文献类型： 外文期刊
作者： Lan, Guoyu 1 ; Sun, Rui 1 ; Pang, Tong 1 ; Yang, Chuan 1 ; Wu, Zhixiang 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Rubber Res Inst, Haikou 571101, Hainan, Peoples R China
2.Qingdao Agr Univ, Sch Landscape Architecture & Forestry, Qingdao 266109, Shandong, Peoples R China
3.Hainan Danzhou Trop Agroecosystem Natl Observat &, Danzhou 571737, Hainan, Peoples R China
关键词： Groundwater; Antibiotic resistance genes; Diversity; Mobile genetic elements; Rubber plantation
期刊名称：JOURNAL OF HYDROLOGY-REGIONAL STUDIES （ 影响因子：5.0； 五年影响因子：5.3 ）
ISSN：
年卷期： 2025 年 59 卷
页码：
收录情况： SCI
摘要： Study region: Hainan island, China. Study focus: Uncovering the distribution and mechanisms of antibiotic resistance genes (ARGs) in groundwater is crucial for safeguarding public health and environmental sustainability. Despite this, the influence of land use on tropical groundwater ARG profiles remains a critical knowledge gap. Our study employs metagenomic sequencing to delve into the composition, diversity, and driving forces behind ARGs in Hainan's tropical rainforests and rubber plantations. New hydrologic insights for the region: Our findings reveal a startling contrast: the total abundance of ARGs in rubber plantations soars above that in tropical rainforests, yet no significant differences emerge in alpha or (3 diversity. We pinpoint (3-Proteobacteria as the primary carriers of ARGs, with Burkholderiaceae bacterium standing out as the key species-level player. Our analysis further unveils that the bacterial community wields the greatest influence (68.5 %) on ARG abundance, while land use exerts a substantial direct impact (27.3 %) and an indirect influence (24.9 %) by shaping the groundwater environment and microbial ecology. Moreover, mobile genetic elements (MGEs) serve a pivotal indirect role (31.5 %) in ARG abundance, albeit without affecting diversity. These insights lays the groundwork for mitigating the dissemination of resistance genes and their potential harm to human health.
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