Penaeus chinensis nearing a critical threshold of susceptibility to Decapod iridescent virus 1 (DIV1)
文献类型： 外文期刊
作者： Guo, Xiao-Meng 1 ; Wang, Guo-Hao 1 ; Chen, Xiao-Ling 5 ; Xing, Jing-Yi 1 ; Qiu, Liang 1 ; Yao, Jia-Yun 3 ; Huang, Jie 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, State Key Lab Mariculture Biobreeding & Sustainabl, Key Lab Maricultural Organism Dis Control,Minist A, Qingdao 266071, Peoples R China
2.Qingdao Marine Sci & Technol Ctr, Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266237, Shandong, Peoples R China
3.Minist Agr & Rural Affairs, Zhejiang Inst Freshwater Fisheries, Key Lab Hlth Freshwater Aquaculture, Key Lab Fish Hlth & Nutr Zhejiang Prov, Huzhou 313001, Peoples R China
4.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China
5.Rizhao Fishery Technol Extens Stn, Rizhao 276800, Peoples R China
6.Tianjin Agr Univ, Coll Aquaculture, Tianjin 300384, Peoples R China
关键词： Decapod iridescent virus 1; Susceptible species; Penaeus chinensis; Non-invasive challenge mimicking nature; transmission pathway
期刊名称：FISH & SHELLFISH IMMUNOLOGY （ 影响因子：3.9； 五年影响因子：4.2 ）
ISSN： 1050-4648
年卷期： 2025 年 165 卷
页码：
收录情况： SCI
摘要： This study delves into the susceptibility of Chinese shrimp, Penaeus chinensis, to Decapod iridescent virus 1 (DIV1), a pathogen of significant concern in crustacean aquaculture. Our research meticulously evaluated the infection potential of DIV1 through both invasive (intramuscular injection) and non-invasive (per os) experimental methodologies. The outcomes revealed that intramuscular injection effectively induced infection in P. chinensis, manifesting clinical signs and resulting in 100 % mortality within five days post-infection (dpi). In contrast, per os challenge resulted in a low viral load infection at 3 day post-infection (dpi), which did not persist beyond the 9 dpi, showing a late-stage clearance of iDIV1. These results were corroborated through molecular detection, histopathological examination, in situ DIG-labeling loop-mediated isothermal amplification (ISDL), and transmission electron microscopy (TEM). The study concludes that, while P. chinensis is not considered a susceptible host for DIV1, its susceptibility is nearing a critical threshold. These findings underscore the imperative for continuous virus surveillance and research into host susceptibility to preempt potential economic repercussions for the aquaculture industry.
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