Effects of sulfadiazine and Cu on soil potential nitrification and ammonia-oxidizing archaea and bacteria communities across different soils

Frontiers in Microbiology

Microbiology

Guizhen Wang¹  Jing Liu¹  Zafran Gul Wazir¹  Guoqin Hou¹  Fangxu Rong¹  Fayuan Wang²  Hongliang Liu³  Kai Liu⁴  Aijv Liu⁴  Mingyue Li⁴  Yuzhi Xu⁴ 

[1] School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China;School of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, China;School of Life Sciences and Medicine, Shandong University of Technology, Zibo, Shandong, China;School of Resources and Environmental Engineering, Shandong University of Technology, Zibo, China;

关键词: sulfadiazine;    copper;    toxicity;    soil potential nitrification;    AOA;    AOB;    soil type;   

DOI  :  10.3389/fmicb.2023.1153199

 received in 2023-01-29, accepted in 2023-03-10,  发布年份 2023

来源: Frontiers

【 摘 要 】

IntroductionSulfadiazine (SDZ) and copper (Cu) are frequently detected in agricultural soils, but little is known on their single or combined impact on ammonia oxidizing microbial community and function across different soils.MethodsIn this study, a microcosm was conducted to distinguish the microbial ecotoxicity of SDZ and Cu across different soils by analyzing soil potential nitrification rate (PNR) and the amoA gene sequences.ResultsThe results showed that the single spiking of SDZ caused a consistent decrease of soil PNR among three tested soils, but no consistent synergistic inhibition of SDZ and Cu was observed across these soils. Moreover, across three tested soils, the distinct responses to the single or joint exposure of SDZ and Cu were found in amoA gene abundance, and diversity as well as the identified genus taxa of ammonia-oxidizing archaea (AOA) and bacteria (AOB). Meanwhile, only the specific genus taxa of AOA or AOB consistently corresponded to the variation of soil PNR across different treated soils. The further principal component analysis (PCA) exhibited that the variable influence of SDZ and Cu on ammonia oxidizing microbial community and function was greatly dependent on soil type.DiscussionTherefore, in addition to ecological functionality and the specific prokaryotic taxa, soil microbial ecotoxicity of SDZ and Cu also was dependent on edaphic factors derived from soil types. This study proposes an integrative assessment of soil properties and multiple microbial targets to soil contamination management.

【 授权许可】

Unknown   
Copyright © 2023 Hou, Wazir, Liu, Wang, Rong, Xu, Li, Liu, Liu, Liu and Wang.