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No evidence of ligh...
No evidence of light inhibition on aerobic methanotrophs in coastal sediments using eDNA and eRNA
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- Broman, Elias, 1985- (author)
- Stockholms universitet,Institutionen för ekologi, miljö och botanik,Stockholms universitets Östersjöcentrum
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- Barua, Rinti (author)
- Stockholms universitet,Institutionen för ekologi, miljö och botanik
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- Donald, Daniel (author)
- Tvärminne Zoological Station, Faculty of Biological of Environmental Sciences University of Helsinki Helsinki Finland
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- Roth, Florian (author)
- Stockholms universitet,Stockholms universitets Östersjöcentrum
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- Humborg, Christoph (author)
- Stockholms universitet,Baltic Nest Institute
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- Norkko, Alf (author)
- Stockholms universitet,Stockholms universitets Östersjöcentrum,Baltic Sea Centre Stockholm University Stockholm Sweden;Tvärminne Zoological Station, Faculty of Biological of Environmental Sciences University of Helsinki Helsinki Finland
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- Jilbert, Tom (author)
- Tvärminne Zoological Station, Faculty of Biological of Environmental Sciences University of Helsinki Helsinki Finland; Environmental Geochemistry Group, Department of Geosciences and Geography, Faculty of Science University of Helsinki Helsinki Finland
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- Bonaglia, Stefano, 1983 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences,Department of Marine Sciences, University of Gothenburg, Gothenburg, Sweden
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- Nascimento, Francisco J. A., 1965- (author)
- Stockholms universitet,Institutionen för ekologi, miljö och botanik,Stockholms universitets Östersjöcentrum,Institutionen för geologiska vetenskaper,Fysikum
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Environmental DNA. - 2637-4943. ; 5:4, s. 766-781
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Abstract
Subject headings
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- It is estimated that up to half of global methane (CH4) emissions are derived from microbial processes in aquatic ecosystems. However, it is not fully understood which factors explain the spatial and temporal variability of these emissions. For example, light has previously been shown to both inhibit and stimulate aerobic methane-oxidizing bacteria (i.e., methanotrophs) in the water column. These contrasting results indicate that the mechanisms that light has on CH4 oxidation are not yet clearly known, even less so for benthic aerobic methanotrophs. Here, we tested whether light reaching the seafloor can inhibit methanotrophic activity on the sediment surface. We sampled and distributed over 40 intact sediment cores from two coastal sites (illuminated 10 m, and a dark site at 33 m water depth) into 0, 50, and 100 PAR light treatments. After 10 days, we found no difference between treatments for each site in pore-water CH4 concentrations, relative abundance of aerobic methanotrophs, or the number of RNA transcripts related to methane oxidation. Our results suggest that light attenuation in coastal waters does not significantly affect aerobic methanotrophs in coastal sediments.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geokemi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geochemistry (hsv//eng)
Keyword
- benthic
- DNA
- methane
- PAR
- pmoA
- RNA
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Broman, Elias, 1 ...
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Barua, Rinti
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Donald, Daniel
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Roth, Florian
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Humborg, Christo ...
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Norkko, Alf
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Jilbert, Tom
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Bonaglia, Stefan ...
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Nascimento, Fran ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Environmental Sc ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Ecology
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Geochemistry
- Articles in the publication
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Environmental DN ...
- By the university
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University of Gothenburg
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Stockholm University