About The Medical Condition Gravitropism
Find the definition of the medical term Gravitropism. Gravitropism defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Gravitropism
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What's The Definition Of The Medical Condition Gravitropism?
The directional growth of organisms in response to gravity. In plants, the main root is positively gravitropic (growing downwards) and a main stem is negatively gravitropic (growing upwards), irrespective of the positions in which they are placed. Plant gravitropism is thought to be controlled by auxin (AUXINS), a plant growth substance. (From Concise Dictionary of Biology, 1990)
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