Sakurai M, Tohda H, Kumagai H, Giga-Hama Y. A distinct type of alcohol dehydrogenase, adh4+, complements ethanol fermentation in an adh1-deficient strain of Schizosaccharomyces pombe.
FEMS Yeast Res 2004;
4:649-54. [PMID:
15040954 DOI:
10.1016/j.femsyr.2003.12.009]
[Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2003] [Revised: 12/26/2003] [Accepted: 12/29/2003] [Indexed: 11/28/2022] Open
Abstract
In the fission yeast Schizosaccharomyces pombe, only one alcohol dehydrogenase gene, adh1(+), has been identified. To elucidate the influence of adh1(+) on ethanol fermentation, we constructed the adh1 null strain (delta adh1). The delta adh1 cells still produced ethanol and grew fermentatively as the wild-type cells. Both DNA microarray and RT-PCR analysis demonstrated that this ethanol production is caused by the enhanced expression of a Saccharomyces cerevisiae ADH4-like gene product (SPAC5H10.06C named adh4(+)). Since the strain lacking both adh1 and adh4 genes (delta adh1 delta adh4) showed non-fermentative retarded growth, only these two ADHs produce ethanol for fermentative growth. This is the first observation that a S. cerevisiae ADH4-like alcohol dehydrogenase functions in yeast ethanol fermentation.
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