Heat and UV light resistance of vegetative cells and spores of Bacillus subtilis Rec-mutants - PubMed (original) (raw)

Heat and UV light resistance of vegetative cells and spores of Bacillus subtilis Rec-mutants

J H Hanlin et al. J Bacteriol. 1985 Aug.

Abstract

The heat and UV light resistance of spores and vegetative cells of Bacillus subtilis BD170 (rec+) were greater than those of B. subtilis BD224 (recE4). Strain BD170 can repair DNA whereas BD224 is repair deficient due to the presence of the recE4 allele. Spores of a GSY Rec+ strain were more heat resistant than spores of GSY Rec- and Uvr- mutants. The overall level of heat and UV light resistance attained by spores may in part be determined by their ability to repair deoxyribonucleic acid after exposure to these two physical mutagens.

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