Morotomi M, Ohno T, Mutai M
Yakult Central Institute for Microbiological Research, Tokyo, Japan.
Appl Environ Microbiol. 1988 May;54(5):1158-62. doi: 10.1128/aem.54.5.1158-1162.1988.
A dot blot hybridization procedure with 32P-labeled whole chromosomal DNA of the type strains as probes was developed as a rapid and simple method for identification of intestinal Bacteroides species. Bacterial cells were fixed onto membrane filters by slight suction, treated with 0.5 N NaOH, and hybridized with these probes. Of 65 Bacteroides strains isolated from 19 human fecal specimens, which were identified as B. fragilis, B. thetaiotaomicron, B. ovatus, B. caccae, B. uniformis, B. stercoris, B. vulgatus, B. distasonis, and B. merdae by conventional phenotypic characterization, 62 (95%) were correctly identified with this hybridization procedure.
开发了一种斑点印迹杂交程序,以32P标记的模式菌株全染色体DNA作为探针,作为鉴定肠道拟杆菌属物种的快速简便方法。通过轻微抽吸将细菌细胞固定在膜滤器上,用0.5N NaOH处理,并用这些探针进行杂交。从19份人类粪便标本中分离出65株拟杆菌菌株,通过传统表型特征鉴定为脆弱拟杆菌、多形拟杆菌、卵形拟杆菌、粪拟杆菌、解脲拟杆菌、粪便拟杆菌、普通拟杆菌、狄氏拟杆菌和屎拟杆菌,其中62株(95%)通过该杂交程序得到正确鉴定。