DAO 88:157-160 (2010) - DOI: https://doi.org/10.3354/dao02131
NOTE
Hyperthermia does not protect Kona stock Penaeus vannamei against infection by a Taura syndrome virus isolate from Belize
Isabelle Côté1,2,*, Donald V. Lightner1
ABSTRACT: This study evaluated the susceptibility of Penaeus vannamei, Kona stock-line, to infection by an isolate of Taura syndrome virus from Belize (TSV-BZ) under hyperthermic conditions (32°C). Shrimp exposed to the reference Hawaii-94 isolate of TSV (TSV-HI) showed resistance to infection at 32°C as demonstrated by the absence of mortality, histopathological lesions and decreased viral load by qPCR. However, at 32°C, shrimp were fully susceptible to the disease caused by TSV-BZ, exhibiting high mortality, severe histopathological lesions and increased viral load. This susceptibility of shrimp to TSV-BZ infection under hyperthermic conditions was independent of the route of infection (injection vs. per os) and the salinity of the water (11 vs. 28). TSV-BZ might be a temperature-permissible mutant of TSV.
KEY WORDS: Belize variant · Taura syndrome virus · Immune response · Hyperthemia · Penaeus vannamei · Shrimp
| Full text in pdf format | Cite this article as: Côté I, Lightner DV
(2010) Hyperthermia does not protect Kona stock Penaeus vannamei against infection by a Taura syndrome virus isolate from Belize. Dis Aquat Org 88:157-160. https://doi.org/10.3354/dao02131
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