| 白斑综合症杆状病毒致病性特征 |
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| 引用本文： | 何建国,周化民,江静波.白斑综合症杆状病毒致病性特征[J].热带海洋学报,1999,18(1):2. |
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| 作者姓名： | 何建国 周化民 江静波 |
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| 作者单位： | 中山大学生命科学学院生物系,广州,510275 |
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| 基金项目： | 国家自然科学基金!39670577，广东省科委“八五”攻关 |
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| 摘 要： | 对白斑综合症杆状病毒（ＷＳＢＶ）致病性特征的研究结果表明：ＷＳＢＶ的致病性与斑节对虾Ｐｅｎａｅｕｓｍｏｎｏｄｏｎ个体大小无关，ＷＳＢＶ的致病力与感染方式和病毒数量有关；在盐度为１４、温度为２８－３２℃的海水中，游离ＷＳＢＶ在４ｈ内失去感染活性；体长７ｃｍ的白斑综合症死亡斑节对虾，其携带的ＷＳＢＶ在５７ｈ失去感染活性；体长７ｃｍ死亡斑节对虾经２８℃空气干燥，其携带的ＷＳＢＶ在５０ｈ失去感染活性；ＷＳＢＶ不能通过体表感染健康斑节对虾，而斑节对虾摄食一定数量病毒才能导致感染；水不能作为游离ＷＳＢＶ的载体传播ＷＳＢＶ。
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| 关 键 词： | 白斑综合症杆状病毒 斑节对虾 致病性 |
INFECTIVITY OF WHITE SPOT SYNDROME BACULOVIRUS IN PENAEUS MONODON |
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| He Jianguo,Zhou Huaming,Jiang Jingbo.INFECTIVITY OF WHITE SPOT SYNDROME BACULOVIRUS IN PENAEUS MONODON[J].Journal of Tropical Oceanography,1999,18(1):2. |
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| Authors: | He Jianguo Zhou Huaming Jiang Jingbo |
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| Abstract: | The infectivity of white spot baculovirus (WSBV) in a shrimp, Penaeusmonodon, is studied by means of. feeding, immersion and sub-epidermal injection ofshrimp virus extract The results indicate that infection of the shrimp by WSBV ismainly through ingestion of food, and has no relation to the body length of theshrimp. Waterborne WSBV can infect healthy shrimp immersed in seawater only byfeeding. Injured shrimp are susceptible to infection. There is a direct relation betweeninjected virus amount and average death time of shrimp injected with (or immersed in)WSBV shrimp extract The average death time of the shrimp decreases as theconcentration of WSBV in seawater increases. Free WSBV in sea water may lose itsinfectivity after 4 hours. Similarly, air-dried WSBV will lose its infectivity whendrying time is more than 4 days. WSBV can not infect shrimp by epidermis infection.Therefore, it is preliminarily concluded that water is not a medium of free WSBVpropagating in shrimp. |
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| Keywords: | Penaeus monodon |
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