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Energy consumption and intestinal microbiome disorders of yellow catfish (Pelteobagrus fulvidraco) under cold stress

文献类型： 外文期刊

作者： Hu, Junru 1 ; Zhao, Hongxia 1 ; Wang, Guoxia 1 ; Sun, Yuping 1 ; Wang, Lei 2 ;

作者机构： 1.Guangdong Acad Agr Sci, Inst Anim Sci, Guangdong Key Lab Anim Breeding & Nutr, South China Minist Agri & Rural Affairs,Key Lab An, Guangzhou, Peoples R China

2.South China Normal Univ, Coll Life Sci, Key Lab Ecol & Environm Sci Guangdong Higher Educ, Guangdong Prov Key Lab Hlth & Safe Aquaculture, Guangzhou, Peoples R China

3.South China Normal Univ, Inst Modern Aquaculture Sci & Engn, Guangzhou, Peoples R China

关键词： Pelteobagrus fulvidraco; cold stress; energy; transcriptome; metabolome analyses; intestinal microbiome

期刊名称：FRONTIERS IN PHYSIOLOGY （ 影响因子：4.755； 五年影响因子：5.316 ）

ISSN：

年卷期： 2022 年 13 卷

页码：

收录情况： SCI

摘要： The yellow catfish (P. fulvidraco), as one of the economically-relevant freshwater fish found in China, cannot tolerate cold stress. Understanding the physiological and biochemical mechanisms under cold stress may provide insights for improving yellow catfish management in the cold. Therefore, we investigated the metabolic and intestinal microbiota changes in cold stress in response to induced cold stress. We found that cold stress in yellow catfish lead to a significant increase in the consumption of glucose and triglycerides, as well as increased use of cholesterol as an alternate energy source. Moreover, cold stress also activated several significant biological processes in the fish such as thermogenesis, oxidative phosphorylation, the spliceosome machinery, RNA transport, protein processing that occurs in the ER, and purine and pyrimidine metabolism pathways involved in energy production. On the other hand, many other mechanisms like insulin resistance, starch and sucrose metabolism, and the glyoxylate and dicarboxylate metabolic pathways that also served as energy production pathways were weakened. Furthermore, organic acids and their derivatives as well as the lipids and lipid-like molecules were mainly altered in cold stress; prenol lipids, steroids, and their derivatives were significantly upregulated, while fatty acyls and glycerophospholipids were significantly downregulated. Transcriptomic and metabolomic integrated analysis data revealed that carbohydrate metabolism, lipid metabolism, amino acid metabolism, and nucleotide metabolism were involved in cold stress resistance. In addition, the intestinal microbiota abundance was also reduce and the pathogenic bacteria of plesiomonas was rapidly appreciation, which suggesting that cold stress also impaired intestinal health. This research study could offer insights into winter management or the development of feed to promote cold resistance in yellow catfish.

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