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DYNAMIC CHANGES OF ANTIOXIDANT, IMMUNE FUNCTION, AND APOPTOSIS IN THE HEPATOPANCREAS OF HONG KONG OYSTER (CRASSOSTREA HONGKONGENSIS) UNDER HIGH SALINITY STRESS

文献类型： 外文期刊

作者： Fu, Shengli 1 ; Yao, Tuo 1 ; Lu, Jie 1 ; Ye, Lingtong 1 ;

作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Key Lab Aquat Prod Proc, Key Lab South China Sea Fishery Resources Exploita, Guangzhou 510300, Peoples R China

2.Sanya Trop Fisheries Res Inst, Sanya 572426, Peoples R China

3.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Trop Fisheries Res & Dev Ctr, Sanya 572018, Peoples R China

关键词： KEY WORDS: Crassostrea hongkongensis; salinity; hepatopancreas; apoptosis; immune function

期刊名称：JOURNAL OF SHELLFISH RESEARCH （ 影响因子：1.0； 五年影响因子：1.4 ）

ISSN： 0730-8000

年卷期： 2024 年 43 卷 3 期

页码：

收录情况： SCI

摘要： The hepatopancreas is an important tissue involved in various biological metabolism for molluscs, but its responses to salinity have not been well evaluated. In this study, the dynamic changes of antioxidant, immune function, and apoptosis in the hepatopancreas of Hong Kong oyster (Crassostrea hongkongensis) under high salinity (30 and 35) stress within a 7-day period were analyzed. The data showed that high salinity stress could lead to DNA damage in Hong Kong oyster hemocytes, resulting in an initial up-regulation followed by a decrease in the expression of enzyme-related genes (SOD, GPX) and immune-related genes (SABL, galectin, C3) in the hepatopancreas. Meanwhile, some apoptosis-related genes (Casp-2, P53), heat shock protein-related genes (HSP90), and osmotic pressure-related genes (NaK, CLC7) maintain high expression levels. Correlation analysis indicated that DNA damage showed a negative correlation with the mRNA expression of Casp-3, Casp-2, Casp-8, P53, SABL, galectin, C3, HSP90, HSP70, Na/K, and CLC7, with the negative correlation being particularly strong for the mRNA expression of HSP90 and Na/K. The results enhance the current understanding of the molecular mechanisms of salinity stress responses in Hong Kong oyster.

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