The directional growth of organisms in response to light. In plants, aerial shoots usually grow towards light. The phototropic response is thought to be controlled by auxin (= AUXINS), a plant growth substance. (From Concise Dictionary of Biology, 1990)
See also reference (FX) in Slovak
fototaxia
See also reference (FX) in English
Phototaxis
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subject heading
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openseadragon
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