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[紫外线(250 - 334纳米)照射大肠杆菌细胞时光激活和非光激活损伤的形成谱]

[Spectrum of formation of photo- and non-photoreactivated damage in E. coli cells irradiated with UV light (250-334 nm)].

作者信息

Malinova I V, Miasnik M N

出版信息

Radiobiologiia. 1986 Sep-Oct;26(5):611-5.

PMID:3534937
Abstract

A relative contribution of photoreactivated (modified by visible light) and non-photoreactivated (modified by temperature) damages to UV-irradiated (250-334 nm) E. coli B cells was estimated. The contribution of damages modified by temperature to a lethal effect of UV-radiation was invariable within the range from 250 to 334 nm. The photoreactivation of E. coli B cells was also independent of lambda-inactivating UV-light within 250-313 nm, and its value exceeded that of the wild-type E. coli WP2 which did not vary by the mode of UV-damages repair. Moreover, in contrast to E. coli B. cells, the value of the photoreactivation of E. coli WP2 decreased, as lambda-inactivating UV-light increased from 250 to 313 nm.

摘要

估算了光活化(由可见光修饰)和非光活化(由温度修饰)损伤对紫外线照射(250 - 334纳米)的大肠杆菌B细胞的相对贡献。在250至334纳米范围内,由温度修饰的损伤对紫外线辐射致死效应的贡献是不变的。大肠杆菌B细胞的光复活作用在250 - 313纳米范围内也与λ灭活紫外线无关,并且其值超过了野生型大肠杆菌WP2,后者不会因紫外线损伤修复模式而变化。此外,与大肠杆菌B细胞相反,随着λ灭活紫外线从250纳米增加到313纳米,大肠杆菌WP2的光复活值下降。

相似文献

1
[Spectrum of formation of photo- and non-photoreactivated damage in E. coli cells irradiated with UV light (250-334 nm)].[紫外线(250 - 334纳米)照射大肠杆菌细胞时光激活和非光激活损伤的形成谱]
Radiobiologiia. 1986 Sep-Oct;26(5):611-5.
2
[Combined effect of photoreactivation and temperature on the survival of cells from E. coli B, irradiated with short-wave UV light].[光复活作用和温度对经短波紫外线照射的大肠杆菌B细胞存活率的联合影响]
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