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Immune responses and expression of immune-related genes in swimming crab Portunus trituberculatus exposed to elevated ambient ammonia-N stress

文献类型： 外文期刊

作者： Yue, Feng 1 ; Pan, Luqing 1 ; Xie, Peng 1 ; Zheng, Debin 1 ; Li, Jian 2 ;

作者机构： 1.Ocean Univ China, Key Lab Mariculture, Minist Educ, Qingdao 266003, Peoples R China

2.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China

关键词： α_2-Macroglobulin;Ammonia-N;Anti-lipopolysaccharide factor;Crustin;Gene expression;Immune response;Lysozyme;Portunus trituberculatus

期刊名称：COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY （ 影响因子：2.32； 五年影响因子：2.465 ）

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收录情况： SCI

摘要： The effects of ammonia-N (0, 1, 5 and 20mgL~(-1)) on immune responses and immune-related gene expression were determined in swimming crab Portunus trituberculatus. The results showed that the THC and phagocytic activity of P. trituberculatus exposed to 1, 5 and 20mgL~(-1) ammonia-N decreased significantly during the experimental time. The antibacterial and bacteriolytic activities decreased significantly to the minimum at 6 or 12h respectively, then recovered to the control level except bacteriolytic activity exposed to 5 and 20mgL~(-1) ammonia-N α_2-macroglobulin (α_2-M) activity of all ammonia-N exposure groups decreased significantly, then recovered to the control level rapidly and tended to be stable after 12h. With crabs exposed to 20mgL~(-1) ammonia-N, the gene expression levels of crustin and lysozyme decreased significantly, then recovered to the control level after 12h. ALF expression also decreased significantly when exposed to 5 and 20mgL~(-1) ammonia-N, then remained stable and significantly lower than the control group after 6h. In contrast, α_2-M gene expression was induced by ammonia-N exposure significantly. The results suggest that high concentration ammonia-N exposure could reduce the crab immunity severely, and induce the short-term response in terms of immune gene regulation.

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