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Modes of transmission of Loma salmonae (Microsporidia)

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dc.contributor.authorShaw, Ross W.
dc.contributor.authorKent, Michael L.
dc.contributor.authorAdamson, M. L.
dc.date.accessioned2020-10-06
dc.date.accessioned2022-05-31T01:15:27Z
dc.date.available2022-05-31T01:15:27Z
dc.date.issued1998
dc.description.abstractLoma salmonae (Putz, Hoffman and Dunbar, 1965) Morrison and Sprague, 1981 (Microsporidia) causes prominent gill disease in pen-reared chinook salmon Oncorhynchus tshawytscha in the Pacific Northwest. Transmission of the parasite was examined by exposing Pacific salmon Oncorhynchus spp. to infectious spores by various routes: per os, intraperitoneal, intramuscular, and intravascular injection, by cohabitation with infected fish, and by placement of spores directly on the gill. All exposure methods led to infections except placement of spores on the gill. Putative sporoplasms were visible in epithelial cells of the alimentary canal within 24 h of per os exposure. L. salmonae may initially infect alimentary epithelial cells and then migrate into the lamina propia to access the blood stream. Positive results obtained by intravascular injection suggest that autoinfection from spores of ruptured xenomas in the endothelium may also occur. The cohabitation experiment demonstrates that fish may become infected by spores released from live fish.
dc.description.urihttps://library.macewan.ca/full-record/cmedm/9722404
dc.identifier.citationShaw R.W., Kent M.L, and Adamson M.L. (1998). Modes of transmission of Loma salmonae (Microsporidia).Dis. Aquat. Org. 33:151-156.
dc.identifier.doihttps://doi.org/10.3354/dao033151
dc.identifier.urihttps://hdl.handle.net/20.500.14078/1786
dc.languageEnglish
dc.language.isoen
dc.rightsAll Rights Reserved
dc.subjectMicrosporidia
dc.subjectLoma salmonae
dc.subjecttransmission
dc.titleModes of transmission of Loma salmonae (Microsporidia)en
dc.typeArticle
dspace.entity.type

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