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Dicyandiamide Applications Mitigate the Destructive Effects of Graphene Oxide on Microbial Activity, Diversity, and Composition and Nitrous Oxide Emission in Agricultural Soil.
Wang, Yan; Wang, Fang; Ford, Rebecca; Tang, Wenhui; Zhou, Minzhe; Ma, Bin; Zhang, Manyun.
Afiliação
  • Wang Y; College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China.
  • Wang F; University of Chinese Academy of Sciences, Beijing 100049, China.
  • Ford R; Centre for Planetary Health and Food Security, School of Environment and Science, Griffith University, Brisbane, Queensland 4111, Australia.
  • Tang W; College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China.
  • Zhou M; College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China.
  • Ma B; College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China.
  • Zhang M; College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China.
J Agric Food Chem ; 72(39): 21449-21460, 2024 Oct 02.
Article em En | MEDLINE | ID: mdl-39288293
ABSTRACT
The widespread production and utilization of graphene oxide (GO) raise concerns about its environmental release and potential ecological impacts, particularly in agricultural soil. Effective nitrogen (N) management, especially through nitrification inhibitors like dicyandiamide (DCD), might mitigate the negative effects of GO exposure on soil microbes via N biostimulation. This study quantified changes in soil physicochemical properties, nitrous oxide (N2O) emissions, microbial activity, biomass, and community after treatments with GO and DCD. The GO exposure significantly reduced bacterial 16S rRNA gene abundance and the biomass of major bacterial phyla. It also stimulated pathways linked to human diseases. However, DCD application alleviated the negative effects of GO exposure on soil bacterial biomass. While DCD application significantly reduced soil N2O emission, the GO application tended to hinder the inhibiting performance of DCD. Our findings highlight the hazards of GO exposure to soil microbes and the potential mitigation strategy with soil N management.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Solo / Microbiologia do Solo / Bactérias / Grafite / Guanidinas / Óxido Nitroso Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Solo / Microbiologia do Solo / Bactérias / Grafite / Guanidinas / Óxido Nitroso Idioma: En Ano de publicação: 2024 Tipo de documento: Article