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在侵袭性海,Trachemys scripta elegans中对低温压力的肝脏代谢反应

Huo-Bin Tang¹, Qiao-Hong Guo¹, Jia-Meng Yang¹

¹School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.

Animals : an open access journal from MDPI

|August 29, 2024

概括

低温改变红耳滑的新陈代谢,影响与消化和免疫相关的化合物. 短期暴露在寒冷中对这些生态热生物的脂质和能量代谢的影响有限.

科学领域:

生理学生理学生理学
生物化学生物化学
生态生态学生态生态学

背景情况:

外热物种表现出生理和生化适应,以生存环境变化.
了解这些适应对于预测物种对气候变化和低温环境的反应至关重要.

研究的目的:

为了研究暴露于不同热处理的红耳滑 (Trachemys scripta elegans) 幼的生理和生化变化.
评估低温压力对肝脏代谢物的影响,了解适应机制.

主要方法:

红耳滑的幼接受了三个热处理:恒定24°C,逐渐冷却从24°C到14°C,并迅速冷却到4°C.
用生物化学测试分析肝脏代谢物质的变化,以评估对寒冷压力的代谢反应.

主要成果:

在低温条件下观察到肝脏代谢物的显著变化.
特定的代谢物如拉芬,精子和乙半氨酸的含量下降,而酸和D-曼诺的含量增加.
代谢物的变化,如醇酸和 taurohyocholate 表明对消化和免疫功能的影响.

结论:

短期低温压力对红耳滑幼的脂质和能量代谢的影响有限.
代谢物变化表明由于暴露于寒冷而导致消化性能和免疫能力的潜在降低.
这些发现有助于理解ectotherm适应低温环境的策略.

关键词:

氨基酸代谢氨基酸代谢暴露在寒冷中的时间.消化功能的表现.能源需求能源需求生理学的基础.压力反应应对压力的反应.

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