The pathogenicity and biological features of Santee-Cooper Ranaviruses isolated from Chinese perch and snakehead fish
文献类型: 外文期刊
第一作者: Fu, Xiaozhe
作者: Fu, Xiaozhe;Lin, Qiang;Liu, Lihui;Liang, Hongru;Huang, Zhibin;Li, Ningqiu
作者机构:
关键词: Santee-Cooper Ranavirus;Pathogenicity;Siniperca chuatsi;Channa maculate;Viral inclusion body
期刊名称:MICROBIAL PATHOGENESIS ( 影响因子:3.738; 五年影响因子:3.663 )
ISSN: 0882-4010
年卷期: 2017 年 112 卷
页码:
收录情况: SCI
摘要: Ranavirus has become a noticeable threat to both farmed and natural populations of fish and amphibians. Herein, we reported that 3 strains of novel viruses, designated as ScRIV-GM-20150902, CmRIV-XT-20150917 and ScRIV-ZS-20151201, were isolated from diseased Chinese perch and snakehead fish in China. Efficient propagation of these isolates were determined in Chinese perch brain (CPB) cell line by the means of cytopathic effect observation, PCR amplification and electron microscopy observation. And their viral titers in CPB cells reached 10(8.13) TCID50 ml(-1), 10(771) TCID50 ml(-1) and 10(7.94) TCID50 ml(-1), respectively. While the challenge experiment results showed that 3 isolates resulted in 100% mortality of Chinese perch after virus infection. Electron microscopy analysis showed that two kinds of viral inclusion bodies (intracytoplasmic and intranuclear inclusion body) were observed in infected CPB cells. Sequence alignment and phylogenetic analysis of major capsid protein gene sequences of isolates revealed that these isolates belonged to the species Santee-Cooper Ranavirus.
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