| 释义 |
ˌphotoreactiˈvation Biol.
[f. photo- 1 + reactivation.]
The process whereby illumination of living matter with visible light can counteract the destructive effects of previous ultraviolet irradiation.
1949A. Kelner in Jrnl. Bacteriol. LVIII. 511 The effect of reactivating light will be referred to in this paper as photoreactivation. [Note.] The use of this term was suggested by Dr. Max Delbrück. 1962[see photoprotection]. 1966Adv. Radiation Biol. II. 21 These photoreactivations may result from DNA inactivations repairable by the mechanisms already described here. 1969A. C. Giese in F. Urbach Biol. Effects Ultraviolet Radiation 63 With protozoans..even UV radiation as well as blue-violet visible light are effective for photoreactivation, while yellow visible light during or after UV exposure is ineffective. 1975Nature 11 Sept. 133/1 Photoreactivation is a DNA repair process in which the photoreactivating enzyme (PRE) monomerises pyrimidine dimers induced by ultraviolet light. |