A fimbrial antigen mediating haemagglutination ofEscherichia colifrom children
نویسندگان
چکیده
منابع مشابه
Fimbrial haemagglutination by Neisseria gonorrhoeae.
The presence of filamentous appendages distinct from flagella was first discovered in electron microscope preparations by Anderson (1949) and Houwink and van Iterson (1950). Duguid, Smith, Dempster, and Edmunds (1955) confirmed the existence of these structures and suggested the name 'fimbriae' for them; others have called them 'cilia' (Pershina and Vasilieva, 1960) and 'pili' (Brinton, 1959). ...
متن کاملAggregative adherence fimbria II, a second fimbrial antigen mediating aggregative adherence in enteroaggregative Escherichia coli.
Enteroaggregative Escherichia coli (EAEC) has been implicated as an agent of pediatric diarrhea in the developing world. We have shown previously that EAEC adheres to HEp-2 cells by virtue of a plasmid-encoded fimbrial adhesin designated aggregative adherence fimbria I (AAF/I), the genes for which have been cloned and sequenced. However, not all EAEC strains express AAF/I. Using TnphoA mutagene...
متن کاملModified erythrocytes in indirect haemagglutination with Neisseria gonorrhoeae antigen.
Antigen prepared from gonococci by extraction with alkali has the ability to sensitize erythrocytes for agglutination or indirect haemolysis by corresponding antisera (Chanarin, 1954; Maeland, 1966; Thomas and Mennie, 1950). These indirect techniques have been used for the study of endotoxin preparations from gonococci. Endotoxins, however, require treatment with alkali before sensitization, ex...
متن کاملA haemagglutination and haemagglutination inhibition test for bluetongue virus.
Haemagglutination of bluetongue virus (BTV) was demonstrated for the first time by making use of a purified preparation of the virus. The reaction was found to be independent of variations in the pH, temperature, buffer system and origin of the erythrocytes used in the test. A haemagglutination inhibition test, subsequently developed, was demonstrated to be serotype specific. The storage of the...
متن کاملNew fimbrial gene cluster of S-fimbrial adhesin family.
Fimbrial adhesins that mediate attachment to host cells are produced by most virulent Escherichia coli isolates. These virulence factors play an important role in the initial stages of bacterial colonization and also in determination of the host and tissue specificity. Isolates belonging to serotype O78 are known to cause a large variety of clinical syndromes in farm animals and humans and have...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1982
ISSN: 0378-1097,1574-6968
DOI: 10.1111/j.1574-6968.1982.tb00243.x