Study and Application of Bacterial Mercury-resistance Mechanism and Evolution
- VernacularTitle:细菌抗汞分子机制与进化的研究及应用
- Author:
Dan-Dan CHEN
;
Jian-Qiang LIN
;
Xiang-Mei LIU
;
Jian-Qun LIN
;
Wang-Ming YAN
;
- Publication Type:Journal Article
- Keywords:
Mercury-resistant mechanism, Mercury-resistant evolution, Mercury-resistant application
- From:
Microbiology
1992;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
There exist a number of mercury-resistant bacterial in environment, Mer operon is involved in the resistant mechanism, MerRTPA of Mer operon encodes the proteins related to the regulation, transport and reduction of mercury ion, respectively. The toxic mercury ion is transported by MerTP from medium to cytoplasmic mercuric reductase, MerA, and deoxidized to non-toxic and volatile element mercury, Hg(0). Bacterial mercury-resistant system originated from ancient times, and evolved into the Mer operon with diversity by gene integration and insertion. Mercury-resistant bacteria highly specifically absorb mercury ion, and can be used in recovering the mercury-polluted environment as well as the genetic selective marker.
