不同能量的紫外线辐射在细菌灭活过程中的相互作用。
Interactions between uv radiation of different energies in the inactivation of bacteria.
作者信息
Tyrrell R M, Peak M J
出版信息
J Bacteriol. 1978 Oct;136(1):437-40. doi: 10.1128/jb.136.1.437-440.1978.
Abstract
A strong lethal interaction was observed between various monochromatic wavelengths (254, 334, 365, and 405 nm) in the repair-proficient E. coli K-12 strain AB 1157, except in the case of preexposure to 405-nm radiation which resulted in a protection against the inactivation resulting from subsequent exposure to 365-or 254-nm radiations. The results may be tentatively explained by assuming two classes of DNA lesions and two classes of damage to repair (reversible and inrreversible) whose proportions vary according to wavelength.
摘要
在修复能力正常的大肠杆菌K-12菌株AB 1157中，观察到各种单色波长（254、334、365和405纳米）之间存在强烈的致死相互作用，但预先暴露于405纳米辐射的情况除外，这种预先暴露可使细胞免受随后暴露于365纳米或254纳米辐射所导致的失活。这些结果可以通过假设两类DNA损伤和两类修复损伤（可逆和不可逆）来初步解释，其比例根据波长而变化。
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