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The effect of acute salinity change on white spot syndrome (WSS) outbreaks in Fenneropenaeus chinensis
Liu, B; Yu, ZM; Song, XX; Guan, YQ; Jian, XF; He, JF
2006-03-31
发表期刊AQUACULTURE
ISSN0044-8486
卷号253期号:1-4页码:163-170
文章类型Article
摘要In order to observe the effect of salinity on disease resistance and white spot syndrome virus (WSSV) proliferation in Fenneropenaeus chinensis, shrimps with latent WSSV were subjected to two acute salinity changes from the original salinity of 22 ppt to 18 and 14 ppt in an hour, respectively. The total haemocyte count (THC) of the challenged group showed no evident change under salinity adjustments, but the phenoloxidase (PO) index declined significantly (P<0.05) corresponding to continuing acute salinity changes from the 24th to the 72nd hour. According to the WSSV load detected by quantitative real-time PCR method, it was found that WSSV carried by the challenged group and control group were significantly different (P<0.05); acute salinity change from 22 to 14 ppt led to the WSSV carried in the challenged group being significantly higher (P<0.05) than that of those surviving in 22 ppt, but salinity change from 22 to 18 ppt had no such effect. At the end of the 72-h experiment, the challenged group subjected to salinity change from 22 to 14 ppt had nearly 3 times the WSSV load as the control group with no salinity change. Therefore, salinity changes over a particular range could result in a decrease of immunocompetence and obvious WSSV proliferation in the shrimps, leading to white spot syndrome developing from a latent infection to an acute outbreak. (C) 2005 Elsevier B.V All rights reserved.; In order to observe the effect of salinity on disease resistance and white spot syndrome virus (WSSV) proliferation in Fenneropenaeus chinensis, shrimps with latent WSSV were subjected to two acute salinity changes from the original salinity of 22 ppt to 18 and 14 ppt in an hour, respectively. The total haemocyte count (THC) of the challenged group showed no evident change under salinity adjustments, but the phenoloxidase (PO) index declined significantly (P<0.05) corresponding to continuing acute salinity changes from the 24th to the 72nd hour. According to the WSSV load detected by quantitative real-time PCR method, it was found that WSSV carried by the challenged group and control group were significantly different (P<0.05); acute salinity change from 22 to 14 ppt led to the WSSV carried in the challenged group being significantly higher (P<0.05) than that of those surviving in 22 ppt, but salinity change from 22 to 18 ppt had no such effect. At the end of the 72-h experiment, the challenged group subjected to salinity change from 22 to 14 ppt had nearly 3 times the WSSV load as the control group with no salinity change. Therefore, salinity changes over a particular range could result in a decrease of immunocompetence and obvious WSSV proliferation in the shrimps, leading to white spot syndrome developing from a latent infection to an acute outbreak. (C) 2005 Elsevier B.V All rights reserved.
关键词Wssv Fenneropenaeus Chinensis Acute Salinity Change Real-time Pcr
学科领域Fisheries ; Marine & Freshwater Biology
DOI10.1016/j.aquaculture.2005.08.022
URL查看原文
收录类别SCI
语种英语
WOS记录号WOS:000236898700020
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被引频次:77[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/5442
专题海洋生态与环境科学重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Zhongshan Univ, Sch Life Sci, Guangzhou 510275, Peoples R China
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Liu, B,Yu, ZM,Song, XX,et al. The effect of acute salinity change on white spot syndrome (WSS) outbreaks in Fenneropenaeus chinensis[J]. AQUACULTURE,2006,253(1-4):163-170.
APA Liu, B,Yu, ZM,Song, XX,Guan, YQ,Jian, XF,&He, JF.(2006).The effect of acute salinity change on white spot syndrome (WSS) outbreaks in Fenneropenaeus chinensis.AQUACULTURE,253(1-4),163-170.
MLA Liu, B,et al."The effect of acute salinity change on white spot syndrome (WSS) outbreaks in Fenneropenaeus chinensis".AQUACULTURE 253.1-4(2006):163-170.
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