Metabolism responses in the intestine of Oreochromis mossambicus exposed to salinity, alkalinity and salt-alkalinity stress using LC-MS/MS-based metabolomics

文献类型： 外文期刊

第一作者： Su, Huanhuan

作者： Su, Huanhuan;Li, Yaya;Su, Huanhuan;Li, Yaya;Ma, Dongmei;Fan, Jiajia;Zhong, Zaixuan;Zhu, Huaping;Zhu, Huaping

作者机构：

关键词： Metabolomics; Intestine; Oreochromis mossambicus; Osmotic stress

期刊名称：COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS （ 影响因子：3.0； 五年影响因子：3.2 ）

ISSN： 1744-117X

年卷期： 2023 年 45 卷

页码：

收录情况： SCI

摘要： Multiple abiotic stresses are imposed on fish as a result of unprecedented changes in temperature and precipi-tation patterns in recent decades. It is unclear how teleosts respond to severe ambient salinity, alkalinity, and saline-alkalinity in terms of their metabolic and molecular osmoregulation processes. The metabolic reactions in the intestine of Oreochromis mossambicus under salinity (25 g/L, S_C), alkalinity (4 g/L, A_C), and saline-alkalinity (salinity: 25 g/L & alkalinity: 4 g/L, SA_C) stresses were examined in this research utilizing LC-MS/MS-based metabolomics. The findings demonstrated that the three osmotic-stressed groups' metabolic profiles were considerably different from those of the control group. Osmolytes, energy sources, free amino acids, and several intermediate metabolites were all synthetically adjusted as part of the osmoregulation associated with the salinity, alkalinity, and saline-alkalinity stress. Following osmotic stress, osmoregulation-related pathways, including the mTOR signaling pathway, TCA cycle, glycolysis/gluconeogenesis, etc., were also discovered in the intestine of O. mossambicus. Overall, our findings can assist in better comprehending the molecular regulatory mechanism in euryhaline fish under various osmotic pressures and can offer a preliminary profile of osmotic regulation.

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