在黄粉虫虫Tenebrio molitor中路尘颗粒的潜致死作用
Maria Luigia Vommaro1, Piero Giulio Giulianini2, Monia Renzi2
1Department of Biology, Ecology and Earth Science, University of Calabria, 87036 Rende, Italy.
The Science of the total environment
|September 4, 2025
概括
尽管粒子转移到组织中有限,但粉虫虫暴露导致生理压力,包括体重减轻和免疫系统激活. 这突显了道路尘埃对陆地生物的生态风险.
科学领域:
- 环境科学
- 生态毒理学
- 地球生态
背景情况:
- 道路灰尘是一个重要的环境污染物,含有微塑料,如轮胎道路磨损颗粒 (TRWPs).
- 可吸附和运输重金属和碳化合物,对生态系统构成风险.
- RD对土壤生物的生态毒性,特别是它们的生理反应,在很大程度上是未知的.
研究的目的:
- 调查口服暴露于道路灰尘对粉虫甲虫的影响.
- 评估从肠道到暴露甲虫组织中的颗粒转移.
- 评估T. molitor暴露于道路灰尘的生理和免疫反应.
主要方法:
- 使用SEM/EDS收集和分析道路灰尘的形态和元素组成.
- 成年T. molitor在20天内口服5%和10%的RD与面粉混合.
- 使用μFT- IR评估粒子转移,并测量生理/ 免疫反应 (存活率,体质,血细胞密度,氧化酶活性).
主要成果:
- 在道路灰尘中发现了TRWP和微量元素.
- 大多数TRWPs留在肠道中并被排泄,这表明转移到甲虫组织的限制.
- RD暴露导致体质损失,血细胞密度增加和氧化酶活性升高,表明生理和免疫应激.
结论:
- Tenebrio molitor对道路尘埃暴露表现出生理和免疫应激反应,这表明潜在的代谢和炎症影响.
- 有限的颗粒转移表明,观察到的效应可能是由于化学液或一般应激而不是TRWPs的直接组织损伤.
- 这项研究支持对复杂环境混合物的生态毒理学测试中使用T. molitor,并强调道路尘埃对陆地生态系统的影响的生态相关性.
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