Concept information
Preferred term
Gravitropism
Type
-
mesh:Descriptor
Definition
- 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)
Broader concept
Allowable Qualifier(s)
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/JVR-SMSRH82T-R
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