photoregulationn.
/ˌfəʊtə(ʊ)ˌrɛɡjᵿˈleɪʃn/, U.S. /ˌfoʊdoʊˌrɛɡ(j)əˈleɪʃ(ə)n/ Chiefly Biology.
The regulation of a biological or chemical process by means of the intensity, duration, etc., of light.
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photoregulation1968
1968 Science 27 Dec. 1487/1 (title) Photoregulation of an enzymic process by means of a light-sensitive ligand.
1970 Proc. National Acad. Sci. U.S.A. 66 850 A possible role in photoregulation is suggested for naturally occurring carotenoids.
2001 Science (Nexis) 2 Nov. 1108 These data suggest that phyB dominates the photoregulation of ARR4 expression, although participation of other photoreceptors, especially in white light, should not be excluded.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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