Histopathology of Kabatana arthuri (Microspora) infection in sutchi catfish, Panagasius sutchi.
The microsporidian Kabatana arthuri (Lom, Dyková et Shaharom, 1990) induced severe regressive changes in trunk muscles of Pangasius sutchi (Fowler) from Thailand. Necrotic changes developed in muscle fibres around the developmental stages and on the periphery of giant aggregates of spores. The main feature of the host defence reaction was the phagocytic activity of macrophages. Inflammatory reaction was only exceptionally observed. Spore-laden macrophages were found in various tissues and organs; their infiltration in epidermis including its outermost layers may effectively enhance the spread of infection while the hosts still live.
Dyková
I
I
Institute of Parasitology, Academy of Sciences of the Czech Republic, Ceské Budejovice. iva@paru.cas.cz
Lom
J
J
D000818:Animals; D002397:Catfishes / Q000469:parasitology*; D005393:Fish Diseases / Q000473:pathology*; D005398:Fisheries; D016816:Microsporida; D016881:Microsporidiosis / Q000473:pathology / Q000662:veterinary*; D009132:Muscles / Q000473:pathology; D009336:Necrosis; D013785:Thailand