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Immunological Relationship of the Fish‐Pathogenic Oomycete Saprolegnia parasitica to Other Oomycetes and Unrelated Fungi
Author(s) -
Bullis Robert A.,
Noga Edward J.,
Levy Michael G.
Publication year - 1990
Publication title -
journal of aquatic animal health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.507
H-Index - 52
eISSN - 1548-8667
pISSN - 0899-7659
DOI - 10.1577/1548-8667(1990)002<0223:irotfp>2.3.co;2
Subject(s) - oomycete , biology , microbiology and biotechnology , saprolegnia , pathogen , polyclonal antibodies , antigen , fish <actinopterygii> , immunology , fishery
Marine polyclonal antibodies produced against Saprolegnia parasitica ATCC 52719 (formerly known as S. diclina ; ATCC = American Type Culture Collection), a common oomycete pathogen of fishes, recognized most S. parasitica isolates in an indirect immunofluorescence assay. However, two of the six isolates had lower titers than did S. parasitica ATCC 52719. There was considerable cross‐reactivity among other taxa, which was inversely related to their taxonomic relationship to S. parasitica. Saprolegnia parasitica ATCC 52719 antigen collected from an experimentally inoculated dead fish produced the same titer as the cultured S. parasitica ATCC 52719 antigen. These findings suggest that, with further specificity refinements, these immunological assays may eventually be useful in identifying oomycete infections in clinical cases.