. Here, we report Rhizobium etli as the first bacterium capable of producing cellulose and MLG. Significant amounts of these two β-glucans are not produced under free-living laboratory conditions, but their production is triggered upon elevation of intracellular c-di-GMP levels, both contri

SUBMITTER: Perez-Mendoza D 

PROVIDER: S-EPMC9495663 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature