Bacterial rheotaxis.

@article{Meotti2012BacterialR,
  title={Bacterial rheotaxis.},
  author={Camila Meotti and Henry Chien Fu and Thomas R. Powers and Roman Stocker},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2012},
  volume={109 13},
  pages={
          4780-5
        }
}
The motility of organisms is often directed in response to environmental stimuli. Rheotaxis is the directed movement resulting from fluid velocity gradients, long studied in fish, aquatic invertebrates, and spermatozoa. Using carefully controlled microfluidic flows, we show that rheotaxis also occurs in bacteria. Excellent quantitative agreement between experiments with Bacillus subtilis and a mathematical model reveals that bacterial rheotaxis is a purely physical phenomenon, in contrast to… CONTINUE READING
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