A1 Journal article (refereed)
New insight to the role of microbes in the methane exchange in trees : evidence from metagenomic sequencing (2021)
Putkinen, A., Siljanen, H. M., Laihonen, A., Paasisalo, I., Porkka, K., Tiirola, M., Haikarainen, I., Tenhovirta, S., & Pihlatie, M. (2021). New insight to the role of microbes in the methane exchange in trees : evidence from metagenomic sequencing. New Phytologist, 231(2), 524-536. https://doi.org/10.1111/nph.17365
JYU authors or editors
Publication details
All authors or editors: Putkinen, Anuliina; Siljanen, Henri M.P.; Laihonen, Antti; Paasisalo, Inga; Porkka, Kaija; Tiirola, Marja; Haikarainen, Iikka; Tenhovirta, Salla; Pihlatie, Mari
Journal or series: New Phytologist
ISSN: 0028-646X
eISSN: 1469-8137
Publication year: 2021
Publication date: 29/03/2021
Volume: 231
Issue number: 2
Pages range: 524-536
Publisher: Wiley-Blackwell
Publication country: United Kingdom
Publication language: English
DOI: https://doi.org/10.1111/nph.17365
Publication open access: Openly available
Publication channel open access: Partially open access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/77084
Abstract
Methane (CH4) exchange in tree stems and canopies and the processes involved are among the least understood components of the global CH4 cycle. Recent studies have focused on quantifying tree stems as sources of CH4 and understanding abiotic CH4 emissions in plant canopies, with the role of microbial in situ CH4 formation receiving less attention. Moreover, despite initial reports revealing CH4 consumption, studies have not adequately evaluated the potential of microbial CH4 oxidation within trees. In this paper, we discuss the current level of understanding on these processes. Further, we demonstrate the potential of novel metagenomic tools in revealing the involvement of microbes in the CH4 exchange of plants, and particularly in boreal trees. We detected CH4 producing methanogens and novel monooxygenases, potentially involved in CH4 consumption, in coniferous plants. In addition, our field flux measurements from Norway spruce (Picea abies) canopies demonstrate both net CH4 emissions and uptake, giving further evidence that both production and consumption are relevant to the net CH4 exchange. Our findings, together with the emerging diversity of novel CH4 producing microbial groups, strongly suggest microbial analyses should be integrated in the studies aiming to reveal the processes and drivers behind plant CH4 exchange.
Keywords: forests; boreal zone; biogeochemical cycles; methane; trees; plant physiology; microbiome; archaebacteria; bacteria; genomics
Free keywords: boreal forests; captured metagenomics; methane exchange; methanogenic archaea; methanotrophic bacteria; plant microbiome; tree
Contributing organizations
Related projects
- Discovering microbes degrading recalcitrant nanomaterials - a novel toolbox to turn metagenomics into metaphenomics (DISCOVER-ME)
- Tiirola, Marja
- Research Council of Finland
Ministry reporting: Yes
Reporting Year: 2021
JUFO rating: 2