Umeå University's logo

umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Extensive prokaryotic maintenance respiration in the sea influenced by osmoregulation
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences. Umeå University, Faculty of Science and Technology, Umeå Marine Sciences Centre (UMF). (UMFpub; EcoChange)
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
2023 (English)In: Frontiers in Marine Science, E-ISSN 2296-7745, Vol. 10, article id 1070070Article in journal (Refereed) Published
Abstract [en]

Microbial respiration is the major process consuming oxygen in the biosphere. The relative energy demand from growth of biomass or maintenance activities determines the regulation of respiration with impact on how the development of hypoxia and CO2 emissions is controlled. This coupling is crucial for understanding the life history and associated ecological interactions of microorganisms. However, the knowledge of rate and regulating factors of maintenance respiration in the biosphere is limited. In this study, we demonstrated significant relationships in marine field samples where the prokaryotic specific growth rate predicts cell-specific respiration, in accordance with theory from culture models, over a 10-fold salinity range. This enables the first reported direct estimates of maintenance respiration in nature to show a 6-fold variation between 0.12-0.62 fmol O2 cell-1 d-1, comprising 29-72% of prokaryotic specific respiration. The lowest maintenance respiration occurred at salinity close to physiological osmolarity, suggesting osmoregulation as one of the more energy-consuming maintenance activities. A conservative global estimate of maintenance respiration accounted for 66% of the total prokaryotic respiration in the ocean´s mixed layer. This means that maintenance activities dominate the use of the energy generated by prokaryotic respiration in the sea, where osmoregulation is one significant energy consumer. Consequently, maintenance respiration and its regulation must be included in ecological and biogeochemical models to accurately project and manage the development of hypoxia and CO2 emissions from the ocean.

Place, publisher, year, edition, pages
Frontiers Media S.A., 2023. Vol. 10, article id 1070070
Keywords [en]
bacterioplankton, CO2, growth, maintenance, oxygen, regulation, respiration, salinity
National Category
Ecology Oceanography, Hydrology and Water Resources
Identifiers
URN: urn:nbn:se:umu:diva-206345DOI: 10.3389/fmars.2023.1070070ISI: 000955369700001Scopus ID: 2-s2.0-85150697947OAI: oai:DiVA.org:umu-206345DiVA, id: diva2:1753650
Funder
The Kempe Foundations, SMK-1854Ecosystem dynamics in the Baltic Sea in a changing climate perspective - ECOCHANGE, 224-919-09
Note

Errata: Wikner J and Vikström K (2023) Corrigendum: Extensive prokaryotic maintenance respiration in the sea influenced by osmoregulation. Front. Mar. Sci. 10:1289152. doi: 10.3389/fmars.2023.1289152

Available from: 2023-04-28 Created: 2023-04-28 Last updated: 2024-02-07Bibliographically approved

Open Access in DiVA

fulltext(1055 kB)95 downloads
File information
File name FULLTEXT01.pdfFile size 1055 kBChecksum SHA-512
4e6d162aaa863564501d3e0dde3e801d19a5fea424482ac17164c646f1d70615d9bd2cc4fc44563105de9db1bcdec5bfb5d4879db0fa00a7d4338c1707af5dfe
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Authority records

Wikner, JohanVikström, Kevin

Search in DiVA

By author/editor
Wikner, JohanVikström, Kevin
By organisation
Department of Ecology and Environmental SciencesUmeå Marine Sciences Centre (UMF)
In the same journal
Frontiers in Marine Science
EcologyOceanography, Hydrology and Water Resources
Wikner, J. & Vikström, K. (2024). Prokaryotic respiration and growth in Baltic and north Seas 2017. PANGAEA

Search outside of DiVA

GoogleGoogle Scholar
Total: 96 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 237 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf