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Article

Role of the extracytoplasmic function sigma factor RpoE4 in oxidative and osmotic stress responses in Rhizobium etli.

Journal of bacteriology - 1 Jul 2009

Martínez-Salazar Jaime M, Salazar Emmanuel, Encarnación Sergio, Ramírez-Romero Miguel A, Rivera Javier

Abstract excerpt

The aims of this study were to functionally characterize and analyze the transcriptional regulation and transcriptome of the Rhizobium etli rpoE4 gene. An R. etli rpoE4 mutant was sensitive to oxidative, saline, and osmotic stresses. Using transcriptional fusions, we determined that RpoE4 controls its own transcription and that it is negatively regulated by rseF (regulator of sigma rpoE4; CH03274), which is...

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Identifiers

PMID: 19376852
DOI: 10.1128/JB.01626-08
PMCID: PMC2698498

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 6 Sept 2026. Manifest publication-graph-cohort-2026-09-06.1.

Source receipt: pubmed, retrieved 6 Sept 2026.

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