Influence of soil copper and zinc levels on the abundance of methanotrophic, nitrifying, and N2O-reducing microorganisms in drylands worldwide
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Título: | Influence of soil copper and zinc levels on the abundance of methanotrophic, nitrifying, and N2O-reducing microorganisms in drylands worldwide |
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Autor/es: | Corrochano-Monsalve, Mario | Saiz, Hugo | Maestre, Fernando T. |
Grupo/s de investigación o GITE: | Laboratorio de Ecología de Zonas Áridas y Cambio Global (DRYLAB) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ecología | Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio "Ramón Margalef" |
Palabras clave: | amoA | Climate change | Drylands | Greenhouse gases | pmoA | nosZI |
Fecha de publicación: | 18-ene-2024 |
Editor: | Elsevier |
Cita bibliográfica: | Applied Soil Ecology. 2024, 196: 105284. https://doi.org/10.1016/j.apsoil.2024.105284 |
Resumen: | Understanding soil microbial populations influencing biogeochemical cycles with potential implications for greenhouse gas (GHG) fluxes emissions is crucial. Methanotrophic, nitrifying and N2O-reducing microorganisms are major drivers of CH4 and N2O fluxes in soils. The metabolism of these organisms relies on enzymes that require as cofactors metal ions scarcely available in the soil, such as copper (Cu) and zinc (Zn). Despite the importance of these ions, how their concentrations relate to the abundance of these microbes at the global scale has not been addressed yet. Here, we used data from a global survey carried out in 47 drylands from 12 countries to evaluate the role of soil Cu and Zn concentrations, and their relationship with aridity, as drivers of the abundance of methanotrophs, archaeal and bacterial nitrifiers, and N2O reducers. To do so, we performed qPCR analyses of the marker genes pmoA, archaeal and bacterial amoA and nosZI. We did not find an association between the abundance of methanotrophs and Cu or Zn availability. However, our results highlight the importance of Cu influencing the abundance of nitrifying bacteria and N2O reducers, two main actors involved in the N2O cycle. Our findings indicate that dryland soils can be prone to reduce the N2O coming from nitrification to innocuous N2, but reductions in soil Cu availability (e.g., by increased aridity conditions due to climate change) could shift this trend. |
Patrocinador/es: | Data acquisition and analyses were funded by the European Research Council Grant agreements (grant numbers 242658, BIOCOM, and 647038, BIODESERT). MC-M holds a Postdoctoral Margarita Salas contract from the Ministry of Universities of Spain funded through the NextGenerationEU initiative of the European Union. HS is supported by a María Zambrano Fellowship from the Ministry of Universities and Next-Generation initiative of the European Union. FTM also acknowledges support by Generalitat Valenciana (grant number CIDEGENT/2018/041), the Spanish Ministry of Science and Innovation (PID2020-116578RB-I00), and the University of Alicante (UADIF22-74 and VIGROB22-350). |
URI: | http://hdl.handle.net/10045/139920 |
ISSN: | 0929-1393 (Print) | 1873-0272 (Online) |
DOI: | 10.1016/j.apsoil.2024.105284 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1016/j.apsoil.2024.105284 |
Aparece en las colecciones: | Investigaciones financiadas por la UE INV - DRYLAB - Artículos de Revistas |
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Corrochano-Monsalve_etal_2024_AppliedSoilEcology.pdf | 864,21 kB | Adobe PDF | Abrir Vista previa | |
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