Use este identificador para citar ou linkar para este item:
https://repositorio.inpa.gov.br/handle/1/15592
Título: | Strong sesquiterpene emissions from Amazonian soils |
Autor: | Bourtsoukidis, Efstratios Behrendt, Thomas Yáñez-Serrano, Ana Maria Hel?en, Heidi Diamantopoulos, Efstathios Catão, Elisa Caldeira Pires Ashworth, Kirsti Pozzer, Andrea Quesada, Carlos Alberto Martins, Demétrius L. Sá, Marta O. Araüjo, Alessandro Carioca de Brito, Joel F. Artaxo, Paulo Kesselmeier, Jürgen Lelieveld, Jos Williams, Jonathan C. |
Palavras-chave: | Oxygen Ribosome Rna Rna 16s Rna 18s Sesquiterpenes Volatile Organic Compound Air-soil Interaction Biogeochemical Cycle Dry Season Emission Forest Canopy Isoprenoid Metabolism Oxidation Rainforest Soil Microorganism Speciation (chemistry) Canopy Clinical Evaluation Ecosystem Environmental Factor Field Emission Humidity Mass Fragmentography Microbial Activity Nonhuman Prediction Proton Transfer Reaction Mass Spectrometry Rna Transcription Season Soil Soil Microflora Soil Moisture Spatial Soil Variability Amazonia |
Data do documento: | 2018 |
Revista: | Nature Communications |
É parte de: | Volume 9, Número 1 |
Abstract: | The Amazon rainforest is the world's largest source of reactive volatile isoprenoids to the atmosphere. It is generally assumed that these emissions are products of photosynthetically driven secondary metabolism and released from the rainforest canopy from where they influence the oxidative capacity of the atmosphere. However, recent measurements indicate that further sources of volatiles are present. Here we show that soil microorganisms are a strong, unaccounted source of highly reactive and previously unreported sesquiterpenes (C15H24; SQT). The emission rate and chemical speciation of soil SQTs were determined as a function of soil moisture, oxygen, and rRNA transcript abundance in the laboratory. Based on these results, a model was developed to predict soil-atmosphere SQT fluxes. It was found SQT emissions from a Terra Firme soil in the dry season were in comparable magnitude to current global model canopy emissions, establishing an important ecological connection between soil microbes and atmospherically relevant SQTs. © 2018 The Author(s). |
DOI: | 10.1038/s41467-018-04658-y |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
artigo-inpa.pdf | 1,9 MB | Adobe PDF | Visualizar/Abrir |
Este item está licenciada sob uma Licença Creative Commons