Enhancement of Acetic Acid Tolerance in Saccharomyces cerevisiae by Overexpression of the HAA1 Gene, Encoding a Transcriptional Activator

被引:91
|
作者
Tanaka, Koichi [1 ]
Ishii, Yukari [1 ]
Ogawa, Jun [2 ]
Shima, Jun [1 ]
机构
[1] Kyoto Univ, Res Div Microbial Sci, Sakyo Ku, Kyoto, Japan
[2] Kyoto Univ, Grad Sch Agr, Div Appl Life Sci, Sakyo Ku, Kyoto, Japan
关键词
BIOETHANOL PRODUCTION; LACTIC-ACID; PROTEIN; CONTAMINANTS; FERMENTATION; RESISTANCE; EXPRESSION; GROWTH;
D O I
10.1128/AEM.02356-12
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
Haa1 is a transcriptional activator required for Saccharomyces cerevisiae adaptation to weak acids. Here we show that the constitutive HAA1-overexpressing strain acquired a higher level of acetic acid tolerance. Under conditions of acetic acid stress, the intracellular level of acetic acid was significantly lower in HAA1-overexpressing cells than in the wild-type cells.
引用
收藏
页码:8161 / 8163
页数:3
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