Ida J. van der Klei

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We have studied methanol-utilization in a peroxisome-deficient (PER) mutant of Hansenula poly-morpha. In spite of the fact that in carbon-limited chemostat cultures under induced conditions the enzymes involved in methanol metabolism were present at wild-type (WT) levels, this mutant is unable to grow on meth-anol as a sole carbon and energy source.(More)
Extremely low specific growth rates (below 0.01 h(-1) ) represent a largely unexplored area of microbial physiology. In this study, anaerobic, glucose-limited retentostats were used to analyse physiological and genome-wide transcriptional responses of Saccharomyces cerevisiae to cultivation at near-zero specific growth rates. While quiescence is typically(More)
The fate of alcohol oxidase (AO) in chemostat-grown cells of Hansenula polymorpha, after its inactivation by KCN, was studied during subsequent cultivation of the cyanide-treated cells in fresh methanol media. Biochemical experiments showed that the cyanide-induced inactivation of AO was due to the release of flavin adenine dinucleotide (FAD) from the holo(More)
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