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Pathogenicity of the causative agent of viral nervous necrosis disease in striped jack, Pseudocaranx dentex (Bloch & Schneider)
Author(s) -
ARIMOTO M.,
MORI K.,
NAKAI T.,
MUROGA K.,
FURUSAWA I.
Publication year - 1993
Publication title -
journal of fish diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 85
eISSN - 1365-2761
pISSN - 0140-7775
DOI - 10.1111/j.1365-2761.1993.tb00879.x
Subject(s) - biology , larva , pagrus major , necrosis , seriola quinqueradiata , zoology , virology , virus , pathogenicity , fishery , anatomy , veterinary medicine , microbiology and biotechnology , fish <actinopterygii> , ecology , genetics , medicine
. The pathogenicity of the agent causing viral nervous necrosis (VNN) of striped jack, Pseudocaranx dentex (Bloch & Schneider), was examined in striped jack and other selected marine fish species. Fish were exposed to purified striped jack nervous necrosis virus (SJNNV) (0·1–100 ng ml −1 ) or homogenates of diseased striped jack larvae. Striped jack larvae (3·5 and 4·4 mm total length) were susceptible to the virus, but juveniles (78 mm) were not. The viral antigens were detected by indirect ELISA and the characteristic pathological changes, i.e. vacuolation in the retina and brain, were reproduced in the affected larvae. The infection was also established in healthy larvae by cohabitation with the diseased larvae. Larvae of red sea bream, Pagrus major Temminck & Schlegel, yellowtail, Seriola quinqueradiata Temminck & Schlegel, and goldstriped amberjack, Seriola lalandi Valenciennes, were not susceptible to SJNNV.