Depuration kinetics of paralytic shellfish toxins in Mytilus galloprovincialis exposed to Gymnodinium catenatum: laboratory and field experiments

2010 ◽  
Vol 12 (12) ◽  
pp. 2269 ◽  
Author(s):  
Maria João Botelho ◽  
Carlos Vale ◽  
Ana M. Mota ◽  
Maria de Lurdes S. Simões Gonçalves
2014 ◽  
Vol 146 ◽  
pp. 205-211 ◽  
Author(s):  
Vanessa M. Lopes ◽  
Miguel Baptista ◽  
Tiago Repolho ◽  
Rui Rosa ◽  
Pedro Reis Costa

Toxins ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 428 ◽  
Author(s):  
Pedro Reis Costa ◽  
Ana Braga ◽  
Andrew Turner

Paralytic shellfish poisoning (PSP) is a severe food-borne illness, caused by the ingestion of seafood containing paralytic shellfish toxins (PST), which are naturally produced by marine dinoflagellates and accumulate in shellfish during algae blooms. Novel PST, designated as hydroxybenzoate analogues (also known as GC toxins), was relatively recently discovered in Gymnodinium catenatum strains worldwide. However, to date, there have been no studies examining their accumulation in shellfish. In this study, mussels (Mytilus galloprovincialis) were exposed to G. catenatum for five days and then exposed to a non-toxic diet for 24 h, to investigate the toxin’s accumulation/elimination dynamics. As determined by UHPLC-HILIC-MS/MS, the hydroxybenzoate analogues, GC1 to GC6, comprised 41% of the algae toxin profile and only 9% in mussels. Elimination of GC toxins after 24 h was not evident. This study highlights that a relevant fraction of PST in mussels are not routinely analysed in monitoring programs and that there is a need to better understand the toxicological potential of the hydroxybenzoate analogues, in order to properly address the risk of G. catenatum blooms.


2012 ◽  
Vol 106-107 ◽  
pp. 42-47 ◽  
Author(s):  
Pedro Reis Costa ◽  
Patrícia Pereira ◽  
Sofia Guilherme ◽  
Marisa Barata ◽  
Lídia Nicolau ◽  
...  

Toxicon ◽  
1987 ◽  
Vol 25 (10) ◽  
pp. 1105-1111 ◽  
Author(s):  
Yasukatsu Oshima ◽  
Mamiko Hasegawa ◽  
Takeshi Yasumoto ◽  
Gustaaf Hallegraeff ◽  
Susan Blackburn

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