Ontology highlight
ABSTRACT:
SUBMITTER: Marcos
PROVIDER: S-EPMC3324032 | biostudies-literature | 2012 Mar
REPOSITORIES: biostudies-literature
Marcos Fu Henry C HC Powers Thomas R TR Stocker Roman R
Proceedings of the National Academy of Sciences of the United States of America 20120312 13
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 fis ...[more]