ABSENCE OF EXCISION REPAIR IN NAEGLERIA GRUBERI

1 January 1976

journal article
research article
Published by Genetics Society of Japan in The Japanese Journal of Genetics

Vol. 51 (3) , 207-211
https://doi.org/10.1266/jjg.51.207

Abstract

UV radiation, selective endonuclease excision and the effect of caffeine administered to N. gruberi indicate that the excision repair mechanism present in bacteria and other organisms does not operate in this species. Sucrose sedimentation profiles of DNA between irradiated and non-irradiated control cells indicated no repair had taken place. Thus, the protozoan phylum appears heterogenous with respect to the repair process.

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