四环素类抗生素胁迫下土壤细菌菌群响应机制的研究进展  

Research progress on response mechanisms of soil bacterial flora under tetracycline antibiotics stress

作　　者：石浩 蔡柏岩[1,2] SHI Hao;CAI Baiyan(Engineering Research Center of Agricultural Microbiology Technology,Ministry of Education&Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Regions&Key Laboratory of Molecular Biology,College of Heilongjiang Province&School of Life Sciences,Heilongjiang University,Harbin Heilongjiang 150080;Hebei University of Environmental Engineering,Hebei Key Laboratory of Agroecological Safety,Qinhuangdao Hebei 066102)

机构地区：[1]黑龙江大学生命科学学院,农业微生物技术教育部工程研究中心,黑龙江省寒地生态修复与资源利用重点实验室,黑龙江省普通高校分子生物学重点实验室,哈尔滨黑龙江150080 [2]河北环境工程学院,河北省农业生态安全重点实验室,河北秦皇岛066102

出　　处：《环境污染与防治》2024年第7期1028-1034,共7页Environmental Pollution & Control

基　　金：黑龙江省自然科学基金资助项目(No.LH2023C088);黑龙江省生态环境保护科研项目(No.HST2022TR002)。

摘　　要：四环素类抗生素(TCs)广泛应用于人类疾病治疗、畜禽养殖和水产养殖等方面,目前是世界上使用量第二大的抗生素,但是,因其不能被生物体完全吸收,大部分TCs随着排泄物进入到环境中。TCs已在全球生态系统的绝大多数环境介质中被检测出来,尤其是将残留有TCs的畜禽粪便作为有机肥施入农田中,或者使用残留TCs的废水灌溉农田时,TCs会在农田土壤中长期累积,造成土壤污染,并通过食物链对人类健康和生态系统产生潜在危害。TCs主要作用是抑制细菌的繁殖,当其作为污染物进入土壤中,将会影响土壤细菌多样性、丰度、细菌群落结构和功能,造成土壤污染和肥力下降。阐释了土壤细菌菌群对TCs污染的响应机制,重点从土壤细菌菌群的生物量、多样性、优势菌群以及酶活性等方面进行总结,并提出TCs污染引起土壤细菌菌群变化方面研究的不足以及下一步重点研究的问题。Tetracycline antibiotics(TCs)have become the second most widely used antibiotics globally.They are extensively used in human disease treatment,animal husbandry,aquaculture,and other areas.However,the organisms face a lot of difficulty in the complete absorption of TCs;hence,a large portion of them is excreted and enters the environment through waste.TCs have been detected in a majority of environmental media in global ecosystems.In particular,when TCs residues in animal manure are used as organic fertilizers in farmland or when wastewater containing TCs residues is used for irrigation,TCs can accumulate in agricultural soil,leading to pollution.TCs pose risks to human health and the ecosystem through the food chain.The primary function of TCs is to inhibit the reproduction of bacteria.When they enter the soil as pollutants,they can affect the diversity,abundance,structure,and function of bacterial communities,leading to soil pollution and a decline in fertility.Therefore,this study aimed to explain the response mechanisms of bacterial communities in the soil to TCs pollution,focusing on the biomass,diversity,dominant bacterial groups,and enzyme activity of bacterial communities.It also highlighted the research gaps in exploring the changes in bacterial communities in the soil caused by TCs pollution and proposed critical research questions for future studies.

关 键 词：四环素类抗生素 土壤污染 细菌菌群 细菌多样性 响应机制 

分 类 号：X172[环境科学与工程—环境科学] X53