抗生素调控肠道微生物群以鉴定与禽类中空肠弯曲菌排斥相关的微生物。
Antibiotic manipulation of intestinal microbiota to identify microbes associated with Campylobacter jejuni exclusion in poultry.
机构信息
Pre-Harvest Food Safety and Enteric Diseases Research Unit, National Animal Disease Center, USDA, Agricultural Research Service, Ames, Iowa 50010, USA.
出版信息
Appl Environ Microbiol. 2010 Dec;76(24):8026-32. doi: 10.1128/AEM.00678-10. Epub 2010 Oct 15.
Abstract
The ability of various subsets of poultry intestinal microbiota to protect turkeys from colonization by Campylobacter jejuni was investigated. Community subsets were generated in vivo by inoculation of day-old poults with the cecal contents of a Campylobacter-free adult turkey, followed by treatment with one antimicrobial, either virginiamycin, enrofloxacin, neomycin, or vancomycin. The C. jejuni loads of the enrofloxacin-, neomycin-, and vancomycin-derived communities were decreased by 1 log, 2 logs, and 4 logs, respectively. Examination of the constituents of the derived communities via the array-based method oligonucleotide fingerprinting of rRNA genes detected a subtype of Megamonas hypermegale specific to the C. jejuni-suppressive treatments.
摘要
本研究旨在探究禽类肠道微生物群落的不同亚群对火鸡定植空肠弯曲杆菌的保护能力。通过向 1 日龄雏火鸡接种无菌成年火鸡盲肠内容物，在体内生成微生物亚群，然后用维吉尼亚霉素、恩诺沙星、新霉素或万古霉素进行处理。恩诺沙星、新霉素和万古霉素衍生群落中的空肠弯曲杆菌负荷分别减少了 1 个对数、2 个对数和 4 个对数。通过基于阵列的 rRNA 基因寡核苷酸指纹图谱方法对衍生群落的组成进行检测，发现了一种特定于抑制空肠弯曲杆菌处理的巨单胞菌超巨型亚种。
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