文献类型： 外文期刊
第一作者： Du, Pengqiang
作者： Du, Pengqiang;Wu, Xiaohu;Xu, Jun;Dong, Fengshou;Liu, Xingang;Zheng, Yongquan;Du, Pengqiang;He, Hairong
作者机构：
关键词： Mesosulfuron-methyl; Soil microorganisms; Degradation; Co-occurrence network; N cycling
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：10.588； 五年影响因子：10.129 ）
ISSN： 0304-3894
年卷期： 2021 年 416 卷
页码：
收录情况： SCI
摘要： The wide application of mesosulfuron-methyl (MS) in soil may affect soil microbial community, yet the information is limited. In this work, two distinct soil types from Anyang (AY) and Nanjing (NJ) were spiked with MS (0, 0.006, 0.06, or 0.6 mg kg-1) and incubated for 90 days. MS decreased bacterial and fungal (except the last sampling) abundance and altered their diversity and community. Five biomarkers of bacterial species may help MS degradation and more increased xenobiotics biodegradation pathways were also observed in 0.6 mg kg-1 treatment in AY soil. A co-occurrence network revealed the biomarkers grouped in one module in all AY soils, suggesting these biomarkers act in concert to degrade MS. MS impacted soil N transformation with increasing N2fixing bacteria in both soils and ammonia-oxidising bacteria (AOB) in NJ and decreasing ammonia-oxidizing archaea (AOA) in AY. The contents of NO3--N and NH4+-N were increased by MS. Structural equation models revealed that the abundance of bacteria and fungi was responsible for the NO3--N and NH4+-N contents. In conclusion, this work aids safety assessments and degradation-related research of MS in soil.
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