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Literature DB >> 2158975

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

M N Williams¹, R I Hollingsworth, S Klein, E R Signer.

Abstract

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 composition and structure of lipopolysaccharide. In both SU47 and Rm41, either lpsZ+ or exo+ is sufficient for normal nodulation. This suggests that in R. meliloti EPS and lipopolysaccharide can perform the same function in nodule development.

Entities: Chemical Species

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Year: 1990 PMID： 2158975 PMCID： PMC208906 DOI： 10.1128/jb.172.5.2622-2632.1990

Source DB: PubMed Journal: J Bacteriol ISSN： 0021-9193 Impact factor: 3.490

30 in total

1. Rhizobium meliloti mutants that fail to succinylate their calcofluor-binding exopolysaccharide are defective in nodule invasion.

Authors: J A Leigh; J W Reed; J F Hanks; A M Hirsch; G C Walker
Journal: Cell Date: 1987-11-20 Impact factor: 41.582

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Authors: M N Williams; S Klein; E R Signer
Journal: Appl Environ Microbiol Date: 1989-12 Impact factor: 4.792

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Authors: H J Zhan; S B Levery; C C Lee; J A Leigh
Journal: Proc Natl Acad Sci U S A Date: 1989-05 Impact factor: 11.205

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Authors: R E Hancock; P Reeves
Journal: J Bacteriol Date: 1976-07 Impact factor: 3.490

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Authors: J Glazebrook; G C Walker
Journal: Cell Date: 1989-02-24 Impact factor: 41.582

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Journal: J Bacteriol Date: 1988-09 Impact factor: 3.490

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Authors: R Diebold; K D Noel
Journal: J Bacteriol Date: 1989-09 Impact factor: 3.490

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Authors: J A Leigh; E R Signer; G C Walker
Journal: Proc Natl Acad Sci U S A Date: 1985-09 Impact factor: 11.205

10. Characterization of the lipopolysaccharide from a Rhizobium phaseoli mutant that is defective in infection thread development.

Authors: R W Carlson; S Kalembasa; D Turowski; P Pachori; K D Noel
Journal: J Bacteriol Date: 1987-11 Impact factor: 3.490

26 in total

1. Structural characterization of a flavonoid-inducible Pseudomonas aeruginosa A-band-like O antigen of Rhizobium sp. strain NGR234, required for the formation of nitrogen-fixing nodules.

Authors: Bradley L Reuhs; Biserka Relić; L Scott Forsberg; Corinne Marie; Tuula Ojanen-Reuhs; Samuel B Stephens; Chee-Hoong Wong; Saïd Jabbouri; William J Broughton
Journal: J Bacteriol Date: 2005-09 Impact factor: 3.490

2. ndvF, a novel locus located on megaplasmid pRmeSU47b (pEXO) of Rhizobium meliloti, is required for normal nodule development.

Authors: T C Charles; W Newcomb; T M Finan
Journal: J Bacteriol Date: 1991-07 Impact factor: 3.490

3. Analysis of a 1600-kilobase Rhizobium meliloti megaplasmid using defined deletions generated in vivo.

Authors: T C Charles; T M Finan
Journal: Genetics Date: 1991-01 Impact factor: 4.562

4. Population genomics of Sinorhizobium medicae based on low-coverage sequencing of sympatric isolates.

Authors: Xavier Bailly; Elisa Giuntini; M Connor Sexton; Ryan P J Lower; Peter W Harrison; Nitin Kumar; J Peter W Young
Journal: ISME J Date: 2011-05-12 Impact factor: 10.302

5. Rhizobium plasmids in bacteria-legume interactions.

Authors: A García-de Los Santos; S Brom; D Romero
Journal: World J Microbiol Biotechnol Date: 1996-03 Impact factor: 3.312

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

Authors: M N Williams; R I Hollingsworth; P M Brzoska; E R Signer
Journal: J Bacteriol Date: 1990-11 Impact factor: 3.490

7. Strain-ecotype specificity in Sinorhizobium meliloti-Medicago truncatula symbiosis is correlated to succinoglycan oligosaccharide structure.

Authors: Senay Simsek; Tuula Ojanen-Reuhs; Samuel B Stephens; Bradley L Reuhs
Journal: J Bacteriol Date: 2007-08-31 Impact factor: 3.490