DNA topological change in the hyperthermophilic archaeon Pyrococcus abyssi exposed to low temperature

被引：10

作者：

Marguet, E ^{[1
]}

Zivanovic, Y ^{[1
]}

Forterre, P ^{[1
]}

机构：

[1] UNIV PARIS 11,CNRS,INST GENET & MICROBIOL,URA 1354,F-91405 ORSAY,FRANCE

来源：

FEMS MICROBIOLOGY LETTERS | 1996年 / 142卷 / 01期

关键词：

hyperthermophile; archaebacteria; DNA topology; DNA topoisomerases; plasmid supercoiling; DNA supercoiling; cold-shock; reverse gyrase;

D O I：

10.1111/j.1574-6968.1996.tb08403.x

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Topology of the plasmid pGT5 from the hyperthermophilic archaeon Pyrococcus abyssi has been studied as a function of growth phase and temperature. Plasmids isolated from cells in mid-exponential or stationary phases had similar linking number (Lk), whilst plasmids isolated from cells grown al 95 degrees C had a higher Lk than those isolated from cells grown at 80 degrees C. A significant reduction of Lk was observed when cells cultivated at 95 degrees C were slowly cooled at room temperature.

引用

页码：31 / 36

页数：6

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