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Article

A putative ECF sigma factor gene, rpol, regulates siderophore production in Rhizobium leguminosarum.

Molecular plant-microbe interactions : MPMI - 1 Nov 1999

Yeoman K H, May A G, deLuca N G, Stuckey D B, Johnston A W

Abstract excerpt

A cloned Rhizobium leguminosarum gene, termed rpoI, when transferred to wild-type strains, caused overproduction of the siderophore vicibactin. An rpoI mutant was defective in Fe uptake but was unaffected in symbiotic N2 fixation. The RpoI gene product was similar in sequence to extra-cytoplasmic sigma factors of RNA polymerase. Transcription of rpoI was reduced in cells grown in medium that was replete with Fe.

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Source

Identifiers

PMID: 10550895
DOI: 10.1094/MPMI.1999.12.11.994

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 5 Sept 2026. Manifest publication-graph-cohort-2026-09-05.1.

Source receipt: pubmed, retrieved 5 Sept 2026.

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