Abstract
Small doses of ultraviolet light (UV, 265 mmu) cause Escherichia coli B to grow into long, multinucleate, nonseptate, filamentous cells. This UV-induced filament formation can be prevented by irradiating with photoprotecting light (335 mmu) prior to UV irradiation, and by irradiating with photoreactivating light (406 mmu), or by liquid holding treatment, after UV irradiation. It is concluded that UV-induced division inhibition in E. coli B is initially induced by repairable lesions in the deoxyribonucleic acid, probably pyrimidine dimers.
MeSH Terms
Cell Division/radiation effects
Culture Media
DNA, Bacterial/radiation effects
Escherichia coli/growth & development,radiation effects
Light
Radiation Effects
Ultraviolet Rays
Chemicals
Culture Media
DNA, Bacterial
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Kantor G J
Deering R A
References (16)
16 references, click to expand
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