Bhatnagar D
School of Biochemistry, D.A. University, Indore.
Indian J Pathol Microbiol. 1992 Jul;35(3):247-50.
Ultraviolet irradiated E. Coli. B/r cells recover from UV damage when the cells are kept in dark due to dark repair mechanism. Photoprotection by illumination of the cells in near UV light prior to the exposure to UV light increases the capacity of the cells to induce L-arabinose isomerase synthesis in response to inducer, L-arabinose. The survival of the cells is dependent on the UV dose. The increased synthesis of L-arabinose isomerase after photoprotection is due to the amount of cyclic AMP in the cells.
紫外线照射的大肠杆菌B/r细胞在黑暗中时，由于暗修复机制可从紫外线损伤中恢复。在暴露于紫外线之前，用近紫外光照射细胞进行光保护，可提高细胞响应诱导剂L-阿拉伯糖诱导L-阿拉伯糖异构酶合成的能力。细胞的存活率取决于紫外线剂量。光保护后L-阿拉伯糖异构酶合成增加是由于细胞中环状AMP的量。
