Canadian Medical Guide > Biological Sciences > Biological Phenomena, Cell Phenomena, and Immunity > Plant Physiology > Tropism > Phototropism Terms and Definitions




Phototropism

Medical Definition: 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)
Guide Notes: directional growth of a plant in response to light
Also Called: Heliotropism
Previously Indexed: Plants (1966-1994)

Phototropism Medical Definitions and Terms

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