Herpes-like virus infection causing mortality of cultured abalone Haliotis diversicolor supertexta in Taiwan
Herpes-like virus infection causing mortality of cultured abalone Haliotis diversicolor supertexta in Taiwan
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DOI：
10.3354/dao065023
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发表时间：
2005-06-14
影响因子：
1.4
通讯作者：
Chen, HC
中科院分区：
文献类型：
--
作者：
Chang, PH;Kuo, ST;Chen, HC
台湾首次证实一种疱疹样病毒与九孔鲍的高死亡率有关。濒死鲍的组织学研究表明，神经系统是主要的靶组织。病变特征为组织坏死伴血细胞浸润。电子显微镜检查显示变性的脑神经节细胞内有病毒颗粒。病毒呈六边形，直径约100 nm，有一层外壳。一些病毒颗粒含有致密的类核，而另一些则是空的。病毒颗粒的超微结构和形态发生与描述的来自牡蛎Crassostrea virginica的疱疹病毒一致。用内脏器官和肌肉的上清液进行感染实验，肌肉注射和水浴处理的死亡率均为100%。
A herpes-like virus is demonstrated for the first time to be associated with high mortality rates in maricultured abalone Haliotis diversicolor supertexta in Taiwan. Histopathology of moribund abalone indicated that the nerve system was the primary target tissue. The lesions were characterised by tissue necrosis accompanied with infiltration of haemocytes. Electron microscopic examination demonstrated viral particles within the degenerated cerebral ganglion cells. The viruses were hexagonal, approximately 100 nm in diameter and had a single coat. Some viral particles contained a dense nucleoid, while others were empty. The ultrastructure and morphogenesis of the virus particles were consistent with those of the herpesvirus described from the oyster Crassostrea virginica. Experimental infection using supernatant collected from minced visceral organs and muscle of moribund abalone induced 100 % mortality through both intramuscular injection and bath treatments.