THE PARTICIPATION OF PHOSPHATE IN THE FORMATION OF A "CARRIER" FOR THE TRANSPORT OF MG++ AND MN++ IONS INTO YEAST CELLS

Author:

Jennings D. H.1,Hooper D. C.1,Rothstein A.1

Affiliation:

1. From the Division of Pharmacology, Department of Radiation Biology, The University of Rochester School of Medicine and Dentistry, Rochester, New York

Abstract

During the absorption of phosphate by yeast, the cells acquire the capacity to absorb Mn++ and Mg++, a capacity which is retained even after phosphate is no longer present in the medium. Cells pretreated with phosphate and then washed, slowly lose their ability to absorb Mn++, the rate of loss depending on the temperature and on the metabolic state. The fermentation of sugars induces a very rapid loss of absorptive capacity, whereas the respiration of ethyl alcohol, lactate, or pyruvate has little effect. Inhibitor studies with sodium acetate, redox dyes, and arsenate, reveal parallel effects on Mn++ absorption, and on phosphate absorption. It is concluded that the synthesis of a carrier for the transport of Mg++ and Mn++ involves a phosphorylation step closely coupled with reactions involved in the absorption of phosphate.

Publisher

Rockefeller University Press

Subject

Physiology

Cited by 39 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. A NOVEL AND PRACTICAL YEAST VITALITY METHOD BASED ON MAGNESIUM ION RELEASE;Journal of the Institute of Brewing;1997-03-04

2. The Roles of Magnesium in Biotechnology;Critical Reviews in Biotechnology;1994-01

3. Interactions of fungi with toxic metals;New Phytologist;1993-05

4. Ionic nutrition of yeast—physiological mechanisms involved and implications for biotechnology;Enzyme and Microbial Technology;1990-06

5. The uptake of arsenicals byCandida humicola;Applied Organometallic Chemistry;1990-03

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