[en] We studied the dynamic of dimethylsulfoniopropionate and its derivative dimethylsulfoxide in Posidonia oceanica. The annual average concentrations in leaves were 129 ± 39 μmol.g for DMSP and 5.0 ± 2.1 μmol.g for DMSO. DMSP and DMSO concentrations decreased from a maximum in the fall to a minimum in the summer and were mainly correlated to the seagrass leaf size. The similar variation of the two molecule concentrations suggested that DMSO content results from oxidation of DMSP. The DMSP:DMSO ratio, considered as indicator of stress in Spartina alterniflora, remained constant around a mean value of 27.7 μmol:μmol. More research is now needed to investigate the functions of DMSP and DMSO in seagrasses, how the DMSP:DMSO ratio will vary under disturbance and whether it is useful as indicator of stress.
Research Center/Unit :
Chemical Oceanography Unit
Disciplines :
Environmental sciences & ecology
Author, co-author :
Richir, Jonathan ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Chemical Oceanography Unit (AGO)
Champenois, Willy ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Chemical Oceanography Unit (AGO)
Engels, Guyliann
Abadie, Arnaud ; Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Océanographie biologique
Gobert, Sylvie ; Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Océanographie biologique
Lepoint, Gilles ; Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Océanographie biologique
Silva, João
Santos, Rui
Borges, Alberto ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Chemical Oceanography Unit (AGO)
Language :
English
Title :
Posidonia oceanica, a top producer of dimethylsulfoniopropionate and dimethylsulfoxide
Publication date :
10 October 2019
Event name :
42nd CIESM Congress
Event organizer :
CIESM
Event place :
Cascais, Portugal
Event date :
du 7 au 11 octobre 2019
Audience :
International
Main work title :
CIESM WORKSHOP MONOGRAPHS
Peer reviewed :
Peer reviewed
Name of the research project :
DMSP and DMSO in seagrass meadows F.R.S.-FNRS (Fellowship-Grant 1237018F and contract 2.4.637.10; University of Liège (C-10/78 Fonds Spéciaux); (STARECAPMED program
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique ULiège - Université de Liège Agence de l'eau Rhône Méditerranée Corse Portuguese Foundation for Science and Technology
