A concentration-dependent switch in the bacterial response to temperature

被引：62
|
作者：
Salman, Hanna [1 ]
Libchaber, Albert [1 ]
机构：
[1] Rockefeller Univ, Ctr Studies Phys & Biol, New York, NY 10065 USA
来源：
NATURE CELL BIOLOGY | 2007年 / 9卷 / 09期
关键词：
D O I：
10.1038/ncb1632
中图分类号：
Q2 [细胞生物学];
学科分类号：
071009 ; 090102 ;
摘要：
We observed that bacteria grown below a critical concentration, in batch-mode cultures, swim towards warm regions when subjected to a temperature gradient. above that concentration, they swim towards colder regions. our findings indicate that the secreted intercellular signal, glycine, mediates this switch through methylation of Tsr receptors. at high bacterial concentration, the switch is reinforced by an inversion of the Tar/Tsr expression ratio.
引用
收藏
页码：1098 / U78
页数：7
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