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https://hdl.handle.net/10356/162579
Title: | Vertical stratification of the air microbiome in the lower troposphere | Authors: | Drautz-Moses, Daniela Isabel Luhung, Irvan Gusareva, Elena S. Kee, Carmon Gaultier, Nicolas Eugene Premkrishnan, Balakrishnan N. V. Lee, Choou Fook Leong, See Ting Park, Changsook Yap, Zhei Hwee Heinle, Cassie Elizabeth Lau, Kenny Jia Xu Purbojati, Rikky Wenang Lim, Serene Boon Yuean Lim, Yee Hui Kutmutia, Shruti Ketan Aung, Ngu War Oliveira, Elaine Lopes Ng, Soo Guek Dacanay, Justine Ang, Poh Nee Spence, Samuel D. Phung, Wen Jia Wong, Anthony Kennedy, Ryan J. Kalsi, Namrata Sasi, Santhi Puramadathil Chandrasekaran, Lakshmi Uchida, Akira Junqueira, Ana Carolina M. Kim, Hie Lim Hankers, Rudolf Feuerle, Thomas Corsmeier, Ulrich Schuster, Stephan Christoph |
Keywords: | Engineering::Environmental engineering | Issue Date: | 2022 | Source: | Drautz-Moses, D. I., Luhung, I., Gusareva, E. S., Kee, C., Gaultier, N. E., Premkrishnan, B. N. V., Lee, C. F., Leong, S. T., Park, C., Yap, Z. H., Heinle, C. E., Lau, K. J. X., Purbojati, R. W., Lim, S. B. Y., Lim, Y. H., Kutmutia, S. K., Aung, N. W., Oliveira, E. L., Ng, S. G., ...Schuster, S. C. (2022). Vertical stratification of the air microbiome in the lower troposphere. Proceedings of the National Academy of Sciences of the United States of America, 119(7). https://dx.doi.org/10.1073/pnas.2117293119 | Project: | MOE2013-T3-1-013 | Journal: | Proceedings of the National Academy of Sciences of the United States of America | Abstract: | The troposphere constitutes the final frontier of global ecosystem research due to technical challenges arising from its size, low biomass, and gaseous state. Using a vertical testing array comprising a meteorological tower and a research aircraft, we conducted synchronized measurements of meteorological parameters and airborne biomass (n = 480) in the vertical air column up to 3,500 m. The taxonomic analysis of metagenomic data revealed differing patterns of airborne microbial community composition with respect to time of day and height above ground. The temporal and spatial resolution of our study demonstrated that the diel cycle of airborne microorganisms is a ground-based phenomenon that is entirely absent at heights >1,000 m. In an integrated analysis combining meteorological and biological data, we demonstrate that atmospheric turbulence, identified by potential temperature and high-frequency three-component wind measurements, is the key driver of bioaerosol dynamics in the lower troposphere. Multivariate regression analysis shows that at least 50% of identified airborne microbial taxa (n = ∼10,000) are associated with either ground or height, allowing for an understanding of dispersal patterns of microbial taxa in the vertical air column. Due to the interconnectedness of atmospheric turbulence and temperature, the dynamics of microbial dispersal are likely to be impacted by rising global temperatures, thereby also affecting ecosystems on the planetary surface. | URI: | https://hdl.handle.net/10356/162579 | ISSN: | 0027-8424 | DOI: | 10.1073/pnas.2117293119 | Schools: | Asian School of the Environment | Research Centres: | Singapore Centre for Environmental Life Sciences and Engineering (SCELSE) | Rights: | © The Authors. This open access article is distributed under Creative Commons Attribution License 4.0 (CC BY). | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | ASE Journal Articles SCELSE Journal Articles |
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pnas.2117293119.pdf | 3.48 MB | Adobe PDF | View/Open |
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