|本期目录/Table of Contents|

[1]王莹,卢葛锦,祝令伟,等.猪源致泻大肠埃希菌系统进化分群及致病型检测[J].江苏农业科学,2022,50(23):159-164.
 Wang Ying,et al.Phylogenetic cluster and pathotype detection of diarrheogenic Escherichia coli isolated from pig farms[J].Jiangsu Agricultural Sciences,2022,50(23):159-164.
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猪源致泻大肠埃希菌系统进化分群及致病型检测(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第50卷
期数:
2022年第23期
页码:
159-164
栏目:
畜牧兽医与水产蚕桑
出版日期:
2022-12-05

文章信息/Info

Title:
Phylogenetic cluster and pathotype detection of diarrheogenic Escherichia coli isolated from pig farms
作者:
王莹卢葛锦祝令伟关佳瑶纪雪孙洋郭学军
中国农业科学院长春兽医研究所/吉林省人兽共患病预防与控制重点实验室,吉林长春 130122
Author(s):
Wang Yinget al
关键词:
猪源致泄大肠埃希菌系统进化分群毒力基因致病型耐药性
Keywords:
-
分类号:
S852.61
DOI:
-
文献标志码:
A
摘要:
为明确长春地区某规模化猪场大肠埃希菌系统进化分群、毒力基因和致病型分布以及耐药情况。采用PCR对分离自哺乳仔猪、妊娠母猪、哺乳母猪和断奶仔猪粪便的129株大肠埃希菌进行系统进化分群的检测;采用多重荧光实时定量聚合酶链式反应检测菌株毒力基因,鉴定致泻大肠埃希菌(DEC)的致病型;并检测17种抗生素耐药情况。结果显示B1群为优势群(51.94%,67/129)。共检出DEC 47株,分离率为36.43%,其中肠道聚集性大肠埃希菌(EAEC)38株(29.46%,38/129),均携带astA基因,其中25株属于B1群,13株属于A群;肠道致病性大肠埃希菌(EPEC)6株(4.65%,6/129),均携带escV基因,其中5株属于B1群,1株属于B2群;产肠毒素大肠埃希菌(ETEC)1株(0.78%,1/129),携带stp基因,属于A群;肠道出血性大肠埃希菌(EHEC)1株(0.78%,1/129),携带stx2基因,属于B1群;EAEC-EPEC检测出1株(0.78%,1/129),毒力基因型为astA-escV,属于B1群;此次分离到的DEC未发现EIEC和DAEC这2种类型。经检测发现DEC的毒力基因主要为astA基因,以EAEC型为主,在断奶仔猪来源检测出1株EAEC-EPEC杂交型菌株,并且断奶仔猪中DEC分离率最高,应作为防控的重点。
Abstract:
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参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2022-03-03
基金项目:国家重点研发计划(编号:2016YFD0501305)。
作者简介:王莹(1995—),女,吉林洮南人,硕士研究生,主要从事人兽共患病原细菌致病机制和分子流行病研究。E-mail:1367290159@qq.com。
通信作者:郭学军,博士,研究员,主要从事细菌耐药性基因水平传递和分子流行病学研究。 E-mail:xuejung@yahoo.com。
更新日期/Last Update: 2022-12-05