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Polyethylene and polyvinyl chloride microplastics promote soil nitrification and alter the composition of key nitrogen functional bacterial groups.
Huang, Shunyin; Guo, Ting; Feng, Zhen; Li, Baochen; Cai, Yimin; Ouyang, Da; Gustave, Williamson; Ying, Chengfei; Zhang, Haibo.
Afiliación
  • Huang S; Zhejiang Provincial Key laboratory of Soil Contamination Bioremediation, School of Environment and Resources, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China.
  • Guo T; Zhejiang Provincial Key laboratory of Soil Contamination Bioremediation, School of Environment and Resources, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China.
  • Feng Z; School of Advanced Agricultural Sciences, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China.
  • Li B; Zhejiang Provincial Key laboratory of Soil Contamination Bioremediation, School of Environment and Resources, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China.
  • Cai Y; Zhejiang Provincial Key laboratory of Soil Contamination Bioremediation, School of Environment and Resources, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China.
  • Ouyang D; Zhejiang Provincial Key laboratory of Soil Contamination Bioremediation, School of Environment and Resources, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China.
  • Gustave W; School of Chemistry, Environmental & Life Sciences, University of The Bahamas, Nassau, New Providence, Bahamas.
  • Ying C; School of Humanities and Law, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China.
  • Zhang H; Zhejiang Provincial Key laboratory of Soil Contamination Bioremediation, School of Environment and Resources, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China. Electronic address: hbzhang@zafu.edu.cn.
J Hazard Mater ; 453: 131391, 2023 07 05.
Article en En | MEDLINE | ID: mdl-37043864
Microplastics (MPs) contamination in soils seriously threatens agroecosystems globally. However, very few studies have been done on the effects of MPs on the soil nitrogen cycle and related functional microorganisms. To assess MP's impact on the soil nitrogen cycle and related functional bacteria, we carried out a one-month soil incubation experiment using typical acidic soil. The soil was amended with alfalfa meal and was spiked with 1% and 5% (mass percentage) of low-density polyethylene (LDPE) and polyvinyl chloride (PVC) MPs. Our results showed that both LDPE and PVC addition significantly increased soil nitrification rate and nitrate reductase activity, which could further promote soil denitrification. The relative abundance of diazotrophs, ammonium oxidizing, and denitrifying bacterial groups were significantly altered with MPs addition. Moreover, the MPs treatments greatly enhanced denitrifying bacteria richness. Redundancy analysis showed that nitrate reductase activity was the most significant factor affecting the soil functional bacterial community. Correlation analysis shows that Nitrosospira genus might be for the improvement of soil nitrification rate. Our results implied that MPs exposure could significantly affect the soil nitrogen cycling in farmland ecosystems by influencing essential nitrogen functional microorganisms and related enzymatic activities.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polietileno / Nitrificación Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polietileno / Nitrificación Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos