金鸡河流域不同土地类型典型耐药菌和耐药基因的分布特征
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1.中国农业科学院农业环境与可持续发展研究所;2.北京市畜牧总站

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国家重点研发计划项目(2023YFC3207701);现代农业产业技术体系北京市家畜创新团队(BAIC05-2025);中国农业科学院科技创新工程项目 (CAAS-CFSGLCA-IEDA-202302)


Distribution Characteristics of Typical Antibiotic-Resistant Bacteria and Antibiotic Resistance Genes in Different Land Types in Jinji River Basin
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1.Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences;2.Beijing Animal Husbandry General Station

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the National Key R & D Program of China (No. 2023YFC3207701); Beijing Innovation Consortium of Livestock Research System (Beijing Livestock Innovation Consortium) (BAIC05-2025) and the Agricultural Science; Technology Innovation Program of the Chinese Academy of Agricultural Sciences (No. CAAS-CFSGLCA-IEDA-202302)

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    摘要:

    为系统探究不同土地利用类型对土壤中抗生素耐药菌(ARB)及耐药基因(ARGs)分布的影响,采集北京市金鸡河流域6种典型土地利用类型(菜地、麦地、花圃、果园、苗圃和养殖场)土壤样品,对其总可培养细菌、金霉素耐药菌、磺胺甲噁唑耐药菌和代表性ARGs的丰度进行测定,并结合高通量测序技术分析典型土壤微生物群落结构特征。结果表明,金鸡河流域张镇和龙湾屯镇所受抗性污染程度最高,菜地土壤中ARB、ARGs及intI1的丰度显著高于其他土地利用类型(P<0.05);拟杆菌门(Bacteroidetes)、厚壁菌门(Firmicutes)、髌骨细菌门(Saccharibacteria)和异常球菌-栖热菌门(Deinococcus-Thermus)是土壤中的优势菌门;溶杆菌(Lysobacter)和德沃斯氏菌(Devosia)是ARGs的主要宿主菌,与sul1、sul2、tetG、tetX及intI1均呈显著正相关(P<0.05)。金鸡河流域菜地土壤的耐药水平显著高于其他土地利用类型,应注重有机肥的优化施用以降低土壤微生物耐药性和生态健康的潜在风险。

    Abstract:

    【Objective】 The application of antibiotics has significantly advanced animal husbandry and agriculture. However, the resulting contamination by antibiotic-resistant bacteria (ARB) and antibiotic resistance genes (ARGs) poses a severe threat to the ecological environment and human health. This study aims to systematically investigate the effects of different land use types within the same region on the distribution of ARB and ARGs in soil. 【Method】 This study collected 210 soil samples from six typical land use types (vegetable fields, wheat fields, flower gardens, orchards, nurseries and livestock farms) in the Jinji River basin of Beijing. The abundance of total cultivable bacteria, chlortetracycline-resistant bacteria, sulfamethoxazole-resistant bacteria, and representative ARGs in the soil was measured. Additionally, the structural characteristics of representative soil microbial communities were analyzed using high-throughput sequencing technology. 【Result】 The results indicate that the resistance contamination in Zhang Town and Longwantun Town of the Jinji River basin was the most severe. The abundance of ARB, ARGs, and intI1 in vegetable field soil was significantly higher than that in other land use types (P<0.05). Bacteroidetes, Firmicutes, Saccharibacteria, and Deinococcus-Thermus were the dominant bacterial phyla in the soil. Also, Lysobacter and Devosia were identified as the main host bacteria for ARGs, and they showed significant positive correlations with sul1, sul2, tetG, tetX, and intI1 (P<0.05). 【Conclusion】 Based on our results, the resistance level of vegetable field soil in the Jinji River sub-basin was significantly higher than that of other land use types. Thus, it is essential to focus on the optimized application of organic fertilizers to reduce the potential risks of soil microbial resistance and ecological health.

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李烨姗,冯烁,张卓毅,朱昌雄,张燕荣,李红娜.金鸡河流域不同土地类型典型耐药菌和耐药基因的分布特征[J].土壤学报,DOI:10.11766/trxb202502130059,[待发表]
Li Yeshan, Feng Shuo, Zhang Zhuoyi, Zhu Changxiong, Zhang Yanrong, Li Hongna. Distribution Characteristics of Typical Antibiotic-Resistant Bacteria and Antibiotic Resistance Genes in Different Land Types in Jinji River Basin[J]. Acta Pedologica Sinica, DOI:10.11766/trxb202502130059,[In Press]

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  • 收稿日期:2025-02-13
  • 最后修改日期:2025-08-25
  • 录用日期:2025-09-22
  • 在线发布日期: 2025-11-12
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