Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Unicellular cyanobacterium symbiotic with a single-celled eukaryotic alga
Autor Thompson, A.W.; Foster, R.A.; Krupke, A.; Carter, B.J.; Musat, N.; Vaulot, D.; Kuypers, M.M.M.; Zehr, J.P.;
Journal / Serie Science
Erscheinungsjahr 2012
Department ISOBIO;
Band/Volume 337
Heft 6101
Sprache englisch;
Abstract 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.

ID 13039
dauerhafte UFZ-Verlinkung
Thompson, A.W., Foster, R.A., Krupke, A., Carter, B.J., Musat, N., Vaulot, D., Kuypers, M.M.M., Zehr, J.P. (2012):
Unicellular cyanobacterium symbiotic with a single-celled eukaryotic alga
Science 337 (6101), 1546 - 1550