Johnson E M, Snellings N J, Life C A, Baron L S
Infect Immun. 1974 Sep;10(3):669-71. doi: 10.1128/iai.10.3.669-671.1974.
Salmonella typhimurium hybrids expressing somatic antigen 9 after mating with either S. typhosa or S. enteritidis Hfr donors did not differ from their S. typhimurium parent with respect to the number of organisms required to produce death in mice inoculated intraperitoneally.
鼠伤寒沙门氏菌与伤寒沙门氏菌或肠炎沙门氏菌高频重组(Hfr)供体交配后表达体细胞抗原9的杂种菌,在腹腔接种小鼠中产生致死所需的菌数方面,与它们的鼠伤寒沙门氏菌亲本没有差异。