lnu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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
Major Effect of Hydrogen Peroxide on Bacterioplankton Metabolism in the Northeast Atlantic
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science. (EEMiS)
University of Vienna, Austria.
University of Vienna, Austria ; Royal Netherlands Institute for Sea Research (NIOZ), The Netherlands.
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science. (EEMiS)ORCID iD: 0000-0002-6405-1347
2013 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 8, no 4, e61051Article in journal (Refereed) Published
Abstract [en]

Reactive oxygen species such as hydrogen peroxide have the potential to alter metabolic rates of marine prokaryotes, ultimately impacting the cycling and bioavailability of nutrients and carbon. We studied the influence of H2O2 on prokaryotic heterotrophic production (PHP) and extracellular enzymatic activities (i.e., beta-glucosidase [BGase], leucine aminopeptidase [LAPase] and alkaline phosphatase [APase]) in the subtropical Atlantic. With increasing concentrations of H2O2 in the range of 100-1000 nM, LAPase, APase and BGase were reduced by up to 11, 23 and 62%, respectively, in the different water layers. Incubation experiments with subsurface waters revealed a strong inhibition of all measured enzymatic activities upon H2O2 amendments in the range of 10-500 nM after 24 h. H2O2 additions also reduced prokaryotic heterotrophic production by 36-100% compared to the rapid increases in production rates occurring in the unamended controls. Our results indicate that oxidative stress caused by H2O2 affects prokaryotic growth and hydrolysis of specific components of the organic matter pool. Thus, we suggest that oxidative stress may have important consequences on marine carbon and energy fluxes.

Place, publisher, year, edition, pages
2013. Vol. 8, no 4, e61051
National Category
Oceanography, Hydrology, Water Resources Ecology
Research subject
Ecology, Aquatic Ecology
Identifiers
URN: urn:nbn:se:lnu:diva-25366DOI: 10.1371/journal.pone.0061051ISI: 000317385300045OAI: oai:DiVA.org:lnu-25366DiVA: diva2:616983
Available from: 2013-04-20 Created: 2013-04-20 Last updated: 2016-07-20Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Baltar, FedericoPinhassi, Jarone
By organisation
Department of Biology and Environmental Science
In the same journal
PLoS ONE
Oceanography, Hydrology, Water ResourcesEcology

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 103 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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