Persistence of Tetracapsuloides bryosalmonae (Myxozoa) in chronically infected brown trout Salmo trutta.
作者： A Abd Elfattah , G Kumar , H Soliman , M El Matbouli
DOI: 10.3354/DAO02768
关键词:
摘要: Proliferative kidney disease (PKD) is a widespread of farmed and wild salmonid populations in Europe North America, caused by the myxozoan parasite Tetracap- suloides bryosalmonae. Limited studies have been performed on epidemiological role spread played fish that survive infection with T. The aim present study was to evaluate persistence bryosalmonae developmental stages chron- ically infected brown trout Salmo trutta up 2 yr after initial exposure laboratory-infected colonies parasite's alternate host, bryozoan Fredericella sultana. Kidney, liver, spleen, intestine, brain, gills blood were sampled 24, 52, 78 104 wk post-exposure (wpe) tested for PCR immunohistochemistry (IHC). Cohabitation trials spe- cific pathogen free (SPF) F. sultana conducted test viability bryo - salmonae. detected DNA all tissue samples collected at 4 time points. Developmental demonstrated IHC most SPF chronically resulted suc- cessful transmission bryozoan. This verified salmonae their ability infect sul- tana wpe.
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