红螯螯虾虹彩病毒在两种螃蟹内的研究

Study of Cherax quadricarinatus iridescent virus in two crabs

最近报道从患病的红螯螯虾(Cherax quadricarinatus)中分离出一种新的虹彩病毒,被暂时命名为红螯螯虾虹彩病毒.它还能感染克氏原螯虾(Procambarus clarkii)和凡纳滨对虾(Litopenaeus vannamei),为了探究红螯螯虾虹彩病毒是否能够感染同属于甲壳纲、十足目的螃蟹.选取中华绒鳌蟹(Eriocheir sinensis)和粗腿厚纹蟹(Pachygrapsus crassipes)作为实验对象,应用实时荧光定量PCR技术和透射电子显微镜技术,结论证明了红螯螯虾虹彩病毒能够感染中华绒鳌蟹和粗腿厚纹蟹.推测其他蟹类也可能是其潜在的宿主,这暗示着红螯螯虾虹彩病毒对螃蟹的养殖是一种潜在的威胁.

It is reported recently a new iridovirus, isolated from sick Cherax quadricarinatus, is temporarily named as Cherax quadricarinatus iridescent virus （CQIV） , which has infected Procambarus clarkii and Litopenaeus vannamei. In order to explore the capability of infection on crabs of Crustacea, Decapoda by the virus, Used Eriocheir sinensis and Pachygrapsus crassipes as the experimental object on which the real-time fluorescence quantitative poly-merase chain reaction （PCR） and transmission electron microscopy technique is applied. It is concluded that the virus can infect Eriocheir sinensis and Pachygrapsus crassipes. We speculate that other crabs may also be the potential host and it implies that CQIV poses a potential threat to the cultured crab.