attaching-effacing;
cattle;
large intestine;
explant;
Escherichia coli O157 : H7;
D O I:
10.1111/j.1574-6968.2000.tb09068.x
中图分类号:
Q93 [微生物学];
学科分类号:
071005 ;
100705 ;
摘要:
Attaching-effacing (A/E) lesions following natural and experimental infection with Escherichia coli O157:H7 have been seen in neonatal and 3-4-month-old weanling but not older cattle. To test the hypothesis that the adult bovine large intestinal epithelium is resistant to the development of A/E lesions, colonic and rectal mucosal tissue explants from 18-month-old steers were inoculated with E. coli O157:H7 and examined. Epithelial cells of inoculated explants developed A/E lesions at the bacterial attachment sites, providing evidence that the large intestinal mucosal epithelium may be a site of infection that contributes to carriage of E. coli O157:H7 in adult cattle. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
机构:
USDA ARS, US Meat Anim Res Ctr, Anim Hlth Res Unit, Clay Ctr, NE 68933 USAUSDA ARS, US Meat Anim Res Ctr, Anim Hlth Res Unit, Clay Ctr, NE 68933 USA
Laegreid, WW
Elder, RO
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机构:
USDA ARS, US Meat Anim Res Ctr, Anim Hlth Res Unit, Clay Ctr, NE 68933 USAUSDA ARS, US Meat Anim Res Ctr, Anim Hlth Res Unit, Clay Ctr, NE 68933 USA
Elder, RO
Keen, JE
论文数: 0引用数: 0
h-index: 0
机构:
USDA ARS, US Meat Anim Res Ctr, Anim Hlth Res Unit, Clay Ctr, NE 68933 USAUSDA ARS, US Meat Anim Res Ctr, Anim Hlth Res Unit, Clay Ctr, NE 68933 USA
机构:
USDA ARS, US Meat Anim Res Ctr, Anim Hlth Res Unit, Clay Ctr, NE 68933 USAUSDA ARS, US Meat Anim Res Ctr, Anim Hlth Res Unit, Clay Ctr, NE 68933 USA
Laegreid, WW
Elder, RO
论文数: 0引用数: 0
h-index: 0
机构:
USDA ARS, US Meat Anim Res Ctr, Anim Hlth Res Unit, Clay Ctr, NE 68933 USAUSDA ARS, US Meat Anim Res Ctr, Anim Hlth Res Unit, Clay Ctr, NE 68933 USA
Elder, RO
Keen, JE
论文数: 0引用数: 0
h-index: 0
机构:
USDA ARS, US Meat Anim Res Ctr, Anim Hlth Res Unit, Clay Ctr, NE 68933 USAUSDA ARS, US Meat Anim Res Ctr, Anim Hlth Res Unit, Clay Ctr, NE 68933 USA