THE ARSENICAL ATPASE EFFLUX PUMP MEDIATES TELLURITE RESISTANCE

被引：46

作者：

TURNER, RJ

HOU, YF

WEINER, JH

TAYLOR, DE

机构：

[1] UNIV ALBERTA,DEPT MED MICROBIOL & INFECT DIS,EDMONTON T6G 2H7,ALBERTA,CANADA

[2] UNIV ALBERTA,DEPT BIOCHEM,EDMONTON T6G 2H7,ALBERTA,CANADA

来源：

JOURNAL OF BACTERIOLOGY | 1992年 / 174卷 / 09期

关键词：

D O I：

10.1128/JB.174.9.3092-3094.1992

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

The ars operon of the resistance plasmid R773 was found to produce moderate levels of resistance to tellurite. A MIC of 64-mu-g of TeoO32- per ml was found for Escherichia coli cells harboring plasmids which contained all three of the structural genes (arsA, arsB, and arsC) of the anion-translocating ATPase. MICs specified by plasmids carrying only one or two structural elements or the cloning vector alone were 2 to 4-mu-g/ml. The rate of TeO32- uptake was found to be on the order of 55% less for cultures containing the resistance plasmids.

引用

页码：3092 / 3094

页数：3

共 22 条

[1]

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[2] SEPARATE RESISTANCES TO ARSENATE AND ARSENITE (ANTIMONATE) ENCODED BY THE ARSENICAL RESISTANCE OPERON OF R-FACTOR R773 [J].