Open AccessBovine Escherichia coli of serotypes O55:H4 and O55:H21 which produce CNF2 express P fimbriae and Vir surface antigen, respectively
Author(s) -
Blanco Jorge,
Blanco Miguel,
González Enrique A.,
Garabal J.Ignacio,
Blanco Jesús E.,
Jansen Wim H.
Publication year - 1992
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1992.tb05305.x
Subject(s) - fimbria , escherichia coli , serotype , microbiology and biotechnology , enterobacteriaceae , pilus , biology , strain (injury) , antigen , chemistry , gene , biochemistry , immunology , anatomy
We have characterized the toxic and adhesive properties of Escherichia coli strains producing the second type of cytotoxic necrotizing factor (CNF2) and belonging to the classic enteropathogenic serogroup O55. Bovine CNF2 strains of serotype O55:H4 express P fimbriae as do pyelonephritic Escherichia coli that cause infections in humans. In contrast, strains of serotype O55:H21 which produce CNF2 from bovine origin possess the Vir surface antigen. One human strain of serotype O55:H‐ was positive for production of CNF2, but was negative for the two adhesive factors and for mannose‐resistant haemagglutination.