FN Archimer Export Format
PT J
TI Mangrove microbiota along the urban-to-rural gradient of the Cayenne estuary (French Guiana, South America): Drivers and potential bioindicators
BT 
AF Fiard, Maud
   Cuny, Philippe
   Sylvi, Léa
   Hubas, Cédric
   Jézéquel, Ronan
   Lamy, Dominique
   Walcker, Romain
   Houssainy, Amonda El
   Heimbürger-Boavida, Lars-Eric
   Robinet, Tony
   Bihannic, Isabelle
   Gilbert, Franck
   Michaud, Emma
   Dirberg, Guillaume
   Militon, Cécile
AS 1:1;2:1;3:1;4:2;5:3;6:4;7:5;8:1;9:1;10:2;11:6;12:5;13:6;14:7;15:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;
C1 Aix Marseille Univ., Université de Toulon, CNRS, IRD, MIO, 13288 Marseille, France
   Biologie des Organismes et Ecosystèmes Aquatiques (UMR 8067 BOREA) Muséum National D'Histoire Naturelle, CNRS, Sorbonne Université, IRD, UCN, UA, Station Marine de Concarneau, 29900 Concarneau, France
   CEDRE, Rue Alain Colas, 29218 Brest CEDEX 2, France
   Institute of Ecology and Environmental Sciences of Paris (iEES-Paris), Sorbonne Université, Univ Paris Est Créteil, IRD, CNRS, INRA, 4 place Jussieu, 75005 Paris, France
   Laboratoire Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, Toulouse, France
   Univ Brest, CNRS, IRD, Ifremer, LEMAR, 29280 Plouzané, France
   Biologie des Organismes et Ecosystèmes Aquatiques (UMR 8067 BOREA) Muséum National D'Histoire Naturelle, CNRS, Sorbonne Université, IRD, UCN, UA, Rue Buffon, 75005 Paris, France
C2 UNIV AIX MARSEILLE, FRANCE
   MNHN, FRANCE
   CEDRE, FRANCE
   UNIV SORBONNE, FRANCE
   UNIV TOULOUSE, FRANCE
   UBO, FRANCE
   MNHN, FRANCE
UM LEMAR
IN WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
IF 9.8
TC 9
UR https://archimer.ifremer.fr/doc/00725/83677/88724.pdf
LA English
DT Article
DE ;Estuarine mangrove sediments;French Guiana;Low organic matter enrichment;Organochlorine contaminants;PAHs contamination
AB The microbial communities inhabiting the Atlantic-East Pacific (AEP) mangroves have been poorly studied, and mostly comprise chronically polluted mangroves. In this study, we characterized changes in the structure and diversity of microbial communities of mangroves along the urban-to-rural gradient of the Cayenne estuary (French Guiana, South America) that experience low human impact. The microbial communities were assigned into 50 phyla. Proteobacteria, Chloroflexi, Acidobacteria, Bacteroidetes, and Planctomycetes were the most abundant taxa. The environmental determinants found to significantly correlated to the microbial communities at these mangroves were granulometry, dieldrin concentration, pH, and total carbon (TC) content. Furthermore, a precise analysis of the sediment highlights the existence of three types of anthropogenic pressure among the stations: (i) organic matter (OM) enrichment due to the proximity to the city and its wastewater treatment plant, (ii) dieldrin contamination, and (iii) naphthalene contamination. These forms of weak anthropogenic pressure seemed to impact the bacterial population size and microbial assemblages. A decrease in Bathyarchaeota, “Candidatus Nitrosopumilus”, and Nitrospira genera was observed in mangroves subjected to OM enrichment. Mangroves polluted with organic contaminants were enriched in Desulfobacteraceae, Desulfarculaceae, and Acanthopleuribacteraceae (with dieldrin or polychlorobiphenyl contamination), and Chitinophagaceae and Geobacteraceae (with naphthalene contamination). These findings provide insights into the main environmental factors shaping microbial communities of mangroves in the AEP that experience low human impact and allow for the identification of several potential microbial bioindicators of weak anthropogenic pressure. 
PY 2022
PD FEB
SO Science Of The Total Environment
SN 0048-9697
PU Elsevier BV
VL 807
IS Part. 1
UT 000707663100003
DI 10.1016/j.scitotenv.2021.150667
ID 83677
ER

EF