Ontology Browser

long-day photoperiodism (GO:0048571)
Annotations: Rat: (1) Mouse: (0) Human: (1) Chinchilla: (1) Bonobo: (1) Dog: (1) Squirrel: (1)
Parent Terms Term With Siblings Child Terms
photoperiodism +     
entrainment of circadian clock by photoperiod  
long-day photoperiodism +   
Any process that results in a change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of detection of, or exposure to, a day length that exceeds a particular duration known as the 'critical day length'. The critical day length varies between species. Although the term long-day is used, most species actually respond to the duration of the night, so that the response will occur when a period of darkness falls short of the number of hours defined by 24 hours minus the critical day length.
photoperiodism, flowering +  
response to photoperiod, blue light 
response to photoperiod, red light 
short-day photoperiodism +   

Exact Synonyms: response to long-day ;   response to short-night ;   short-night photoperiodism
Related Synonyms: response to long-day photoperiod
Definition Sources: GOC:jid, GOC:pj, ISBN:0582015952, ISBN:0697037754, ISBN:0709408862

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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.