马尼布对Eisenia fetida的生物化学和遗传毒性影响
Salih Dikilitaş1, Özlem Aksoy1
1Department of Biology, Faculty of Arts and Sciences, Kocaeli University, İzmit, Turkey.
Environmental toxicology
|January 21, 2026
概括
暴露于Maneb真菌杀菌剂会伤害土 (Eisenia fetida),导致体重减轻,氧化应激增加和DNA损伤. 这项研究揭示了Manebb.
科学领域:
- 环境毒理学环境毒理学
- 生态毒理学 生态毒理学
- 土壤生物学 土壤生物学
背景情况:
- 马内布是一种广泛使用的迪西奥卡巴酸杀菌剂,被列为人类致癌物.
- 艾赛尼亚 (Eisenia fetida) 是评估土壤生态系统中农药毒性的关键模型生物.
- 了解马尼布对土壤无脊椎动物的影响对于环境风险评估至关重要.
研究的目的:
- 在多个生物层面上调查maneb对Eisenia fetida的毒性影响.
- 为了确定maneb对虫的致命度 (LC50) 和次致命影响.
- 阐明E. fetida对控制暴露的生理,生化和分子反应.
主要方法:
- 试管体分析以确定 E. fetida. maneb 的 LC50 值.
- 评估地的体重,脂质过氧化 (MDA水平) 和抗氧化酶活动 (CAT,GST).
- 彗星测定细胞DNA损伤和实时PCR用于抗氧化酶基因表达分析.
主要成果:
- 对于E. fetida的maneb的LC50被确定为798.4毫克/公斤 (干土).
- 低致死的度导致的体重减少,MDA水平增加,CAT和GST活动增加.
- 彗星测定表明细胞损伤增加,而实时PCR显示抗氧化酶表达在对maneb.的反应中受到调节.
结论:
- 在生理,生化和分子层面上,Maneb对Eisenia fetida产生显著的毒性影响.
- 虫表现出氧化应激和DNA损伤的反应,以显示潜在的生态风险.
- 这项研究提供了对maneb对关键土壤生物的生态毒理影响的全面了解.
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