草甘膦对粉绿狐尾藻生长、光合色素和抗氧化酶系统的影响

Effects of Glyphosate on Growth, Photosynthetic Pigments and Antioxidant Enzyme Systems of Myriophyllum aquaticum

摘要:

草甘膦是目前世界范围内使用范围最广、用量最大的广谱、灭生性除草剂。因其被大量利用于农业生产中，不仅在土壤中存在残留，同时在水环境中检出率也很高，对水生生态系统带来一定威胁。本研究通过模拟实验，选取水生植物粉绿狐尾藻(Myriophyllum aquaticum)于不同浓度(0, 0.05, 0.1, 0.3 mmol/L)的水环境中培养14天后，测定其生长、光和色素含量以及抗氧化酶活性等指标，以观测水体中草甘膦对粉绿狐尾藻的生态毒理作用，探讨植物在草甘膦胁迫下的耐受能力，为将来水体中草甘膦的生物修复选种提供参考依据。

Abstract: Glyphosate is currently the most widely used and broad-spectrum herbicide in the world. Because it is widely used in agricultural production, it not only has residues in the soil, but also has a high detection rate in the water environment, which poses a certain threat to the aquatic ecosystem. In this study, the growth, photosynthetic pigments and the activity of antioxidase on Myriophyllum aquaticum were determined after 14 days culture under different concentration of glyphosate (0, 0.05, 0.1, 0.3 mmol/L). We observed the ecotoxicological effects of glyphosate on Myriophyllum aquaticum, explored the tolerance of plants under this stress condition, and provided a reference basis for selecting plant species for bioremediation of glyphosate.

文章引用：蔡欢, 吴中华. 草甘膦对粉绿狐尾藻生长、光合色素和抗氧化酶系统的影响[J]. 自然科学, 2019, 7(3): 197-204. https://doi.org/10.12677/OJNS.2019.73029

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