Nicolas P, Hussein Y, Heizmann P, Nigon V
Mol Gen Genet. 1980;178(3):567-72. doi: 10.1007/BF00337862.
Studies of nuclear and chloroplastic-DNA repair after ultraviolet irradiation of Euglena gracilis show that photoreactivation is very efficient at both the nuclear and chloroplastic level. Liquid-holding or split-dose experiments and treatment with caffeine reveal, furthermore, that dark-repair is very efficient in nuclear DNA but not in chloroplastic DNA (ctDNA). The possibility of a chloroplastic dark-repair of restricted efficiency is discussed. Determination of chloroplastic DNA content by reassociation kinetics indicates that an important degradation follows UV irradiation during liquid holding in the dark.
对纤细裸藻进行紫外线照射后细胞核和叶绿体DNA修复的研究表明，光复活在细胞核和叶绿体水平上都非常有效。此外，液体保持或分割剂量实验以及咖啡因处理表明，暗修复在细胞核DNA中非常有效，但在叶绿体DNA（ctDNA）中则不然。文中讨论了叶绿体暗修复效率受限的可能性。通过复性动力学测定叶绿体DNA含量表明，在黑暗中液体保持期间紫外线照射后会发生重要的降解。
