Nodule formation in soybeans by exopolysaccharide mutants of Rhizobium fredii USDA 191.

doi:10.1099/00221287-136-1-105

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Article

Nodule formation in soybeans by exopolysaccharide mutants of Rhizobium fredii USDA 191.

Journal of general microbiology - 1 Jan 1990

Ko Y H, Gayda R

Abstract excerpt

Production of exopolysaccharides by Rhizobium has been linked with efficient invasion and nodulation of leguminous plant roots by the bacteria. Exopolysaccharide-deficient (exo) mutants of Rhizobium fredii USDA 191 were isolated following Tn5-insertion mutagenesis. Five phenotypically unique exo...

Topics

Microscopy, Electron, Scanning
Mutation
Polysaccharides, Bacterial
Rhizobium
Glycine max
Symbiosis

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