Sökning: onr:"swepub:oai:DiVA.org:lnu-72636" >
Unusual marine unic...
Unusual marine unicellular symbiosis with the nitrogen-fixing cyanobacterium UCYN-A
-
- Zehr, Jonathan P. (författare)
- University of California, USA
-
- Shilova, Irina N. (författare)
- University of California, USA
-
- Farnelid, Hanna, 1983- (författare)
- Linnéuniversitetet,Institutionen för biologi och miljö (BOM),University of California, USA,Ctr Ecol & Evolut Microbial Model Syst EEMiS
-
visa fler...
-
- Muñoz-Marín, Maria del Carmen (författare)
- University of California, USA;University of Córdoba, Spain
-
- Turk-Kubo, Kendra A. (författare)
- University of California, USA
-
visa färre...
-
(creator_code:org_t)
- 2016-12-20
- 2017
- Engelska.
-
Ingår i: Nature Microbiology. - : Nature Publishing Group. - 2058-5276. ; 2:1, s. 1-10
- Relaterad länk:
-
https://escholarship...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Nitrogen fixation — the reduction of dinitrogen (N2) gas to biologically available nitrogen (N) — is an important source of N for terrestrial and aquatic ecosystems. In terrestrial environments, N2-fixing symbioses involve multicellular plants, but in the marine environment these symbioses occur with unicellular planktonic algae. An unusual symbiosis between an uncultivated unicellular cyanobacterium (UCYN-A) and a haptophyte picoplankton alga was recently discovered in oligotrophic oceans. UCYN-A has a highly reduced genome, and exchanges fixed N for fixed carbon with its host. This symbiosis bears some resemblance to symbioses found in freshwater ecosystems. UCYN-A shares many core genes with the ‘spheroid bodies’ of Epithemia turgida and the endosymbionts of the amoeba Paulinella chromatophora. UCYN-A is widely distributed, and has diversified into a number of sublineages that could be ecotypes. Many questions remain regarding the physical and genetic mechanisms of the association, but UCYN-A is an intriguing model for contemplating the evolution of N2-fixing organelles.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- Applied microbiology
- Ecology
- Microbial biooceanography
- Microbial ecology
- Symbiosis
- Mikrobiologi
- Microbiology
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas