Bonami J R, Hasson K W, Mari J, Poulos B T, Lightner D V
UMR 219, CNRS-IFREMER, CP 80, Université Montpellier II, France.
J Gen Virol. 1997 Feb;78 ( Pt 2):313-9. doi: 10.1099/0022-1317-78-2-313.
The causative agent of Taura syndrome (TS) was recognized in 1994 to be viral in nature and tentatively classified as belonging to either the family Picornaviridae or Nodaviridae. The work reported here has led to a more definitive classification of this new penaeid virus. Located within the cytoplasm of infected cuticular epithelial cells of penaeid shrimp, the virus is a 31 to 32 nm icosahedral particle with a buoyant density of 1.338+/-0.001 g/ml. Three major (55, 40 and 24 kDa) and one minor (58 kDa) polypeptides constitute its proteinic capsid. Its genome contains a single molecule of ssRNA, which is polyadenylated at the 3' end and approximately 9 kb in length. Based on these characteristics, we believe that TS virus should be included in the family Picornaviridae. Ecuadorian and Hawaiian TS virus isolates were found to be identical in their biophysical, biochemical and biological characteristics, and should be considered as the same virus.
1994年，桃拉综合征（TS）的病原体被认定为病毒，初步归类于小核糖核酸病毒科或诺达病毒科。本文所报道的研究工作对这种新对虾病毒进行了更明确的分类。该病毒存在于对虾感染的表皮上皮细胞的细胞质中，是一种31至32纳米的二十面体颗粒，浮力密度为1.338±0.001克/毫升。其蛋白质衣壳由三种主要多肽（55、40和24千道尔顿）和一种次要多肽（58千道尔顿）组成。其基因组包含一个单链RNA分子，在3'端有多聚腺苷酸化，长度约为9千碱基对。基于这些特征，我们认为TS病毒应归入小核糖核酸病毒科。厄瓜多尔和夏威夷的TS病毒分离株在生物物理、生化和生物学特性上是相同的，应被视为同一病毒。
