Reevaluation of production of paralytic shellfish toxin by bacteria associated with dinoflagellates of the Portuguese coast.
Paralytic shellfish toxins (PSTs) are potent neurotoxins produced by certain dinoflagellate and cyanobacterial species. The autonomous production of PSTs by bacteria remains controversial. In this study, PST production by two bacterial strains, isolated previously from toxic dinoflagellates, was evaluated using biological and analytical methods. Analyses were performed under conditions determined previously to be optimal for toxin production and detection. Our data are inconsistent with autonomous bacterial PST production under these conditions, thereby challenging previous findings for the same strains.
Martins
Claudia A
CA
Laboratório de Microbiologia e Ecotoxicologia, Instituto Nacional de Saúde Dr. Ricardo Jorge, 1649-016 Lisbon, Portugal. lme.cqh@insa.min-saude.pt
Alvito
Paula
P
Tavares
Maria João
MJ
Pereira
Paulo
P
Doucette
Gregory
G
Franca
Susana
S
D000818:Animals; D002851:Chromatography, High Pressure Liquid; D004141:Dinoflagellida / Q000382:microbiology*; D008387:Marine Toxins / Q000302:isolation & purification*; D009498:Neurotoxins / Q000302:isolation & purification*; D011174:Portugal; D011549:Pseudomonas / Q000472:pathogenicity*; D044223:Pseudomonas stutzeri / Q000472:pathogenicity*; D012623:Seawater; D012758:Shellfish
D008387:Marine Toxins; D009498:Neurotoxins