Brief Communication abstract
Nature Cell Biology 9, 1098 - 1100 (2007)
Published online: 12 August 2007 | doi:10.1038/ncb1632
A concentration-dependent switch in the bacterial response to temperature
Hanna Salman1 & Albert Libchaber1
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.
- Center for Studies in Physics and Biology, The Rockefeller University, New York, New York 10065, USA
Correspondence to: Hanna Salman1 e-mail: salmanh@rockefeller.edu
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