环境中残留的抗生素一直被认为与环境中抗性基因(antibiotic resistance genes,ARGs)产生与传播有着密切联系,目前,学者们对于环境中抗生素与ARGs关系研究较多,但研究结果却不尽相同.本研究用磺胺对大肠杆菌(Escherichia coli,E.coli)毒性作用表征磺胺的胁迫作用,用突变和接合转移表征ARGs的产生与传播,测定了5种磺胺对E.coli的毒性、突变与质粒接
Antibiotics are widely detected in the environment and pose a serious threat to aquatic life and human health.Constructed wetlands are widely used in the purification of low-pollution water bodies,and
Antibiotics are characterized by accumulation and refractory properties and are widely detected in the environment.
随着集约化、规模化畜禽养殖业的蓬勃发展，抗生素因在预防和治疗疾病、促进动物生长等方面发挥的显著作用而被广泛应用.用于动物的抗生素大约有50％-90％以母体形式通过粪便和尿液排出体外.H·lzel等在猪粪中检测到抗生素高达500 mg/L[1].
In past decades,antibiotics have attacked enormous attention due to frequent detection and potential environmental risk.
氟喹诺酮类药物(Fluoroquinolones,FQNs)在我国被广泛应用于人体临床和畜禽养殖业的疾病预防,其中环丙沙星、诺氟沙星、氧氟沙星三类约占国内氟喹诺酮类抗生素总产量的98％,且每年生产的氟喹诺酮类抗生素有一半是用于畜禽养殖。
Particles exhausted from petrol and diesel consumptions are major components of urban air pollution that can be exposed to human via direct inhalation or other routes due to atmospheric deposition int
Currently,wastewater reclamation is increasing and its application has expanded worldwide.Nevertheless,little is known regarding the potential for wastewater reclamation to disseminate ARGs and the ef
近年来的研究表明中国淡水环境普遍受到抗生素和抗生素抗性基因(antibiotic resistance genes,ARGs)的污染。湖泊作为一个区域中各种环境污染物汇集和演化的重要场所,其抗生素与ARGs 的污染情况尤其值得关注。本文以中国最大的淡水湖鄱阳湖为研究对象,研究抗生素及其抗性基因在湖水中的污染现状和分布特征,旨在为鄱阳湖抗生素及其抗性基因环境污染的控制提供基础数据。
由于规模化养殖场抗生素的滥用，畜禽粪便中抗生素抗性基因污染已成为亟待解决的问题。恩诺沙星(ENR)是畜禽粪便中残留浓度较高的氟喹诺酮类药物，高浓度ENR可显著抑制厌氧发酵产气量和产气进程，但其在厌氧消化过程中对ARGs和微生物群落的影响尚不清楚。