Summary: A monoclonal antibody (mAb) was raised against extracellular polysaccharides from after intrasplenic immunization of mice. An indirect ELISA and a dot-blot assay were developed with this mAb. The IgG antibody was found to be very specific for all mould species tested belonging to the order of Mucorales, except species belonging to the genus No cross-reactions were observed with other moulds or yeasts. The immunoreactivity of the polysaccharides of these moulds with this mAb is based on carbohydrate epitopes, in which fucose residues probably play an important role. The mAb may be suited for specific detection of species of the genera and species belonging to the group in food, and possibly for diagnosis of mucormycosis in humans.


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