FN Archimer Export Format PT J TI β-N-methylamino-l-alanine (BMAA) and isomers: Distribution in different food web compartments of Thau lagoon, French Mediterranean Sea BT AF REVEILLON, Damien ABADIE, Eric SECHET, Veronique MASSERET, Estelle HESS, Philipp AMZIL, Zouher AS 1:1;2:2;3:1;4:3;5:1;6:1; FF 1:PDG-ODE-LITTORAL-PHYC;2:PDG-ODE-LITTORAL-LERLR;3:PDG-ODE-LITTORAL-PHYC;4:;5:PDG-ODE-LITTORAL-PHYC;6:PDG-ODE-LITTORAL-PHYC; C1 IFREMER, Lab Phycotoxines, F-44311 Nantes, France. Univ Montpellier, IFREMER, UMR MARBEC, Lab Environm Ressources Languedoc Roussillon,IRD, Sete 3, France. Univ Montpellier, IFREMER, CNRS, UMR MARBEC,IRD, F-34095 Montpellier 5, France. C2 IFREMER, FRANCE UNIV MONTPELLIER, FRANCE UNIV MONTPELLIER, FRANCE SI NANTES SETE SE PDG-ODE-LITTORAL-PHYC PDG-ODE-LITTORAL-LERLR UM MARBEC IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france IF 2.769 TC 68 UR https://archimer.ifremer.fr/doc/00275/38607/37192.pdf LA English DT Article DE ;BMAA;Diatoms;Chaetoceros sp.;Seston;Mytilus galloprovincialis;HILIC-MS/MS AB The neurotoxin BMAA (β-N-methylamino-l-alanine) and its isomer DAB (2,4-diaminobutyric acid) have been detected in seafood worldwide, including in Thau lagoon (French Mediterranean Sea). A cluster of amyotrophic lateral sclerosis (ALS), a neurodegenerative disease associated with BMAA, has also been observed in this region. Mussels, periphyton (i.e. biofilms attached to mussels) and plankton were sampled between July 2013 and October 2014, and analyzed using HILIC-MS/MS. BMAA, DAB and AEG (N-(2-aminoethyl)glycine) were found in almost all the samples of the lagoon. BMAA and DAB were present at 0.58 and 0.83, 2.6 and 3.3, 4.0 and 7.2 μg g−1 dry weight in plankton collected with nets, periphyton and mussels, respectively. Synechococcus sp., Ostreococcus tauri, Alexandrium catenella and eight species of diatoms were cultured and screened for BMAA and analogs. While Synechococcus sp., O. tauri and A. catenella did not produce BMAA under our culture conditions, four diatoms species contained both BMAA and DAB. Hence, diatoms may be a source of BMAA for mussels. Unlike other toxins produced by microalgae, BMAA and DAB were detected in significant amounts in tissues other than digestive glands in mussels. PY 2015 PD SEP SO Marine Environmental Research SN 0141-1136 PU Elsevier Sci Ltd VL 110 UT 000362304700002 BP 8 EP 18 DI 10.1016/j.marenvres.2015.07.015 ID 38607 ER EF