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Article

Light and redox control of photosynthesis gene expression in Bradyrhizobium: dual roles of two PpsR.

The Journal of biological chemistry - 22 Oct 2004

Jaubert Marianne, Zappa Sébastien, Fardoux Joël, Adriano Jean-Marc, Hannibal Laure, Elsen Sylvie, Lavergne Jérome, Verméglio Andre, Giraud Eric, Pignol David

Abstract excerpt

The two closely related bacteria Bradyrhizobium and Rhodopseudomonas palustris show an unusual mechanism of regulation of photosystem formation by light thanks to a bacteriophytochrome that antirepresses the regulator PpsR. In these two bacteria, we found out, unexpectedly, that two ppsR genes are present. We show that the two Bradyrhizobium PpsR proteins exert antagonistic effects in the regulation of...

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PMID: 15304477
DOI: 10.1074/jbc.M408039200

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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