Phototaxy

Definitions

  • Webster's Revised Unabridged Dictionary
    • n Phototaxy (Biol) The influence of light on the movements of low organisms, as various infusorians, the zoöspores of certain algæ, etc.; also, the tendency to follow definite directions of motion or assume definite positions under such influence. If the migration is toward the source of light, it is termed positive phototaxis; if away from the light, negative phototaxis.
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Etymology

Webster's Revised Unabridged Dictionary
NL. phototaxis,; photo-, + Gr. an arranging

Usage


In science:

The swimming direction of the cells can be controlled by stimulus gradients, a phenomenon known as taxis, such as chemotaxis, rheotaxis or phototaxis.
The random walk of a low-Reynolds-number swimmer
The imaged cells were located 30 to 60 micrometers from the glass walls. A red light filter was used in order to prevent phototaxis.
The random walk of a low-Reynolds-number swimmer
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