Body size: A hidden trait of the organisms that influences the distribution of antibiotic resistance genes in soil
文献类型： 外文期刊
作者： Guo, Rui 1 ; Yao, Yanlai 1 ; Zhang, Zhe 3 ; Hong, Chunlai 1 ; Zhu, Fengxiang 1 ; Hong, Leidong 1 ; Zhu, Weijing 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Environm Resource Soil & Fertilizer, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Peoples R China
2.Xianghu Lab, Hangzhou 311231, Peoples R China
3.Lanxi Farmland Qual & Fertilizer Promot Ctr, Lanxi 321100, Peoples R China
关键词： Ecological risks; Body size; Soil biome; Organic fertilizers; Aggregates
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：12.2； 五年影响因子：11.9 ）
ISSN： 0304-3894
年卷期： 2024 年 472 卷
页码：
收录情况： SCI
摘要： Body size is a key life -history trait of organisms, which has important ecological functions. However, the relationship between soil antibiotic resistance gene (ARG) distribution and organisms ' body size has not been systematically reported so far. Herein, the impact of organic fertilizer on the soil ARGs and organisms (bacteria, fungi, and nematode) at the aggregate level was analyzed. The results showed that the smaller the soil aggregate size, the greater the abundance of ARGs, and the larger the body size of bacteria and nematodes. Further analysis revealed significant positive correlations of ARG abundance with the body sizes of bacteria, fungi, and nematodes, respectively. Additionally, the structural equation model demonstrated that changes in soil fertility mainly regulate the ARG abundance by affecting bacterial body size. The random forest model revealed that total phosphorus was the primary soil fertility factor influencing the body size of organisms. Therefore, these findings proposed that excessive application of phosphate fertilizers could increase the risk of soil ARG transmission by increasing the body size of soil organisms. This study highlights the significance of organisms ' body size determining the distribution of soil ARGs and proposes a new disadvantage of excessive fertilization from the perspective of ARGs.
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