数字农科院2.0

Different biodegradation potential and the impacted soil functions of epoxiconazole in two soils

文献类型： 外文期刊

作者： Pengqiang Du;Hairong He;Lin Zhou;Fengshou Dong;Xingang Liu;Yongquan Zheng

作者机构：

关键词： Biomarkers;Epoxiconazole;Soil function;Soil microbial ecology;Soil microorganism network

期刊名称： Journal of Hazardous Materials

ISSN： 0304-3894

年卷期： 2022 年 422 卷

页码：

收录情况： SCIE（2022版） ; EI（2022版）

摘要： Epoxiconazole is an effective pesticide to control Fusarium head blight (FHB), and the application will increase. To investigate the ecotoxicity of epoxiconazole to soil microbiome, we carried out an indoor experiment in which soils from two main regions of wheat production in China (Nanjing and Anyang) were treated with epoxiconazole (0, 0.0625, 0.625, or 6.25 mg kg–1) and incubated for 90 days. Under epoxiconazole stress, for bacteria and fungi, the abundance was increased and the diversity and community were impacted. In Anyang soil, the half-life of epoxiconazole was short with more increased species (linear discriminant analysis effect size biomarkers) and more increased xenobiotics biodegradation pathways in epoxiconazole treatments. The increased species mostly due to high abundance in initial state and more positive connections of the species. Co-occurrences revealed that epoxiconazole tightened bacterial connection, and increased positive correlations in Anyang soil. The N transformation was influenced with increased nifH and amoA; and the contents of NH4+-N and NO3–-N were also increased. The functions of C, S, and manganese metabolisms were also impacted by epoxiconazole. This work expands our understanding about epoxiconazole degradation and help us to properly assess the risk of epoxiconazole in soil.

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