7130
doi
10.1126/science.1222700
oai:zenodo.org:7130
user-eu
Foster, Rachel A.
Max-Planck-Institut für Marine Mikrobiologie, Bremen, Germany D-28359.
Krupke, Andreas
Max-Planck-Institut für Marine Mikrobiologie, Bremen, Germany D-28359.
Carter, Brandon J.
Ocean Sciences, University of California, Santa Cruz, CA 95064, USA.
Musat, Niculina
Max-Planck-Institut für Marine Mikrobiologie, Bremen, Germany D-28359.
Vaulot, Daniel
UPMC (Paris-06) and CNRS, UMR 7144, Station Biologique, Place G. Tessier 29680 Roscoff, France.
Kuypers, Marcel M.M.
Max-Planck-Institut für Marine Mikrobiologie, Bremen, Germany D-28359.
Zehr, Jonathan P.
Ocean Sciences, University of California, Santa Cruz, CA 95064, USA.
Unicellular Cyanobacterium Symbiotic with a Single-Celled Eukaryotic Alga
Thompson, Anne W.
Ocean Sciences, University of California, Santa Cruz, CA 95064, USA.
info:eu-repo/semantics/restrictedAccess
Symbioses between nitrogen (N)2–fixing prokaryotes and photosynthetic eukaryotes are important for nitrogen acquisition in N-limited environments. Recently, a widely distributed planktonic uncultured nitrogen-fixing cyanobacterium (UCYN-A) was found to have unprecedented genome reduction, including the lack of oxygen-evolving photosystem II and the tricarboxylic acid cycle, which suggested partnership in a symbiosis. We showed that UCYN-A has a symbiotic association with a unicellular prymnesiophyte, closely related to calcifying taxa present in the fossil record. The partnership is mutualistic, because the prymnesiophyte receives fixed N in exchange for transferring fixed carbon to UCYN-A. This unusual partnership between a cyanobacterium and a unicellular alga is a model for symbiosis and is analogous to plastid and organismal evolution, and if calcifying, may have important implications for past and present oceanic N2 fixation.
Zenodo
2012-09-21
info:eu-repo/semantics/article
641604
user-eu
award_title=Marine Microbial Biodiversity, Bioinformatics and Biotechnology; award_number=287589; award_identifiers_scheme=url; award_identifiers_identifier=https://cordis.europa.eu/projects/287589; funder_id=00k4n6c32; funder_name=European Commission;
1579542167.116818
public
Science
337
1546-1550
2012-09-21