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GO:0009648 photoperiodismA change in state or activity of the organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of detection of, or exposure to, a period of light or dark of a given length, measured relative to a particular duration known as the 'critical day length'. The critical day length varies between species.
Term Information
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| Type | Synonym |
| exact | response to day length |
| exact | response to night length |
| exact | response to photoperiod |
| Database | ID |
| Wikipedia | Photoperiodism |
All GO terms displayed in this graph can be clicked to display term definitions and child (descendent) terms.
All GO terms displayed in this chart can be right-clicked to display term definitions and child (descendent) terms.
| GO:0008150 biological_process | |||||
![]() | GO:0050896 response to stimulus | ||||
![]() | ![]() | GO:0009628 response to abiotic stimulus | |||
![]() | ![]() | ![]() | GO:0009314 response to radiation | ||
![]() | ![]() | ![]() | ![]() | GO:0009416 response to light stimulus | |
![]() | ![]() | ![]() | ![]() | ![]() | GO:0009648 photoperiodism |
| Code | Relationship |
![]() | part of |
![]() | is a |
![]() | regulates |
![]() | +ve regulates |
![]() | -ve regulates |
| I | GO:0043153 entrainment of circadian clock by photoperiod |
| I | GO:0048571 long-day photoperiodism |
| I | GO:0048572 short-day photoperiodism |
| I | GO:0048573 photoperiodism, flowering |
| I | GO:0009906 response to photoperiod, blue light |
| I | GO:0009907 response to photoperiod, red light |
| Code | Relationship |
| P | part of |
| I | is a |
| Hostname | tomcat-7.ebi.ac.uk |
| Uptime | 16:38 12/10/2009 |
| Data version | 2009-11-25-04-02-21 |