Formate-forming Fungal Catabolic Pathway to Supply Electrons to Nitrate Respiration

Seigo KUWAZAKI; Naoki TAKAYA; Akira NAKAMURA; Hirofumi SHOUN

doi:10.1271/bbb.67.937

Biochemistry & Molecular Biology Preliminary Communication

Formate-forming Fungal Catabolic Pathway to Supply Electrons to Nitrate Respiration

Seigo KUWAZAKI, Naoki TAKAYA, Akira NAKAMURA, Hirofumi SHOUN

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Keywords: pyruvate-formate lyase, formate dehydrogenase, nitrate reductase, denitrification, Fusarium oxysporum

JOURNAL FREE ACCESS

2003 Volume 67 Issue 4 Pages 937-939

DOI https://doi.org/10.1271/bbb.67.937

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Abstract

Pyruvate was catabolized anaerobically by resting cells of Fusarium oxysporum to form formate and acetate. Addition of nitrate decreased the accumulation of formate in the medium with concomitant formation of nitrite and N₂O. The results suggested a unique metabolic pathway that occurs in fungi mediated by pyruvate-formate lyase to supply electrons via formate to fungal denitrification.

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