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抗生素在植物浮游生物和细菌中通过它们的相互合作引发了抗生素压力诱导的化
Xiuqi You1,2, Qian Chen1,2, Lingrui Kong1,2
1Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China.
Science advances
|October 22, 2025
概括
植物和细菌的相互作用可以在抗生素压力下令人惊地促进生长,挑战单一物种生态毒性测试. 这些跨王国关系对于了解污染物对生态系统的影响至关重要.
科学领域:
- 微生物生态学 微生物生态学
- 环境毒理学环境毒理学
- 藻类生物学 藻类生物学
背景情况:
- 植物浮游生物与细菌的相互作用对生态系统健康至关重要,但在污染研究中经常被忽视.
- 评估污染物影响通常依赖于单一物种的测试,这可能不反映现实世界的复杂性.
研究的目的:
- 为了研究抗生素应激对绿藻 (Chlamydomonas reinhardtii) 和河流细菌共同培养的影响.
- 为了确定物种间的合作是否会影响对抗生素暴露的反应.
- 评估这些相互作用在生态毒性评估中的作用.
主要方法:
- 使用Clamydomonas reinhardtii和河流细菌进行培实验.
- 暴露于10种不同的抗生素,重点是阿齐思罗米 (AZM).
- 单种植和共同种植的比较,以评估个人和组合的反应.
主要成果:
- 藻类和细菌都在共同培养中表现出化,但在抗生素应激下在单一培养中表现出抑制.
- 在共同种植中,由于相互合作,阿齐思罗米从抑制转变为促进生长.
- 藻类提供了碳并消除了抗生素,而细菌提供了营养和生长因子,增强了藻类的生长.
结论:
- 跨王国相互作用显著改变生物体对抗生素等污染物的反应.
- 单个物种生态毒性测试可能无法预测生态系统层面的影响.
- 纳入微生物相互作用对于准确的环境风险评估至关重要.
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