Abstract
Human diarrheal isolates and enterotoxigenic strains of Aeromonas hydrophila are strong hemagglutinators with human blood cells. Sugar inhibition studies and yeast coagglutination tests with 11 selected strains revealed six different hemagglutination mechanisms for this species. These were characterized by inhibition by L-fucose, inhibition by D-galactose, inhibition by D-mannose, and two distinguishable mechanisms which were inhibited by either L-fucose or D-mannose, one being pilus mediated. Inhibition of hemagglutination by another strain required a combination of D-galactose and D-mannose. The hemagglutinating strains also attached well to human blood cells and buccal epithelial cells, with as many as 55% of the cells of a culture attaching successfully. In some cases the attachment to buccal epithelial cells appeared to involve mechanisms different from those used for hemagglutination.
MeSH Terms
Aeromonas/immunology,physiology,ultrastructure
Agglutination
Carbohydrates/pharmacology
Cheek
Fimbriae, Bacterial/ultrastructure
Hemagglutination/drug effects
Hemagglutinins/biosynthesis
Humans
Mouth Mucosa/cytology,microbiology
Saccharomyces cerevisiae/physiology
Chemicals
Carbohydrates
Hemagglutinins
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Atkinson H M
Trust T J
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