Journal
MICROBIAL ECOLOGY
Volume 58, Issue 1, Pages 63-74Publisher
SPRINGER
DOI: 10.1007/s00248-008-9468-6
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Funding
- Oliver Gatty Studentship
- University of Cambridge
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Previously published experimental work by other authors has shown that certain motile marine bacteria are able to track free-swimming algae by executing a zigzag path and steering toward the algae at each turn. Here, we propose that the apparent steering behaviour could be a hydrodynamic effect, whereby an algal cell's vorticity and strain-rate fields rotate a pursuing bacterial cell in the appropriate direction. Using simplified models for the bacterial and algal cells, we numerically compute the trajectory of a bacterial cell and demonstrate the plausibility of this hypothesis.
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