FN Archimer Export Format
PT J
TI Quorum Sensing Regulates the Hydrolytic Enzyme Production and Community Composition of Heterotrophic Bacteria in Coastal Waters
BT 
AF Urvoy, Marion
   Lami, Raphaël
   Dreanno, Catherine
   DELMAS, Daniel
   L’Helguen, Stéphane
   Labry, Claire
AS 1:1,2;2:3;3:4;4:1;5:2;6:1;
FF 1:;2:;3:PDG-REM-RDT-LDCM;4:PDG-ODE-DYNECO-PELAGOS;5:;6:PDG-ODE-DYNECO-PELAGOS;
C1 Ifremer, DYNECO, Plouzané, France
   Université de Bretagne Occidentale, CNRS, IRD, Ifremer, UMR 6539, Laboratoire des Sciences de l’Environnement Marin (LEMAR), Plouzané, France
   Sorbonne Université, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM, USR 3579), Observatoire Océanologique de Banyuls, Banyuls-sur-Mer, France
   Ifremer, RDT, Plouzané, France
C2 IFREMER, FRANCE
   UBO, FRANCE
   UNIV SORBONNE, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-ODE-DYNECO-PELAGOS
   PDG-REM-RDT-LDCM
UM LEMAR
IN WOS Ifremer UPR
   WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-univ-france
IF 6.064
TC 3
UR https://archimer.ifremer.fr/doc/00740/85211/90223.pdf
   https://archimer.ifremer.fr/doc/00740/85211/90224.docx
LA English
DT Article
DE ;hydrolytic enzymes;bacterial community composition;quorum sensing;N-acylhomoserine lactone;coastal waters
AB Heterotrophic microbial communities play a central role in biogeochemical cycles in the ocean by degrading organic matter through the synthesis of extracellular hydrolytic enzymes. Their hydrolysis rates result from the community’s genomic potential and the differential expression of this genomic potential. Cell-cell communication pathways such as quorum sensing (QS) could impact both aspects and, consequently, structure marine ecosystem functioning. However, the role of QS communications in complex natural assemblages remains largely unknown. In this study, we investigated whether N-acylhomoserine lactones (AHLs), a type of QS signal, could regulate both hydrolytic activities and the bacterial community composition (BCC) of marine planktonic assemblages. To this extent, we carried out two microcosm experiments, adding five different AHLs to bacterial communities sampled in coastal waters (during early and peak bloom) and monitoring their impact on enzymatic activities and diversity over 48 h. Several specific enzymatic activities were impacted during both experiments, as early as 6 h after the AHL amendments. The BCC was also significantly impacted by the treatments after 48 h, and correlated with the expression of the hydrolytic activities, suggesting that changes in hydrolytic intensities may drive changes in BCC. Overall, our results suggest that QS communication could participate in structuring both the function and diversity of marine bacterial communities. 
PY 2021
PD DEC
SO Frontiers In Microbiology
SN 1664-302X
PU Frontiers Media SA
VL 12
UT 000741437300001
DI 10.3389/fmicb.2021.780759
ID 85211
ER

EF