A concentration-dependent switch in the bacterial response to temperature
- 12 August 2007
- journal article
- Published by Springer Nature in Nature Cell Biology
- Vol. 9 (9), 1098-1100
- https://doi.org/10.1038/ncb1632
Abstract
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.Keywords
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