文献类型：期刊文献

英文题名：Survival and immune response of white shrimp Litopenaeus vannamei following single and concurrent infections with WSSV and Vibrio parahaemolyticus

作者：Pang, Huanying[1,2,3,6,7,8];Wang, Gang[1];Zhou, Shihui[1,2,3];Wang, Junlin[1];Zhao, Jichen[1];Hoare, Rowena[5];Monaghan, Sean J.[5];Wang, Ziling[1];Sun, Chengbo[1,4]

机构：[1]Guangdong Ocean Univ, Coll Fisheries, Zhanjiang 524025, Peoples R China;[2]Guangdong Prov Key Lab Pathogen Biol & Epidemiol, Zhanjiang 524025, Peoples R China;[3]Guangdong Key Lab Control Dis Aquat Econ Anim, Zhanjiang 524025, Peoples R China;[4]Trop Invertebrates Aquaculture Res Ctr Guangdong, Zhanjiang 524025, Peoples R China;[5]Univ Stirling, Inst Aquaculture, Stirling FK9 4LA, Scotland;[6]Chinese Acad Sci, Key Lab Expt Marine Biol, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China;[7]Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266071, Shandong, Peoples R China;[8]Guangdong Prov Engn Res Ctr Aquat Anim Hlth Asses, Shenzhen 518120, Peoples R China

年份：2019

卷号：92

起止页码：712

外文期刊名：FISH & SHELLFISH IMMUNOLOGY

收录：SCI-EXPANDED(收录号：WOS:000483634300077)、、Scopus(收录号：2-s2.0-85068261342)、WOS

基金：This work was funded by the National Key R & Development Program of China (2018YFD0900501), National Natural Science Foundation of China (No. 31402344), Natural Science Foundation of Guangdong Province (No. 2017A030313174).

语种：英文

外文关键词：Litopenaeus vannomei; Immune response; White spot syndrome virus (WSSV); Vibrio parahaemolyticus; Co-infection

外文摘要：The survival and immune responses of Litopenaeus vannamei were evaluated during white spot syndrome virus (WSSV) or Vibrio parahaemolyticus single and concurrent infections. The mortality, WSSV load, activities of 4 immune enzymes: acid phosphatase (ACP), alkaline phosphatase (AKP), peroxidase (POD) and superoxide dismutase (SOD), and the transcription of Evolutionarily Conserved Signaling Intermediate in Toll pathways of Lvannamei (LvECSIT) were quantified at 0, 3, 6, 12, 24, 48, 72 and 96 h post-infection (pi). The results showed: (i) the cumulative mortality of the co-infection group (WSSV and V. Parahaemolyticus 83%) was significantly lower than the WSSV infection group (97%) (P < 0.05) at 96 hpi; (ii) copies of WSSV in the co-infection group were significantly lower than that of the single infection group from 24 to 96 hpi (P < 0.05); (iii) ACP, AKP,POD and SOD activity in the gills of the co-infection group was higher than that of the WSSV group at12, 48 and 96 hpi (P < 0.05).The expression of LvECSIT mRNA in the co-infection group was significantly higher than in the WSSV infection group from 12 to 72 hpi (P < 0.05).The results indicate that proliferation of WSSV is inhibited by V.parahaemolyticus infection. In addition, infection with WSSV alone causes a significant reduction in some immune responses of shrimp than co-infection with WSSV and V.parahaemolyticus occurs at 26 C. Third, LvECSIT, an essential member of TLR signaling pathway might play a crucial role in shrimp defense against WSSV - Vibrio co-infection.