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photoreactivation

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photoreactivation
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.1949 A. Kelner in Jrnl. Bacteriol. LVIII. 511 The effect of reactivating light will be referred to i... Oxford English Dictionary
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photoreactivate
photoreˈactivate, v. Biol. [f. photo- 1 + reactivate v.] trans. To repair by photoreactivation.1954 Biochim. & Biophys. Acta XV. 471 They [sc. the systems studied] are then photoreactivated and the reactivated complexes are again exposed to UV in order to determine their UV sensitivity. 1975 Nature ... Oxford English Dictionary
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Photolyase
The DNA repair mechanism involving photolyases is called photoreactivation. wikipedia.org
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Pyrimidine dimer
In most organisms (excluding placental mammals such as humans) they can be repaired by photoreactivation. Photoreactivation is a repair process in which photolyase enzymes reverse CPDs using photochemical reactions. wikipedia.org
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photoprotection
photoproˈtection Biol. [f. photo- 1 + protection.] The process whereby illumination of living matter with visible light can protect it from being harmed by subsequent ultraviolet irradiation.1958 J. Jagger in Bacteriol. Rev. XXII. 100/1 ‘Post-UV-photoprevention’ would describe completely what is her... Oxford English Dictionary
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Cyanophage
The DNA of cyanophages is susceptible to UV degradation but can be restored in host cells through a process called "photoreactivation". wikipedia.org
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Stromatolite
hamelinesis possesses genes that encode enzymes employed in the repair of UV induced damages in DNA by the processes of nucleotide excision repair and photoreactivation wikipedia.org
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Why bacteria produce light? After seeing this video I am curious to know why the free living bacteria produce light. What advantage will they have ? Or is it just an "unintentional" result of one of their pathways ?
Alternatively, quorum sensing may be needed for another role of bacterial bioluminescence, besides stimulation of photoreactivation.
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Bioluminescent bacteria
Bacterial bioluminescence has also been proposed to be a source of internal light in photoreactivation, a DNA repair process carried out by photolyase. wikipedia.org
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photo-
photo- (fəʊtəʊ) before a vowel properly phot- (but often in full form photo- in Eng. compounds), repr. Gr. ϕωτο-, combining form of ϕῶς, ϕωτ- light. 1. Words in which photo- simply denotes ‘light’. photoabˈsorbing ppl. a., that absorbs light; capable of absorbing a photon; photoabˈsorption, absorpti... Oxford English Dictionary
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光裂合酶
光裂合酶修复DNA的过程称为光学活作用（photoreactivation）。 由系统发生学来看，光裂合酶是一个相当古老的酵素，从细菌、真菌，到动物体内都有，且在植物体内尤为重要。人类等胎盘哺乳类体内则并无此酵素活性，而是使用另一种较无效率的核苷酸切除修复法来取代光裂合酶。 wikipedia.org
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Ultraviolet germicidal irradiation
This takes into consideration a phenomenon known as light and dark repair (photoreactivation and base excision repair, respectively), in which a cell can wikipedia.org
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Cell (biology)
nucleotide excision repair, DNA mismatch repair, non-homologous end joining of double-strand breaks, recombinational repair and light-dependent repair (photoreactivation wikipedia.org
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