Anderson D M
J Hyg (Lond). 1980 Oct;85(2):293-300. doi: 10.1017/s0022172400063336.
Sixteen strains of Salmonella typhimurium phage type 179 were referred to the National Health Institute, Wellington, New Zealand, from 1977 to 1979. This phage type had not been observed here before 1977. All strains were resistant to ampicillin, several were also resistant to tetracycline, and several were resistant to ampicillin, tetracycline, sulphafurazole and trimethoprim. All resistances could be transferred to Escherichia coli K 12. Plasmids from these strains and their transconjugants were characterized by agarose gel electrophoresis. It appears that resistance to sulphafurazole and trimethoprim is carried on a plasmid with a molecular weight of 5 . 2 Mdal and that resistance to ampicillin and tetracycline is carried on a plasmid with a molecular weight of approximately 60 Mdal.
1977年至1979年间，16株鼠伤寒沙门氏菌179型菌株被送往新西兰惠灵顿的国家卫生研究所。1977年以前在此地未曾观察到这种噬菌体类型。所有菌株对氨苄青霉素耐药，有几种还对四环素耐药，还有几种对氨苄青霉素、四环素、磺胺异恶唑和甲氧苄啶耐药。所有耐药性均可转移至大肠杆菌K12。通过琼脂糖凝胶电泳对这些菌株及其转接合子的质粒进行了鉴定。看来对磺胺异恶唑和甲氧苄啶的耐药性由一个分子量为5.2兆道尔顿的质粒携带，而对氨苄青霉素和四环素的耐药性由一个分子量约为60兆道尔顿的质粒携带。
