兽医抗生素在油菜的植物毒性上有所不同,油菜的度范围广泛
Giedrė Kacienė1, Austra Dikšaitytė1, Irena Januškaitienė1
1Vytautas Magnus university, Department of Environmental Sciences, Universiteto St. 10, LT-46265, Akademija, Kaunas dist, Lithuania.
Chemosphere
|April 12, 2024
概括
兽医抗生素四环素 (TC) 和西普洛素 (CIP) 在油菜中表现出不同的植物毒性. 虽然低TC度带来最小的风险,但高CIP度严重抑制植物生长,影响作物生产.
科学领域:
- 环境科学 环境科学
- 植物科学 植物科学
- 农业科学 农业科学
背景情况:
- 兽医抗生素残留物因其持久性和对作物的负面影响而引起越来越多的全球关注.
- 了解这些残留物的植物毒性对于评估环境和农业风险至关重要.
研究的目的:
- 为了比较环素 (TC) 和环素 (CIP) 对油菜 (Brassica napus) 的植物毒性作用.
- 研究各种抗生素度对植物形态学,生物化学和生理学的影响.
主要方法:
- 油菜暴露于不同度的TC和CIP (1-500毫克/公斤-1).
- 评估植物反应,包括形态变化,生化标志物和生理参数.
- 评价光系统II (PSII) 的性能和氧化应激指标.
主要成果:
- 环素 (TC) 抑制了光系统II (PSII) 的性能,即使在环境相关的度 (1 mg kg-1).
- 齐普洛素 (CIP) 在高度 (250-500毫克/公斤-1) 时表现出更高的植物毒性,导致氧化应激,光合作用受损和生长迟缓.
- 这两种抗生素的低度 (≤1毫克/公斤) 对油菜的风险最小.
结论:
- 在受影响较小的环境中,TC和CIP污染低于1mgkg−1通常不会显著地危害油菜.
- 高CIP度的密集肥料应用 (>50毫克/公斤-1) 可能会损害植物,降低作物产量,并构成人类健康风险.
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