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Photosynthesis‐driven methane production in oxic lake water as an important contributor to methane emission

MARCO GUNTHEL, Isabell Klawonn, Jason Woodhouse, Mina Bižić, Danny Ionescu, Lars Ganzert Orcid Logo, Steffen Kümmel, Ivonne Nijenhuis Orcid Logo, Luca Zoccarato, Hans‐Peter Grossart Orcid Logo, Kam Tang Orcid Logo

Limnology and Oceanography, Volume: 65, Issue: 12, Pages: 2853 - 2865

Swansea University Authors: MARCO GUNTHEL, Kam Tang Orcid Logo

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DOI (Published version): 10.1002/lno.11557

Abstract

The discovery of methane production in oxic waters challenges the paradigm of strict anoxic requirement for biological methanogenesis. We usd field measurements and incubation experiments to show that oxic-water CH4 production occurred in Lake Stechlin was associated with phytoplankton especially di...

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Published in: Limnology and Oceanography
ISSN: 0024-3590 1939-5590
Published: Wiley 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa54500
first_indexed 2020-06-18T03:10:14Z
last_indexed 2024-11-14T12:06:40Z
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spelling 2023-05-19T14:58:03.7728594 v2 54500 2020-06-17 Photosynthesis‐driven methane production in oxic lake water as an important contributor to methane emission 53b95404bdc1d2930447f9e6ee4d06ca MARCO GUNTHEL MARCO GUNTHEL true false 69af43a3b9da24aef65c5d3a44956fe3 0000-0001-9427-9564 Kam Tang Kam Tang true false 2020-06-17 The discovery of methane production in oxic waters challenges the paradigm of strict anoxic requirement for biological methanogenesis. We usd field measurements and incubation experiments to show that oxic-water CH4 production occurred in Lake Stechlin was associated with phytoplankton especially diatoms, cyanobacteria, green algae and cryptophytes. Using 13C-labeling techniques we showed that bicarbonate was converted to CH4, and the production exceeded oxidation during daytime. These experimental and field data together indicate a clear link between photosynthesis and oxic CH4 production. Our results suggest that the oxic CH4 source significantly contributed to surface emission in Lake Stechlin, and call for re-examination of the aquatic CH4 cycle and climate predictions. Journal Article Limnology and Oceanography 65 12 2853 2865 Wiley 0024-3590 1939-5590 oxic methane source, photosynthesis, phosphorus, atmospheric CH4 emission, lakes 1 12 2020 2020-12-01 10.1002/lno.11557 http://dx.doi.org/10.1002/lno.11557 COLLEGE NANME COLLEGE CODE Swansea University 2023-05-19T14:58:03.7728594 2020-06-17T18:59:52.0646654 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences MARCO GUNTHEL 1 Isabell Klawonn 2 Jason Woodhouse 3 Mina Bižić 4 Danny Ionescu 5 Lars Ganzert 0000-0001-9595-1041 6 Steffen Kümmel 7 Ivonne Nijenhuis 0000-0001-9737-9501 8 Luca Zoccarato 9 Hans‐Peter Grossart 0000-0002-9141-0325 10 Kam Tang 0000-0001-9427-9564 11 54500__17802__6fb2a6ab4f6349f8b7a8394079bad396.pdf lno.11557.pdf 2020-07-29T10:16:52.4621112 Output 1345453 application/pdf Version of Record true Released under the terms of a Creative Commons Attribution License (CC-BY). true eng http://creativecommons.org/licenses/by/4.0/
title Photosynthesis‐driven methane production in oxic lake water as an important contributor to methane emission
spellingShingle Photosynthesis‐driven methane production in oxic lake water as an important contributor to methane emission
MARCO GUNTHEL
Kam Tang
title_short Photosynthesis‐driven methane production in oxic lake water as an important contributor to methane emission
title_full Photosynthesis‐driven methane production in oxic lake water as an important contributor to methane emission
title_fullStr Photosynthesis‐driven methane production in oxic lake water as an important contributor to methane emission
title_full_unstemmed Photosynthesis‐driven methane production in oxic lake water as an important contributor to methane emission
title_sort Photosynthesis‐driven methane production in oxic lake water as an important contributor to methane emission
author_id_str_mv 53b95404bdc1d2930447f9e6ee4d06ca
69af43a3b9da24aef65c5d3a44956fe3
author_id_fullname_str_mv 53b95404bdc1d2930447f9e6ee4d06ca_***_MARCO GUNTHEL
69af43a3b9da24aef65c5d3a44956fe3_***_Kam Tang
author MARCO GUNTHEL
Kam Tang
author2 MARCO GUNTHEL
Isabell Klawonn
Jason Woodhouse
Mina Bižić
Danny Ionescu
Lars Ganzert
Steffen Kümmel
Ivonne Nijenhuis
Luca Zoccarato
Hans‐Peter Grossart
Kam Tang
format Journal article
container_title Limnology and Oceanography
container_volume 65
container_issue 12
container_start_page 2853
publishDate 2020
institution Swansea University
issn 0024-3590
1939-5590
doi_str_mv 10.1002/lno.11557
publisher Wiley
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
url http://dx.doi.org/10.1002/lno.11557
document_store_str 1
active_str 0
description The discovery of methane production in oxic waters challenges the paradigm of strict anoxic requirement for biological methanogenesis. We usd field measurements and incubation experiments to show that oxic-water CH4 production occurred in Lake Stechlin was associated with phytoplankton especially diatoms, cyanobacteria, green algae and cryptophytes. Using 13C-labeling techniques we showed that bicarbonate was converted to CH4, and the production exceeded oxidation during daytime. These experimental and field data together indicate a clear link between photosynthesis and oxic CH4 production. Our results suggest that the oxic CH4 source significantly contributed to surface emission in Lake Stechlin, and call for re-examination of the aquatic CH4 cycle and climate predictions.
published_date 2020-12-01T07:42:45Z
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