Glycolysis and respiration in yeasts: The Pasteur effect studied by mass spectrometry.

Lloyd, David ORCID: https://orcid.org/0000-0002-5656-0571, Kristensen, Bodil and Degn, Hans 1983. Glycolysis and respiration in yeasts: The Pasteur effect studied by mass spectrometry. Biochemical Journal 212 (3) , pp. 749-754. 10.1042/bj2120749

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Abstract

Simultaneous and continuous measurements of changes in CO2 and O2 concentrations in glucose-metabolizing yeast suspensions by mass spectrometry enabled a study of the Pasteur effect (aerobic inhibition of glycolysis) in Saccharomyces uvarum and Schizosaccharomyces pombe. A different control mechanism operates in Candida utilis to give a damped oscillation after the anaerobic-aerobic transition. The apparent Km values for respiration of the three yeasts were in the range 1.3-1.8 microM-O2. The apparent Km values for O2 of the Pasteur effect were 5 and 13 microM for catabolite-repressed and derepressed S. uvarum respectively and 7 microM for Sch. pombe. These results are discussed with respect to currently accepted mechanisms for the control of glycolysis.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Biosciences
ISSN:	0264-6021
Date of Acceptance:	10 March 1983
Last Modified:	26 Oct 2022 08:38
URI:	https://orca.cardiff.ac.uk/id/eprint/127944

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