FN Archimer Export Format
PT J
TI Investigating the microbial ecology of coastal hotspots of marine nitrogen fixation in the western North Atlantic
BT 
AF Wang, Seaver
   Tang, Weiyi
   Delage, Erwan
   Gifford, Scott
   Whitby, Hannah
   González, Aridane G.
   Eveillard, Damien
   Planquette, Helene
   Cassar, Nicolas
AS 1:1;2:2;3:3;4:4;5:5;6:6,7;7:3;8:7;9:1,7;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;
C1 Division of Earth and Ocean Sciences, Duke University, Grainger Environment Hall, 9 Circuit Drive, Box 90328, Durham, NC, 27708, USA
   Department of Geosciences, Princeton University, Princeton, NJ, USA
   LS2N, UMR 6004, CNRS, Université de Nantes, 44000, Nantes, France
   Department of Marine Sciences, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
   Department of Earth, Ocean, and Ecological Sciences, School of Environmental Sciences, University of Liverpool, Liverpool, UK
   Instituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria, ULPGC, Las Palmas, Spain
   Laboratoire des Sciences de l’Environnement Marin (LEMAR), Institut Universitaire Européen de la Mer (IUEM), Technopôle Brest-Iroise, 13 Plouzané, 29280, Locmaria-Plouzané, France
C2 UNIV DUKE, USA
   UNIV PRINCETON, USA
   UNIV NANTES, FRANCE
   UNIV NORTH CAROLINA CHAPEL HILL, USA
   UNIV LIVERPOOL, UK
   UNIV LAS PALMAS GRAN CANARIA, SPAIN
   CNRS, FRANCE
UM LEMAR
IN WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-europe
   copubli-univ-france
   copubli-int-hors-europe
IF 4.997
TC 4
UR https://archimer.ifremer.fr/doc/00685/79677/82454.pdf
   https://archimer.ifremer.fr/doc/00685/79677/82455.docx
LA English
DT Article
AB Variation in the microbial cycling of nutrients and carbon in the ocean is an emergent property of complex planktonic communities. While recent findings have considerably expanded our understanding of the diversity and distribution of nitrogen (N2) fixing marine diazotrophs, knowledge gaps remain regarding ecological interactions between diazotrophs and other community members. Using quantitative 16S and 18S V4 rDNA amplicon sequencing, we surveyed eukaryotic and prokaryotic microbial communities from samples collected in August 2016 and 2017 across the Western North Atlantic. Leveraging and significantly expanding an earlier published 2015 molecular dataset, we examined microbial community structure and ecological co-occurrence relationships associated with intense hotspots of N2 fixation previously reported at sites off the Southern New England Shelf and Mid-Atlantic Bight. Overall, we observed a negative relationship between eukaryotic diversity and both N2 fixation and net community production (NCP). Maximum N2 fixation rates occurred at sites with high abundances of mixotrophic stramenopiles, notably Chrysophyceae. Network analysis revealed such stramenopiles to be keystone taxa alongside the haptophyte diazotroph host Braarudosphaera bigelowii and chlorophytes. Our findings highlight an intriguing relationship between marine stramenopiles and high N2 fixation coastal sites. 
PY 2021
PD MAR
SO Scientific Reports
SN 2045-2322
PU Springer Science and Business Media LLC
VL 11
IS 1
UT 000630479700020
DI 10.1038/s41598-021-84969-1
ID 79677
ER

EF