Behavioral responses of Escherichia coli to changes in temperature caused by electric shock.
Behavioral responses of Escherichia coli to changes in temperature caused by electric shock.
复制标题
大肠杆菌对电击引起的温度变化的行为反应。
DOI：
10.1128/jb.175.18.5785-5790.1993
复制
发表时间：
1993
影响因子：
3.2
通讯作者：
Adler,J
中科院分区：
文献类型：
--
作者：
Shi,W;Lentz,MJ;Adler,J
研究了10(-2)M磷酸钾加10(-4)M EDTA钾溶液中大肠杆菌对电击的行为反应。当给予150 v /cm的持续250 ms的电击时，细菌首先只会跑，然后只会翻滚，最后又恢复到原来的跑步和翻滚。这种反应是由于电击引起的温度升高，即致热性，它是由趋化机制介导的。更严重的电击，150 V/cm, 550 ms，使细胞立即翻滚，然后它们又回到原来的运行和翻滚。这种反应的机制是未知的，因为与已知的热趋向性不同，它不需要趋化机制。
The behavioral response of Escherichia coli to electric shock in 10(-2) M potassium phosphate plus 10(-4) M potassium EDTA was studied. When presented with a 150-V/cm electric shock that lasted 250 ms, the bacteria at first exclusively ran, then exclusively tumbled, and finally returned to their original running and tumbling. This response is due to increased temperature caused by the electric shock, i.e., to thermotaxis, and it is mediated by the chemotaxis machinery. A more severe electric shock, 150 V/cm for 550 ms, caused cells to tumble immediately, and then they went back to their original running and tumbling. The mechanism of that response is unknown since, unlike known thermotaxis, it does not require the chemotaxis machinery.