Plankton networks driving carbon export in the oligotrophic ocean

Type : ACL
Nature : Production scientifique
Au bénéfice du Laboratoire : Oui
Statut de publication : Publié
Année de publication : 2016
Auteurs (40) : GUIDI Lionel CHAFFRON Samuel BITTNER Lucie EVEILLARD Damien LARHLIMI Abdelhalim ROUX Simon DARZI Youssef AUDIC Stéphane BERLINE Léo BRUM Jennifer,r COELHO Luis,pedro ESPINOZA Julio,cesar,ignacio MALVIYA Shruti SUNAGAWA Shinichi DIMIER Céline KANDELS-LEWIS Stefanie PICHERAL Marc POULAIN Pierre-marie SEARSON Sarah TARA OCEANS CONSORTIUM Coordinators STEMMANN Lars NOT Fabrice HINGAMP Pascal SPEICH Sabrina FOLLOWS Mick KARP-BOSS Lee BOSS Emmanuel OGATA Hiroyuki PESANT Stéphane WEISSENBACH Jean WINCKER Patrick ACINAS Silvia,g BORK Peer DE VARGAS Colomban IUDICONE Daniele SULLIVAN Matthew,b RAES Jeroen KARSENTI Eric BOWLER Chris GORSKY Gabriel
Revue scientifique : Nature
Volume : 532
Fascicule : 7600
Pages : 465-470
DOI : 10.1038/nature16942
URL : http://dx.doi.org/10.1038/nature16942
Abstract : The biological carbon pump is the process by which CO2 is transformed to organic carbon via photosynthesis, exported through sinking particles, and finally sequestered in the deep ocean. While the intensity of the pump correlates with plankton community composition, the underlying ecosystem structure driving the process remains largely uncharacterized. Here we use environmental and metagenomic data gathered during the Tara Oceans expedition to improve our understanding of carbon export in the oligotrophic ocean. We show that specific plankton communities, from the surface and deep chlorophyll maximum, correlate with carbon export at 150 m and highlight unexpected taxa such as Radiolaria and alveolate parasites, as well as Synechococcus and their phages, as lineages most strongly associated with carbon export in the subtropical, nutrient-depleted, oligotrophic ocean. Additionally, we show that the relative abundance of a few bacterial and viral genes can predict a significant fraction of the variability in carbon export in these regions.
Mots-clés : -
Commentaire : -
Tags : TARA
Fichier attaché : -
Citation :
Guidi L, Chaffron S, Bittner L, Eveillard D, Larhlimi A, Roux S, Darzi Y, Audic S, Berline L, Brum JR, Coelho LP, Espinoza JCI, Malviya S, Sunagawa S, Dimier C, Kandels-Lewis S, Picheral M, Poulain P-M, Searson S, Tara Oceans Consortium C, Stemmann L, Not F, Hingamp P, Speich S, Follows M, Karp-Boss L, Boss E, Ogata H, Pesant S, Weissenbach J, Wincker P, Acinas SG, Bork P, De Vargas C, Iudicone D, Sullivan MB, Raes J, Karsenti E, Bowler C, Gorsky G (2016) Plankton networks driving carbon export in the oligotrophic ocean. Nature 532: 465-470 | doi: 10.1038/nature16942