Inaktivierungsversuche mit homozygoten Hefestämmen verschiedenen Ploidiegrades

Author:

Hempel Sigrid1,Laskowski Wolfgang1

Affiliation:

1. Aus dem Institut für Biophysik der Freien Universität Berlin

Abstract

A diploid Saccaromyces strain was treated with several doses of X-rays, UV and succinic acid peroxyde (BPO). The inactivation of the ability to form macroscopic colonies as well as the ability to form microcolonies of at least two cells to a few hundred cells has been compared with the inactivation of respiration and fermentation intensity. If the inactivation of macroscopic colony formation is taken as a measure of the effective dose applied, the formation of at least one daughter cell as well as respiration and fermentation intensity is reduced to approximately the same extent after BPO and X-ray treatment. In the latter case, however, much higher effective doses have to be applied and a distinct difference between respiration and fermentation sensitivity is observed. After UV-treatment the formation of at least one daughter cell is exceedingly more sensitive than the fermentation processes. The respiration processes behave most UV resistant. Possible reasons for the observed different relative sensitivities are discussed.

Publisher

Walter de Gruyter GmbH

Subject

General Chemistry

Cited by 10 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Effect of miconazole on Saccharomyces cerevisiae;Journal of Pharmacy and Pharmacology;1983-10

2. Necessity of Glycolysis for Recovery from Ultraviolet Killing of Saccharomyces cerevisiae;Radiation Research;1976-03

3. Photodynamic Action of Thiopyronine on the Respiration and Fermentation in Yeast;International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine;1976-01

4. Energy Metabolism in Yeast Cells after U.V.- and X-irradiation;International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine;1974-01

5. Energy Metabolism and Repair of U.V.-damage inSaccharomycesII. Calorimetric Measurements of the Glucose Metabolism of U.V.-sensitive Mutants;International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine;1974-01

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