Chang M T, Schink J, Shimaoka J, Doyle M P
J Clin Microbiol. 1984 Sep;20(3):589-91. doi: 10.1128/jcm.20.3.589-591.1984.
Magnesium oxalate agar was found to select against virulent types of Yersinia enterocolitica. Small colonies isolated from magnesium oxalate agar which were presumably virulent generally contained no detectable virulence-specific plasmids, did not agglutinate with virulence-specific antiserum, and exhibited various degrees of virulence in mice. Results indicate that the virulence potential of a Y. enterocolitica isolate cannot always be identified by these in vitro methods and suggest that virulence also involves other factors yet to be identified.
发现草酸镁琼脂对肠炎耶尔森氏菌的强毒株具有筛选作用。从草酸镁琼脂上分离出的小菌落大概是强毒株,通常不含可检测到的毒力特异性质粒,不与毒力特异性抗血清发生凝集反应,并且在小鼠中表现出不同程度的毒力。结果表明,肠炎耶尔森氏菌分离株的毒力潜力不能总是通过这些体外方法来鉴定,这表明毒力还涉及其他尚未确定的因素。