ACTION SPECTRA FOR PHOTOREACTIVATION OF ULTRAVIOLET-IRRADIATED ESCHERICHIA COLI AND STREPTOMYCES GRISEUS
ACTION SPECTRA FOR PHOTOREACTIVATION OF ULTRAVIOLET-IRRADIATED ESCHERICHIA COLI AND STREPTOMYCES GRISEUS
复制标题
紫外线照射大肠杆菌和灰色链霉菌的光活化作用光谱
DOI：
--
复制
发表时间：
1951
期刊：
影响因子：
--
通讯作者：
A. Kelner
中科院分区：
文献类型：
--
作者：
A. Kelner
Action spectra for photoreactivation (light-induced recovery from ultraviolet radiation injury) of Escherichia coli B/r and Streptomyces griseus ATCC 3326 were determined. The spectral region explored was 365 to 700 mµ. The action spectrum for S. griseus differed from that for E. coli, indicating that the chromophores absorbing reactivating energy in the two species were not the same. Reactivation of S. griseus occurred in the region 365 mµ (the shortest wave length studied) to about 500 mµ, with the most effective wave length lying near 436 mµ. This single sharp peak in the spectrum at 436 mµ suggested the Soret band typical of porphyrins. Reactivation of E. coli occurred in the region 365 to about 470 mµ, with the most active wave length lying near 375 mµ. The single, non-pronounced peak near 375 was probably not due to a Soret band, and the identification of the substance absorbing reactivating light in E. coli is uncertain. In neither species was the region 500 to 700 mµ active. The implications of these action spectra and their differences are discussed.
