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Azorhizobium caulinodans pyruvate dehydrogenase activity is dispensable for aerobic but required for microaerobic growth.

Microbiology (Reading, England) - 1 Aug 2001

Pauling David C, Lapointe Jerome P, Paris Carolyn M, Ludwig Robert A

Abstract excerpt

Azorhizobium caulinodans mutant 62004 carries a null allele of pdhB, encoding the E1beta subunit of pyruvate dehydrogenase, which converts pyruvate to acetyl-CoA. This pdhB mutant completely lacks pyruvate oxidation activities yet grows aerobically on C(4) dicarboxylates (succinate, L-malate) as sole energy source, albeit slowly, and displays pleiotropic growth defects consistent with physiological acetyl-CoA...

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PMID: 11496000
DOI: 10.1099/00221287-147-8-2233

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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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