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急性病毒性鲫鳃出血病的病理变化
Authors
周莉
张奇亚
+5 more
方进
李涛
王俊
邓院生
陈中元
Publication date
1 January 2016
Publisher
Abstract
病毒性鲫(Carassius auratus)鳃出血病的突发流行可导致鱼高致死率,使中国部分养鱼场近些年受到重创。为了充分认识这种鱼病的发生发展过程,我们结合PCR、光学显微镜和透射电镜,对病鱼头肾等组织的病变及病毒分布情况进行了分析。注射自然发病鱼的组织滤液(病毒悬液),能使正常鲫感染,且出现与自然发病鲫相同的症状及高致死率;病原有典型疱疹病毒的形态特征(故称为鲫疱疹病毒,Ca HV)。经PCR扩增对已知鲤科疱疹病毒主要衣壳蛋白(MCP)基因进行检测,可确定Ca HV存在于被感染鱼的肝、脾、肾和头肾组织中。对组织病理变化及不同时序进行比较,结果表明Ca HV感染会引起鲫这些组织不同程度病变,而鳃和头肾的病理变化有显著时序相关性。在头肾细胞中还观察到大量Ca HV颗粒,预示鲫头肾是Ca HV侵染和复制的主要靶器官
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Institute of Hydrobiology, Chinese Academy Of Sciences
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oai:ir.ihb.ac.cn:342005/41405
Last time updated on 23/01/2021