Search on: PHOTOTROPISM 
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Descriptor English:   Phototropism 
Descriptor Spanish:   Fototropismo 
Descriptor Portuguese:   Fototropismo 
Synonyms English:   Heliotropism
Heliotropisms
Phototropisms  
Tree Number:   G07.345.249.845.700
G15.920.700
Definition English:   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) 
Indexing Annotation English:   distinguish from PHOTOTROPHIC PROCESSES
See Related English:   Phototaxis
 
History Note English:   95 
Allowable Qualifiers English:  
DE drug effects ES ethics
GE genetics IM immunology
PH physiology RE radiation effects
Record Number:   32088 
Unique Identifier:   D018524 

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