豫西地区市售鸭翅中单增李斯特菌毒力基因的检测

Abstract

Abstract: To analyze the virulence genes distribution of Listeria monocytogenes(L.monocytogenes, LM) isolated from commercial duck wings in Luoyang. 8 virulence genes (inlA, inlB, virR, mprF, dltA, dltB, dltC, dltD) from 11 LM isolated strains were detected using PCR method. The results showed that there existed 3 isolated strains with virulence gene-deleted. Detected ratioes for dltA, dltC and mprF were 90.9% (10/11), 81.8% (9/11) and 81.8% (9/11),respectively. The data indicated that these virulence genes were common for LM isolated from commercial duck wings in Luoyang, and some measures were taken to strengthen the surveillance of LM for the potential threat to commercial duck wings safety.

Key words: food-borne Listeria monocytogenes; virulence gene; distribution; the western region of Henan province; duck wings

CLC Number:

JIA Yan-yan, HE Lei, YU Chuan, YU Zu-hua, CHENG Xiang-chao, ZHANG Chun-jie, LI Yin-ju. Detection of Virulence Genes of Listeria monocytogenes Isolated from Commercial Duck Wings in the Western Region of Henan Province[J]. China Animal Husbandry & Veterinary Medicine, 2014, 41(11): 283-287.

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Detection of Virulence Genes of Listeria monocytogenes Isolated from Commercial Duck Wings in the Western Region of Henan Province

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