Article
Induction of the second exopolysaccharide (EPSb) in Rhizobium meliloti SU47 by low phosphate concentrations.
Journal of bacteriology - 1 Nov 1991
Zhan H J, Lee C C, Leigh J A
Abstract excerpt
In previous work, Rhizobium meliloti SU47 produced its alternative exopolysaccharide (EPSb [also called EPS II]) only in strains that were genetically altered to activate EPSb synthesis. Here we report that EPSb synthesis is not entirely cryptic but occurred under conditions of limiting phosphate. This was shown in several different exo mutants that are blocked in the synthesis of the normal exopolysaccharide,...
Topics
- Gene Expression Regulation, Bacterial
- Genes, Bacterial
- Genotype
- Mutation
- Phosphates
- Plasmids
- Polysaccharides, Bacterial
- Sinorhizobium meliloti