Analysis of the yeast short-term Crabtree effect and its origin.

ABSTRACT: The short-term Crabtree effect is defined as the immediate occurrence of aerobic alcoholic fermentation in response to provision of a pulse of excess sugar to sugar-limited yeast cultures. Here we have characterized ten yeast species with a clearly defined phylogenetic relationship. Yeast species were cultivated under glucose-limited conditions, and we studied their general carbon metabolism in response to a glucose pulse. We generated an extensive collection of data on glucose and oxygen consumption, and ethanol and carbon dioxide generation. We conclude that the Pichia, Debaryomyces, Eremothecium and Kluyveromyces marxianus yeasts do not exhibit any significant ethanol formation, while Kluyveromyces lactis behaves as an intermediate yeast, and Lachancea, Torulaspora, Vanderwaltozyma and

SUBMITTER: Hagman A 

PROVIDER: S-EPMC4240471 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature