Video of real bacterial chemotaxis|
Jul 4, 2010, 7:02p - Science
(This is the 4th in a 3-part series on the biology of bacterial chemotaxis. Consider it a video bonus. Parts 1, 2, and 3 are also available.)
I finally found a video of bacteria chemotaxing, and I wanted to share it with you (so I could finally shut up about bacteria by reaching some sort of closure on the topic).
In the video, bacteria are chemotaxing to an attractant present in the center of the screen. If you look closely, you can see 2 individual bacteria labeled in red, moving to the center, overshooting, and then coming back.
You can compare the real bacteria's behavior to the results of my chemotaxis simulator (with linear adaptation turned on), as shown below. I think they're a pretty good match, at least at steady-state.
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