Soluble fumarate reductase isoenzymes fromSaccharomyces cerevisiaeare required for anaerobic growth
Open Access
- 1 August 1998
- journal article
- Published by Oxford University Press (OUP) in FEMS Microbiology Letters
- Vol. 165 (1) , 111-116
- https://doi.org/10.1111/j.1574-6968.1998.tb13134.x
Abstract
In Saccharomyces cerevisiae, the cytosolic and promitochondrial isoenzymes of fumarate reductase are encoded by the FRDS and OSM1 genes, respectively. The product of the OSM1 gene is reported to be required for growth in hypertonic medium. Simultaneous disruption of the FRDS and OSM1 genes resulted in the inability of the yeasts to grow anaerobically on glucose as a carbon source, and disruption of the OSM1 gene caused poor growth under anaerobic conditions. However, the disruption of both the FRDS and/or OSM1 genes had no effect on aerobic growth or growth under hypertonic conditions. These results suggest that the fumarate reductase isoenzymes in Saccharomyces cerevisiae are essential for anaerobic growth but not for growth under hypertonic conditions.Keywords
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