在Procambarus clarkii上对avermectins,chlorantraniliprole和deltamethrin的毒性比较:组织病理学,亡,抗氧化,转录组反应和肠道微生物群
Qinglin Liu1, Yongkang Feng1, Bingtao Dai1
1Fisheries College, Guangdong Ocean University, Zhanjiang, China.
Pesticide biochemistry and physiology
|December 5, 2025
概括
来自大米田的农药残留物通过破坏 (Procambarus clarkii) 的组织,增加氧化应激和改变肠道细菌来伤害. 这项研究揭示了分子干扰和对宿主微生物群相互作用的影响.
科学领域:
- 环境毒理学环境毒理学
- 水产养殖是水产养殖的一种方式.
- 生态毒理学 生态毒理学
背景情况:
- 米养殖是一种可持续的农业模式.
- 在大米种植中使用的农药可能会污染水,对 (Procambarus clarkii) 构成风险.
- 了解农药毒性对于综合养殖系统中的鱼健康至关重要.
研究的目的:
- 为了研究三种常见农药 (阿维美克丁,兰利,德尔塔米特林) 对Procambarus clarkii的有毒作用.
- 评估对组织病理学,细胞亡,氧化应激,基因表达和肠道微生物群的影响.
- 在农药暴露下探索分子机制和宿主微生物群相互作用.
主要方法:
- 在96小时内,Procambarus clarkii对1%的avermectins,chlorantraniliprole和deltamethrin的LC50的急性暴露.
- 肝和肠道的组织病理学检查.
- 对亡标志物,氧化应激指标,转录组和肠道微生物群组成的分析.
主要成果:
- 暴露于杀虫剂会对肝胰腺和肠道组织造成显著的病理损伤.
- 观察到亡和氧化应激增加,抗氧化酶活性发生变化.
- 转录组分析揭示了免疫和代谢途径的丰富,与肠道微生物群的变化有关 (例如,蛋白质细菌减少,Firmicutes增加).
结论:
- 杀虫剂残留物破坏了Procambarus clarkii.中的肠道和肝脏平衡.
- 杀虫剂诱导氧化应激,亡,并改变肠道微生物组合.
- 这些发现为农药毒性和鱼宿主微生物群相互作用提供了分子洞察力.
相关概念视频
Toxicity Testing in Animals
Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...
Anthelminthic Agents
Anthelmintic drugs differ significantly from antiparasitic therapies targeting protozoa, primarily due to differences in parasite biology. Whereas most protozoal treatments act on proliferating cells, anthelmintics are typically directed against mature, nonproliferative helminths. The therapeutic approach considers the helminth's reliance on neuromuscular coordination, glucose metabolism, and microtubular integrity for survival, reproduction, and localization within the host. Most anthelmintics...


