Rate of spontaneous reversal of flagellar direction of rotation

Range ~1 1/sec
Organism bacteria
Reference Elston TC, Oster G. Protein turbines. I: The bacterial flagellar motor. Biophys J. 1997 Aug73(2):703-21. p.703 left column top paragraphPubMed ID9251788
Comments "When the motors reverse their direction of rotation, the individual flagella fly apart, causing the bacterium to tumble (Macnab, 1977). When the flagella reverse again to their swimming mode, the bacterium's direction has been randomly reoriented. Normally, reversals occur spontaneously around 1/s. However, a bacterium can bias its random walk up concentration gradients of chemoattractants by adjusting its tumbling frequency (Berg, 1983)."
Entered by Uri M
ID 109848