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Article

The symbiotic defect of Rhizobium meliloti exopolysaccharide mutants is suppressed by lpsZ+, a gene involved in lipopolysaccharide biosynthesis.

Journal of bacteriology - 1 May 1990

Williams M N, Hollingsworth R I, Klein S, Signer E R

Abstract excerpt

exo mutants of Rhizobium meliloti SU47, which fail to secrete acidic extracellular polysaccharide (EPS), induce Fix- nodules on alfalfa. However, mutants of R. meliloti Rm41 carrying the same exo lesions induce normal Fix+ nodules. We show that such induction is due to a gene from strain Rm41, which we call lpsZ+, that is missing in strain SU47. lpsZ+ does not restore EPS production but instead alters the...

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Identifiers

PMID: 2158975
DOI: 10.1128/jb.172.5.2622-2632.1990
PMCID: PMC208906

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The symbiotic defect of Rhizobium meliloti exopolysaccharide mutants is suppressed by lpsZ+, a gene involved in lipopolysaccharide biosynthesis.PMID 2158975Read ↗

Rhizobium meliloti chromosomal loci required for suppression of exopolysaccharide mutations by lipopolysaccharide.Semantic proximity Read ↗

Exogenous suppression of the symbiotic deficiencies of Rhizobium meliloti exo mutants.Semantic proximity Read ↗

Genetic analyses of Rhizobium meliloti exopolysaccharides.Semantic proximity Read ↗

Rhizobial Secretion of Truncated Exopolysaccharides Severely Impairs the Mesorhizobium-Lotus Symbiosis.Semantic proximity Read ↗

The regulation of exopolysaccharide production is important at two levels of nodule development in Rhizobium meliloti.Semantic proximity Read ↗

Rhizobium meliloti lipopolysaccharide and exopolysaccharide can have the same function in the plant-bacterium interaction.Semantic proximity Read ↗

Suppression of the Fix- phenotype of Rhizobium meliloti exoB mutants by lpsZ is correlated to a modified expression of the K polysaccharide.Semantic proximity Read ↗

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Conditional requirement for exopolysaccharide in the Mesorhizobium-Lotus symbiosis.Semantic proximity Read ↗

The exoD gene of Rhizobium meliloti encodes a novel function needed for alfalfa nodule invasion.Semantic proximity Read ↗

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