FN Archimer Export Format PT J TI Centrodinium punctatum (Dinophyceae) produces significant levels of saxitoxin and related analogs BT AF Shin, Hyeon Ho Li, Zhun Réveillon, Damien Rovillon, Georges-Augustin Mertens, Kenneth Hess, Philipp Kim, Hyun Jung Lee, Jihoon Lee, Kyun-Woo Kim, Daekyung Park, Bum Soo Hwang, Jinik Seo, Min Ho Lim, Weol Ae AS 1:1;2:2;3:3;4:3;5:4;6:3;7:1;8:5;9:5;10:6;11:7;12:8;13:9;14:10; FF 1:;2:;3:PDG-ODE-DYNECO-PHYC;4:PDG-ODE-DYNECO-PHYC;5:PDG-ODE-LITTORAL-LERBO;6:PDG-ODE-DYNECO-PHYC;7:;8:;9:;10:;11:;12:;13:;14:; C1 Library of Marine Samples, Korea Institute of Ocean Science & Technology, Geoje 656-830, Republic of Korea Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeonbuk 56212, Republic of Korea Ifremer, DYNECO, Laboratoire Phycotoxines, rue de l'Ile d'Yeu, Nantes 03, F‐44311, France Ifremer, LITTORAL, LER BO, Station de Biologie Marine, Place de la Croix, BP40537, F-29185 Concarneau Cedex, France Marine Biotechnology Research Center, Korea Institute of Ocean Science & Technology, Busan 49111, Republic of Korea Daegu Center, Korea Basic Science Institute (KBSI), Daegu, Republic of Korea Marine Ecosystem Research Center, Korea Institute of Ocean Science & Technology, Busan 49111, Republic of Korea Environment and Resource Convergence Center, Advanced Institute of Convergence Technology, Suwon 16229, Republic of Korea Marine Ecology Research Center, Yeosu 59697, Republic of Korea National Institute of Fisheries Science, Busan, 619-705, Republic of Korea C2 KIOST, SOUTH KOREA KRIBB, SOUTH KOREA IFREMER, FRANCE IFREMER, FRANCE KIOST, SOUTH KOREA KBSI, SOUTH KOREA KIOST, SOUTH KOREA AICT, SOUTH KOREA MARINE ECOLOGY RESEARCH CENTER, SOUTH KOREA NIFS, SOUTH KOREA SI NANTES CONCARNEAU SE PDG-ODE-DYNECO-PHYC PDG-ODE-LITTORAL-LERBO IN WOS Ifremer UPR copubli-int-hors-europe IF 4.273 TC 14 UR https://archimer.ifremer.fr/doc/00658/77025/78836.pdf LA English DT Article DE ;Dinoflagellate;Alexandrium;PST;STX;neoSTX;Gonyautoxin AB Centrodinium punctatum is a fusiform dinoflagellate with a global marine distribution. Due to a close phylogenetic relationship of one C. punctatum strain to Alexandrium species, toxin production of this C. punctatum strain was assessed using liquid chromatography coupled to tandem mass spectrometry. The paralytic shellfish toxin (PST) profile of C. punctatum was dominated by six analogs, i.e. STX (30%), GTX-1 (20%) and neoSTX (24%), followed by GTX-2 (9%), GTX-4 (9%) and GTX-3 (8%); deoxy-STX was also putatively identified while no gymnodimines, spirolides or goniodomins were detected. This is the first record of C. punctatum producing saxitoxins. The estimated cellular toxicity was rather elevated, between 91 and 212 pg cell−1 (or 259 and 601 fmol cell−1). When considering the toxicity equivalent factors, results suggest that this species can produce high cellular toxicity compared to other STX-producing dinoflagellates. Morphological details of the sulcal area and the hypotheca of Centrodinium punctatum were re-examined by scanning electron microscopy (SEM); this revealed that in the sulcal area, the left posterior sulcal plate (Ssp) is larger and longer than the left posterior sulcal plate and extended into the hypotheca. Based on the morphological observation, a revised interpretation of the sulcus and hypotheca is proposed. PY 2020 PD DEC SO Harmful Algae SN 1568-9883 PU Elsevier BV VL 100 UT 000599869000003 DI 10.1016/j.hal.2020.101923 ID 77025 ER EF