恩诺沙星与铜相互作用对土壤酶活性的影响及综合毒性评价。
Effects of interaction between enrofloxacin and copper on soil enzyme activity and evaluation of comprehensive toxicity.
机构信息
Key Laboratory of Agricultural Environment in Universities of Shandong, College of Resources and Environment, Shandong Agricultural University, Taian, 271018, PR China.
Department of Physical & Environmental Sciences, Texas A&M University-Corpus Christi, Corpus Christi, TX, 78412, USA.
出版信息
Chemosphere. 2021 Apr;268:129208. doi: 10.1016/j.chemosphere.2020.129208. Epub 2020 Dec 15.
Antibiotics are detected in association with heavy metals in the soil. However, interactions between antibiotics and heavy metals on soil enzyme activity have yet to been studied thoroughly. In this study, soil enzyme activity (urease, sucrase, phosphatase, and Rubisco) were measured after exposure to soils dosed with copper (Cu) and/or enrofloxacin (ENR) over 28 days. Enzyme responses to ENR only treatments varied, but Cu exhibited a strong negative response from all soil enzymes except Rubisco. An interaction between the effects of the two pollutants on soil enzymes was observed in the combined contamination treatments. Greater comprehensive toxicity to soil enzyme activity was observed in combined treatment groups compared to other groups. We anticipate our studies can provide a scientific theoretical basis for the combined pollution of antibiotics and heavy metals in soil.
抗生素与土壤中的重金属有关联。然而，抗生素和重金属对土壤酶活性的相互作用尚未被充分研究。在这项研究中，在暴露于添加铜（Cu）和/或恩诺沙星（ENR）的土壤 28 天后，测量了土壤酶活性（脲酶、蔗糖酶、磷酸酶和 Rubisco）。仅用 ENR 处理时，酶的反应各不相同，但 Cu 对除 Rubisco 之外的所有土壤酶均表现出强烈的负响应。在联合污染处理中观察到两种污染物对土壤酶的影响存在相互作用。与其他组相比，联合处理组对土壤酶活性的综合毒性更大。我们预计我们的研究可以为土壤中抗生素和重金属的联合污染提供科学的理论基础。
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