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时间和度依赖的代谢反应揭示了暴露的多色的适应失败

Jie Lu¹, Tuo Yao², Shengli Fu³

¹Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Sanya Tropical Fisheries Research Institute, Sanya 572426, China.

Journal of hazardous materials

|February 14, 2025

概括

暴露显著增加了鱼的死亡率,并随着时间的推移破坏了它们的新陈代谢. 长期研究对于了解金属污染对海洋生物的影响至关重要.

科学领域:

海洋生物学海洋生物学
生态毒理学生态毒理学
环境科学环境科学

背景情况:

(Cd) 是一种有毒的重金属污染物.
海洋无脊椎动物,如多色鱼 (Haliotis diversicolor),容易受到环境污染物的影响.
了解Cd暴露的慢性影响对于海洋生态系统健康至关重要.

研究的目的:

调查 (Cd) 暴露对成年 Haliotis diversicolor 的时间和度依赖的影响.
分析生存率,生理指数和新陈代谢特征.
评估金属污染对海洋生物的长期影响.

主要方法:

一个月和两个月内,Haliotis diversicolor暴露在不同度的Cd中.
监测生存率和计算危险比率.
测量综合生物标志物响应 (IBR) 值.
代谢概况分析以分析代谢变化.

主要成果:

一个月的Cd暴露没有显著的死亡率,但两个月的高度增加了死亡风险 (HR=3.359).
随着Cd度和暴露时间的增加,IBR值增加,表明对抗氧化剂和代谢系统的压力.
代谢分析揭示了能量,氨基酸,脂质代谢和压力反应的明显时间和度依赖的变化,高度导致两个月后细胞功能障碍.

结论:

长时间暴露于Cd会导致显著的死亡率和细胞代谢的根本重组 Haliotis diversicolor.
两个月后观察到的代谢变化表明静态过载和强制性权衡,而不是适应.
综合的长期评估对于评估金属污染的生态毒理影响至关重要.

关键词:

静态超负荷静态超负荷 Cd 有毒性有毒性哈利奥蒂斯 (Haliotis) 有多种颜色.代谢学代谢学代谢学时间和度依赖的效应.

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