Effects of Thermal Stress on the Antioxidant Capacity, Blood Biochemistry, Intestinal Microbiota and Metabolomic Responses of Luciobarbus capito
文献类型： 外文期刊
作者： Guo, Kun 1 ; Zhang, Rui 1 ; Luo, Liang 1 ; Wang, Shihui 1 ; Xu, Wei 1 ; Zhao, Zhigang 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Key Open Lab Cold Water Fish Germplasm Resources &, Harbin 150070, Peoples R China
2.Chinese Acad Fishery Sci, Engn Technol Res Ctr Saline Alkaline Water Fisheri, Harbin 150070, Peoples R China
关键词： high temperature; biochemistry; intestinal microbial; metabolome; Luciobarbus capito
期刊名称：ANTIOXIDANTS （ 影响因子：7.0； 五年影响因子：7.3 ）
ISSN：
年卷期： 2023 年 12 卷 1 期
页码：
收录情况： SCI
摘要： The rise in water temperature caused by global warming is seriously threatening the development of aquatic animals. However, the physiological response mechanism behind the adverse effects of thermal conditions on L. capito remains unclear. In this study, we investigated the physiological responses of L. capito exposed to thermal stress via biochemical analyses and intestinal microbiota and liver LC-MS metabolomics. The results show that the superoxide dismutase (SOD) and catalase (CAT) activities significantly decrease, while the malondialdehyde (MDA) content, aspartate aminotransferase (AST), acid phosphatase (ACP), alanine aminotransferase (ALT), and albumin (ALB) activities, and glucose (Glu) level significantly increase. Obvious variations in the intestinal microbiota were observed after stress exposure, with increased levels of Proteobacteria and Bacteroidota and decreased levels of Firmicutes, Fusobacteriota, and Actinobacteriota, while levels of several genera of pathogenic bacteria increased. Liver metabolomic analysis showed that stress exposure disturbed metabolic processes, especially of amino acids and lipids. The results of this study indicated that thermal stress caused oxidative stress, disturbed blood biological functioning and intestinal microbiota balance, and damaged amino acids and lipids metabolism of liver in L. capito.
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