TY - JOUR
T1 - Structure and function of the soil microbiome underlying N2O emissions from global wetlands
AU - Bahram, Mohammad
AU - Espenberg, Mikk
AU - Pärn, Jaan
AU - Lehtovirta-Morley, Laura
AU - Anslan, Sten
AU - Kasak, Kuno
AU - Kõljalg, Urmas
AU - Liira, Jaan
AU - Maddison, Martin
AU - Moora, Mari
AU - Niinemets, Ülo
AU - Öpik, Maarja
AU - Pärtel, Meelis
AU - Soosaar, Kaido
AU - Zobel, Martin
AU - Hildebrand, Falk
AU - Tedersoo, Leho
AU - Mander, Ülo
N1 - Acknowledgements: We thank O. Botsarova, L. Lopp, K. Kanger, R. Puusepp, E.J. Sova, H. Tamm, I. Varik for assistance in molecular laboratory analyses. We thank Lorenzo Menichetti for useful discussions. We are grateful to S. Egorov, I. Filippov, G. Gabiri, J. Gallagher, I. Gheorghe, W. Hartman, R. Iturraspe, J. Järveoja, A. Kull, F. Laggoun-Défarge, E. Lapshina, A. Lohila, C. Luswata, S. Mander, M. Metspalu, W. Mitsch, R. Moreton, K. Oopkaup, H. Óskarsson, J. Paal, T. Pae, E. Parrodi, S. Pellerin, F. Sabater, J. Salm; F. Sgouridis, D. Silveira Batista, K. Sohar, K. Storey, M. Tenywa; S. Ullah, E. Uuemaa, G. Veber, J. Villa, L. Yang and S.S. Zaw for assistance on study-site selection and field investigation.
Funding: ME, JP, LT and UM were supported by the Ministry of Education and Science of Estonia (SF0180127s08 grant), the Estonian Research Council (IUT2-16, PUTJD619, PRG-352, PRG-609, and MOBERC20), EU through the European Regional Development Fund (Centres of Excellence ENVIRON, grant number TK-107, EcolChange, grant number TK-131, and the MOBTP101 returning researcher grant by the Mobilitas Pluss program); M.B. was supported by the Swedish Research Council Formas (2020-00807); J.P., K.K., and M.Ma. were supported by the European Social Fund (Doctoral School of Earth Sciences and Ecology); L.L.M. was supported by Royal Society Dorothy Hodgkin Research Fellowship (DH150187); F.H. was supported by European Research Council (ERC) Starting Grant (UNITY 852993), the BBSRC Institute Strategic Program Gut Microbes and Health BB/R012490/1, its constituent project BBS/E/F/000PR10355, the European Union’s Horizon 2020 research and innovation program (grant agreement no. 948219).
PY - 2022/3/17
Y1 - 2022/3/17
N2 - Wetland soils are the greatest source of nitrous oxide (N2O), a critical greenhouse gas and ozone depleter released by microbes. Yet, microbial players and processes underlying the N2O emissions from wetland soils are poorly understood. Using in situ N2O measurements and by determining the structure and potential functional of microbial communities in 645 wetland soil samples globally, we examined the potential role of archaea, bacteria, and fungi in nitrogen (N) cycling and N2O emissions. We show that N2O emissions are higher in drained and warm wetland soils, and are correlated with functional diversity of microbes. We further provide evidence that despite their much lower abundance compared to bacteria, nitrifying archaeal abundance is a key factor explaining N2O emissions from wetland soils globally. Our data suggest that ongoing global warming and intensifying environmental change may boost archaeal nitrifiers, collectively transforming wetland soils to a greater source of N2O.
AB - Wetland soils are the greatest source of nitrous oxide (N2O), a critical greenhouse gas and ozone depleter released by microbes. Yet, microbial players and processes underlying the N2O emissions from wetland soils are poorly understood. Using in situ N2O measurements and by determining the structure and potential functional of microbial communities in 645 wetland soil samples globally, we examined the potential role of archaea, bacteria, and fungi in nitrogen (N) cycling and N2O emissions. We show that N2O emissions are higher in drained and warm wetland soils, and are correlated with functional diversity of microbes. We further provide evidence that despite their much lower abundance compared to bacteria, nitrifying archaeal abundance is a key factor explaining N2O emissions from wetland soils globally. Our data suggest that ongoing global warming and intensifying environmental change may boost archaeal nitrifiers, collectively transforming wetland soils to a greater source of N2O.
UR - http://www.scopus.com/inward/record.url?scp=85126516057&partnerID=8YFLogxK
U2 - 10.1038/s41467-022-29161-3
DO - 10.1038/s41467-022-29161-3
M3 - Article
SN - 2041-1723
VL - 13
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 1430
ER -