Contribution of soil bacteria to the atmosphere across biomes
EntityUAM. Departamento de Biología
10.1016/j.scitotenv.2023.162137Science of the Total Environment 871 (2023): 162137
ISSN0048-9697 (print); 1879-1026 (online)
Funded byThis work was supported by the Singapore Ministry of Education and Yale-NUS College, grant number R-607-265-331-121
SubjectsBiogeography; Microbial dispersal; Atmospheric Microbiology; Soil Microbiology; Source Tracking; Biología y Biomedicina / Biología
NoteArtículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, los autores pertenecientes a la UAM y el nombre del grupo de colaboración, si lo hubiere
Rights© 2023 The Author(s). Published by Elsevier B.V.
Esta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial 4.0 Internacional.
The dispersion of microorganisms through the atmosphere is a continual and essential process that underpins biogeography and ecosystem development and function. Despite the ubiquity of atmospheric microorganisms globally, specific knowledge of the determinants of atmospheric microbial diversity at any given location remains unresolved. Here we describe bacterial diversity in the atmospheric boundary layer and underlying soil at twelve globally distributed locations encompassing all major biomes, and characterise the contribution of local and distant soils to the observed atmospheric community. Across biomes the diversity of bacteria in the atmosphere was negatively correlated with mean annual precipitation but positively correlated to mean annual temperature. We identified distinct non-randomly assembled atmosphere and soil communities from each location, and some broad trends persisted across biomes including the enrichment of desiccation and UV tolerant taxa in the atmospheric community. Source tracking revealed that local soils were more influential than distant soil sources in determining observed diversity in the atmosphere, with more emissive semi-arid and arid biomes contributing most to signatures from distant soil. Our findings highlight complexities in the atmospheric microbiota that are relevant to understanding regional and global ecosystem connectivity
Google Scholar:Archer, Stephen D.J. - Alcami, Antonio - Rastrojo, Alberto
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