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使用多尺度方法进行生态毒理风险评估,用于对ecdysone激动剂应用的河口copepod Eurytemora affinis的多尺度方法

Caroline Arcanjo¹, Yannick Colin², Nathalie Giusti-Petrucciani¹

¹Université Le Havre Normandie, Université de Reims Champagne-Ardenne, INERIS, Normandie Univ, UMR-I 02 SEBIO, Le Havre F-76600, France.

Ecotoxicology and environmental safety

|September 20, 2025

概括

暴露于铁胺 (TEB) 会改变甲类Eurytemora affinis的行为和发育,影响微生物群的多样性. 这项研究强调了TEB.

科学领域:

生态毒理学生态毒理学
环境科学环境科学
海洋生物学海洋生物学

背景情况:

转录组分析显示,tbufenozide (TEB) 改变了Eurytemora affinis.中的基因表达.
E. affinis 是一个适合在河口环境中研究 ecdysone 激进剂生态毒理学效应的模型.

研究的目的:

调查TEB对E. affinis生物过程的破坏,跨越多个组织层面.
评估上游 (表观遗传学) 和下游 (位置,幼虫发育) 终点.
检查TEB对足动物微生物群的间接影响.

主要方法:

全球DNA甲基化分析使用HPLC-MS/MS.
运动测试评估对光/黑暗过渡的反应.
幼虫发育的测试.
微生物群分析,包括多样性指数和分类分析.

主要成果:

在雄性或雌性E. affinis.中,TEB没有影响全球DNA甲基化.
暴露于TEB改变了男性的游泳行为,导致过度活跃和增加光/黑暗过渡灵敏度.
在4天后,TEB加速了幼虫的发育.
观察到微生物群的显著变化,包括α和β多样性的减少和gammaproteobacteria丰度的增加.

结论:

暴露于TEB可能会影响适应性,并增加非目标河口生物的脆弱性,如E. affinis.
基于基因表达的优先反应是一种有效的生态毒理学策略.
E. affinis是河口环境风险评估的相关模型,可以在生物尺度上进行多端点评估.

关键词:

行为行为行为.科佩波德 (Copepod) 是一种类动物.表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.河口河口的河口幼虫的发展幼虫的发展微生物群中的微生物群

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