Wing J P, Levine M, Smith H O
J Bacteriol. 1968 May;95(5):1828-34. doi: 10.1128/jb.95.5.1828-1834.1968.
A recombination-deficient (Rec(-)) ultraviolet-sensitive mutant of Salmonella typhimurium was isolated. The mutant grows more slowly than the wild-type strain and degrades its deoxyribonucleic acid extensively both during normal growth and after ultraviolet irradiation. Evidence is presented that a growing Rec(-) population consists of two types of cells, one which can divide and one which cannot.
分离出了鼠伤寒沙门氏菌的一种重组缺陷型(Rec(-))对紫外线敏感的突变体。该突变体的生长速度比野生型菌株慢,并且在正常生长期间以及紫外线照射后都会大量降解其脱氧核糖核酸。有证据表明,生长中的Rec(-)群体由两种类型的细胞组成,一种能够分裂,另一种则不能。