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Article

The periplasmic regulator ExoR inhibits ExoS/ChvI two-component signalling in Sinorhizobium meliloti.

Molecular microbiology - 1 Sept 2008

Chen Esther J, Sabio Erich A, Long Sharon R

Abstract excerpt

Sinorhizobium meliloti requires ExoS/ChvI two-component signalling to establish a nitrogen-fixing symbiosis with legume hosts. The importance of ExoS/ChvI signalling in microbe-host interactions is underscored by the requirement of ExoS/ChvI orthologues for virulence of the related alpha-proteobacteria Agrobacterium tumefaciens and Brucella abortus. In S. meliloti, ExoS/ChvI is a key regulator of gene expression...

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Identifiers

PMID: 18631237
DOI: 10.1111/j.1365-2958.2008.06362.x
PMCID: PMC2652646

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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The periplasmic regulator ExoR inhibits ExoS/ChvI two-component signalling in Sinorhizobium meliloti.PMID 18631237Read ↗

A protease and a lipoprotein jointly modulate the conserved ExoR-ExoS-ChvI signaling pathway critical in <i>Sinorhizobium meliloti</i> for symbiosis with legume hostsSemantic proximity Read ↗

Novel Genes and Regulators That Influence Production of Cell Surface Exopolysaccharides in Sinorhizobium meliloti.Semantic proximity Read ↗

A Sinorhizobium meliloti and Agrobacterium tumefaciens ExoR ortholog is not crucial for Brucella abortus virulence.Semantic proximity Read ↗

Sinorhizobium meliloti 1021 loss-of-function deletion mutation in chvI and its phenotypic characteristics.Semantic proximity Read ↗

Agrobacterium tumefaciens exoR controls acid response genes and impacts exopolysaccharide synthesis, horizontal gene transfer, and virulence gene expression.Semantic proximity Read ↗

Multiple genetic controls on Rhizobium meliloti syrA, a regulator of exopolysaccharide abundance.Semantic proximity Read ↗

The novel genes emmABC are associated with exopolysaccharide production, motility, stress adaptation, and symbiosis in Sinorhizobium meliloti.Semantic proximity Read ↗

The exoR gene of Rhizobium meliloti affects RNA levels of other exo genes but lacks homology to known transcriptional regulators.Semantic proximity Read ↗

Rhizobium meliloti exoG and exoJ mutations affect the exoX-exoY system for modulation of exopolysaccharide production.Semantic proximity Read ↗

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

Analysis of the Rhizobium meliloti genes exoU, exoV, exoW, exoT, and exoI involved in exopolysaccharide biosynthesis and nodule invasion: exoU and exoW probably encode glucosyltransferases.Semantic proximity Read ↗

The eff-482 locus of Sinorhizobium meliloti CXM1-105 that influences symbiotic effectiveness consists of three genes encoding an endoglycanase, a transcriptional regulator and an adenylate cyclase.Semantic proximity Read ↗

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