English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

Carbon recycling efficiency and phosphate turnover by marine nitrifying archaea

MPS-Authors
/persons/resource/persons210756

Schoffelen,  Niels Josephe
Department of Biogeochemistry, Max Planck Institute for Marine Microbiology, Max Planck Society;

/persons/resource/persons210363

Ferdelman,  Timothy G.
Department of Biogeochemistry, Max Planck Institute for Marine Microbiology, Max Planck Society;

/persons/resource/persons257349

Re­bel­lo,  Os­mond
Department of Biogeochemistry, Max Planck Institute for Marine Microbiology, Max Planck Society;

/persons/resource/persons256767

Khachikyan,  Alexander
IMPRS MarMic, Max Planck Institute for Marine Microbiology, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Meador, T. B., Schoffelen, N. J., Ferdelman, T. G., Re­bel­lo, O., Khachikyan, A., & Koenneke, M. (2020). Carbon recycling efficiency and phosphate turnover by marine nitrifying archaea. Science Advances, 6(19): eaba1799. doi:10.1126/sciadv.aba1799.


Cite as: https://hdl.handle.net/21.11116/0000-0006-B6DD-4
Abstract
Thaumarchaeotal nitrifiers are among the most abundant organisms in the
ocean, but still unknown is the carbon (C) yield from nitrification and
the coupling of these fluxes to phosphorus (P) turnover and release of
metabolites from the cell. Using a dual radiotracer approach, we found
that Nitrosopumilus maritimus fixed roughly 0.3 mol C, assimilated 2
mmol P, and released ca. 10(-2) mol C and 10(-5) mol P as dissolved
organics (DOC and DOP) per mole ammonia respired. Phosphate turnover may
influence assimilation fluxes by nitrifiers in the euphotic zone, which
parallel those of the dark ocean. Collectively, marine nitrifiers
assimilate up to 2 Pg C year(-1) and 0.05 Pg P year(-1) and thereby
recycle roughly 5% of mineralized C and P into marine biomass. Release
of roughly 50 Tg DOC and 0.2 Tg DOP by thaumarchaea each year represents
a small but fresh input of reduced substrates throughout the ocean.