Enhancing ethanol tolerance of a self-flocculating fusant of Schizosaccharomyces pombe and Saccharomyces cerevisiae by Mg2+ via reduction in plasma membrane permeability

被引:50
作者
Hu, CK
Bai, FW [1 ]
An, LJ
机构
[1] Dalian Univ Technol, Dept Biol Engn, Dalian 116024, Peoples R China
[2] Natl Huaqiao Univ, Dept Bioengn, Fujian 362011, Peoples R China
关键词
ethanol tolerance; magnesium ion; membrane permeability coefficient; viability;
D O I
10.1023/A:1024583503274
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Mg2+ at 3.5 mM increased the tolerance of a self-flocculating fusant of Schizosaccharomyces pombe and Saccharomyces cerevisiae to ethanol. After 9 h of exposure to 20% ( v/v) ethanol at 30 degreesC, all cells died whereas over 50% remained viable for the cells grown with Mg2+. The effect of Mg2+ is closely related to its ability to decrease plasma membrane permeability of cells subjected to ethanol stress.
引用
收藏
页码:1191 / 1194
页数:4
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