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. 1990 Nov;172(11):6596–6598. doi: 10.1128/jb.172.11.6596-6598.1990

Rhizobium meliloti chromosomal loci required for suppression of exopolysaccharide mutations by lipopolysaccharide.

M N Williams 1, R I Hollingsworth 1, P M Brzoska 1, E R Signer 1
PMCID: PMC526852  PMID: 2228976

Abstract

Mutants of alfalfa symbiont Rhizobium meliloti SU47 that fail to make extracellular polysaccharide (exo mutants) induce the formation of nodules that are devoid of bacteria and consequently do not fix nitrogen. This Fix- phenotype can be suppressed by an R. meliloti Rm41 gene that affects lipopolysaccharide structure. Here we describe mutations preventing suppression that map at two new chromosomal loci, lpsY and lpsX, present in both strains. Two other lps mutations isolated previously from SU47 also prevented suppression.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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