The Antibiotic Resistance Genes Contamination of Strawberries With the Long-Term Use of Raw, Aerobic Composting, and Anaerobic Composting Livestock Manure: A Comparative Study

文献类型： 外文期刊

第一作者： Zhang, Wei-Guo

作者： Zhang, Wei-Guo;Zhang, Wei-Guo;Zhang, Wei-Guo;Zhang, Ming-Sha;Li, Wen

作者机构：

关键词： antibiotic resistance genes; strawberry; composting manure; public health; raw manure

期刊名称：FRONTIERS IN ENVIRONMENTAL SCIENCE （ 影响因子：5.411； 五年影响因子：6.313 ）

ISSN：

年卷期： 2022 年 10 卷

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收录情况： SCI

摘要： Strawberry fruits are easily contaminated with antibiotic resistance genes (ARGs) in the soil fertilized with livestock manure, which is widely used by farmers in order to increased yield and fruit quality. Composting can reduce the ARGs contamination in livestock manure. However, there is a knowledge gap in understanding and comparing the ARGs contamination of strawberries with the long-term use of raw, aerobic composting, and anaerobic composting livestock manure. In this study, our results suggested that compared with the long-term use of raw livestock manure, both aerobic and anaerobic composting livestock manure reduced the ARGs diversity and abundance of strawberries. Mobile genetic elements (MGEs) closely determined the ARGs dissemination. The correlation analysis between ARGs and MGEs revealed the ARGs dissemination from fruits to human was attenuated when strawberries were fertilized with long-term use of composting livestock manure. In addition, this study illustrated the correlations between the antibiotic resistome and microbiome via network co-occurrence analysis, finding that the phylum Proteobacteria, Firmicutes, and Myxococcota were identified as the potential ARGs hosts which exerted the vital role in the environmental behavior of ARGs. The most important highlight was that the contamination of ARGs of strawberries was alleviated by the long-term use of composting livestock manure, especially the anaerobiotic composting manure.

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