PATHOGENICITY OF NONSTRESSED, HEAT-STRESSED, AND RESUSCITATED LISTERIA-MONOCYTOGENES 1A1-CELLS

被引：38

作者：

MCCARTHY, SA

机构：

来源：

APPLIED AND ENVIRONMENTAL MICROBIOLOGY | 1991年 / 57卷 / 08期

关键词：

D O I：

10.1128/AEM.57.8.2389-2391.1991

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The pathogenicity of nonstressed, heat-stressed, and resuscitated cells of Listeria monocytogenes 1A1 was assayed in immunocompromised mice. Cells were stressed by heating them at 56-degrees-C for 20 min and were resuscitated by incubation in tryptic soy broth at 25-degrees-C. A dose of 10(2) nonstressed and resuscitated cells per mouse was required for pathogenicity; a dose of 10(4) heat-stressed cells per mouse was considerably less pathogenic. Loss of hemolytic activity accompanied the decreased virulence.

引用

页码：2389 / 2391

页数：3