The influence of lipid content and taxonomic affiliation on methane and carbon dioxide production from phytoplankton biomass in lake sediment
Hiltunen, M., Nykänen, H., & Syväranta, J. (2021). The influence of lipid content and taxonomic affiliation on methane and carbon dioxide production from phytoplankton biomass in lake sediment. Limnology and Oceanography, 66(5), 1915-1925. https://doi.org/10.1002/lno.11732
Julkaistu sarjassa
Limnology and OceanographyPäivämäärä
2021Tekijänoikeudet
© 2021 The Authors. Limnology and Oceanography published by Wiley Periodicals LLC on
behalf of Association for the Sciences of Limnology and Oceanography
The greenhouse gases methane (CH4) and carbon dioxide (CO2) are end products of microbial anaerobic degradation of organic matter (OM) in lake sediments. Although previous research has shown that phytoplankton lipid content influences sediment methanogenesis, current understanding on how OM quality affects methanogenesis is still limited. Such information is needed to more accurately assess how lake greenhouse gas emissions may change in response to anthropogenic activities. We cultured 11 phytoplankton species from five classes and studied how taxonomic identity, C : N ratio, lipid content, and fatty acid composition of phytoplankton biomass affects the CH4 and net CO2 production in anaerobic lake sediments with an incubation experiment that lasted > 100 d. The carbon‐normalized potential CH4 (0.09–0.23 μmol mg C−1 d−1) and net CO2 (0.09–0.28 μmol mg C−1 d−1) production rates were not related to phytoplankton taxonomic affiliation (e.g., class, species), C : N ratio, or fatty acid composition of algal biomass. Methane or net CO2 production potentials did not increase with higher lipid content (10–30%); however, total fatty acid content had a weak correlation with CH4 production potential. In contrast to previous research, our results suggest that lipid content is of minor importance in determining methanogenesis rates from the biomass of multispecies phytoplankton communities settling on sediments. The decrease in CO2 concentration and the correlation between stable carbon isotope signatures of CH4 and molar ratio of CH4 and CO2 at the end of the experiment may indicate that importance of hydrogenotrophic methanogenesis, which uses CO2 when other substrates become limiting, increased during the long incubation.
...
Julkaisija
John Wiley & SonsISSN Hae Julkaisufoorumista
0024-3590Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/66427551
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Rahoittaja(t)
Suomen AkatemiaRahoitusohjelmat(t)
Tutkijatohtori, SALisätietoja rahoituksesta
Academy of Finland. Grant Numbers: 296918, 307238, 315163Lisenssi
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Ecosystem carbon response of an Arctic peatland to simulated permafrost thaw
Voigt, Carolina; Marushchak, Maija; Mastepanov, Mikhail; Lamprecht, Richard E.; Christensen, Torben R.; Dorodnikov, Maxim; Jackowicz‐Korczyński, Marcin; Lindgren, Amelie; Lohila, Annalea; Nykänen, Hannu; Oinonen, Markku; Oksanen, Timo; Palonen, Vesa; Treat, Claire C.; Martikainen, Pertti J.; Biasi, Christina (Wiley-Blackwell Publishing Ltd., 2019)Permafrost peatlands are biogeochemical hot spots in the Arctic as they store vast amounts of carbon. Permafrost thaw could release part of these long‐term immobile carbon stocks as the greenhouse gases (GHGs) carbon dioxide ... -
High organic carbon content constricts the potential for stable organic carbon accrual in mineral agricultural soils in Finland
Soinne, Helena; Hyyrynen, Matti; Jokubė, Medilė; Keskinen, Riikka; Hyväluoma, Jari; Pihlainen, Sampo; Hyytiäinen, Kari; Miettinen, Arttu; Rasa, Kimmo; Lemola, Riitta; Virtanen, Eetu; Heinonsalo, Jussi; Heikkinen, Jaakko (Elsevier, 2024)Sequestering carbon into agricultural soils is considered as a means of mitigating climate change. We used agronomic soil test results representing c. 95% of the farmed land area in Finland to estimate the potential of the ... -
Integrating Decomposers, Methane-Cycling Microbes and Ecosystem Carbon Fluxes Along a Peatland Successional Gradient in a Land Uplift Region
Juottonen, Heli; Kieman, Mirkka; Fritze, Hannu; Hamberg, Leena; Laine, Anna M.; Merilä, Päivi; Peltoniemi, Krista; Putkinen, Anuliina; Tuittila, Eeva-Stiina (Springer Science+Business Media, 2022)Peatlands are carbon dioxide (CO2) sinks that, in parallel, release methane (CH4). The peatland carbon (C) balance depends on the interplay of decomposer and CH4-cycling microbes, vegetation, and environmental conditions. ... -
Abundance and δ13C values of fatty acids in lacustrine surface sediments : Relationships with in-lake methane concentrations
Stötter, Tabea; Bastviken, David; Bodelier, Paul L.E.; van Hardenbroek, Maarten; Rinta, Päivi; Schilder, Johannes; Schubert, Carsten J.; Heiri, Oliver (Pergamon Press, 2018)Proxy-indicators in lake sediments provide the only approach by which the dynamics of in-lake methane cycling can be examined on multi-decadal to centennial time scales. This information is necessary to constrain how ... -
High-resolution spatial patterns and drivers of terrestrial ecosystem carbon dioxide, methane, and nitrous oxide fluxes in the tundra
Virkkala, Anna-Maria; Niittynen, Pekka; Kemppinen, Julia; Marushchak, Maija E.; Voigt, Carolina; Hensgens, Geert; Kerttula, Johanna; Happonen, Konsta; Tyystjärvi, Vilna; Biasi, Christina; Hultman, Jenni; Rinne, Janne; Luoto, Miska (Copernicus GmbH, 2024)Arctic terrestrial greenhouse gas (GHG) fluxes of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) play an important role in the global GHG budget. However, these GHG fluxes are rarely studied simultaneously, ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.