Paralytic Shellfish Toxins
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Detection of shellfish toxins from scallops in Guangzhou seafood market
To evaluate scallop safety in the Guangzhou seafood market, contents of shellfish toxins in adductor muscle, mantle skirts, gills and visceral mass of scallops were examined using enzyme-linked immunosorbent assay (ELISA) and mouse unit assay. The results showed that: paralytic shellfish poisoning contents were up to 37.44 μg/100 g by ELISA and 319.99 MU/10
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2011
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2. Variação espaço-temporal da ocorrência de ficotoxinas em áreas de cultivo de moluscos de Santa Catarina
Mariculture appeared in Santa Catarina State, southern Brazil, in the beginning of 90s and today comprise 90% of the total cultivate bivalve mussels in the country. Bivalve mussels are filtering feeders and can accumulate in their tissues different substances, including toxins derived from phytoplankton which can be transferred to upper trofic levels. There
Publicado em: 2009
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3. Monitoração toxinológica do pescado comercializado nos municípios de São Sebastião e Caraguatatuba, SP / Toxinological monitoring of fisheries comercialized in São Sebastião and Caraguatatuba cities, São Paulo state
The Paralytic Shellfish Poisoning (PSP) toxins are well-known natural bioactive compounds due to their accidental consumption in contaminated seafood. These molecules, of which the most potent representative is saxitoxin (STX), are a class of neurotoxic alkaloids, having different isoforms and varied toxicities, that are produced by some cyanobacteria and so
Publicado em: 2007
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4. Evidence for production of paralytic shellfish toxins by bacteria associated with Alexandrium spp. (Dinophyta) in culture.
A substantial proportion of bacteria from five Alexandrium cultures originally isolated from various countries produced sodium channel blocking (SCB) toxins, as ascertained by mouse neuroblastoma assay. The quantities of SCB toxins produced by bacteria and dinoflagellates were noted, and the limitations in comparing the toxicities of these two organisms are
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5. Pseudoalteromonas Bacteria Are Capable of Degrading Paralytic Shellfish Toxins▿ †
Marine bacterial isolates cultured from the digestive tracts of blue mussels (Mytilus edulis) contaminated with paralytic shellfish toxins (PSTs) were screened for the ability to reduce the toxicity of a PST mixture. Seven isolates reduced the overall toxicity of the algal extract by ≥90% within 3 days. These isolates shared at least 99% 16S rRNA gene sequ
American Society for Microbiology (ASM).
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6. Paralytic Shellfish Toxins in Protogonyaulax tamarensis and Protogonyaulax catenella in Axenic Culture 1
Paralytic shellfish toxin concentrations were measured and individual toxin profiles were monitored in axenic batch cultures of Protogonyaulax tamarensis and Protogonyaulax catenella. High pressure liquid chromatographic methods were used that allowed the separation of all 12 known paralytic shellfish poisons, including toxins C1, C2, and C3, from a single s
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7. 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 wer
American Society for Microbiology.
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8. Evidence for paralytic shellfish poisons in the freshwater cyanobacterium Lyngbya wollei (Farlow ex Gomont) comb. nov.
Lyngbya wollei (Farlow ex Gomont) comb. nov., a perennial mat-forming filamentous cyanobacterium prevalent in lakes and reservoirs of the southeastern United States, was found to produce a potent, acutely lethal neurotoxin when tested in the mouse bioassay. Signs of poisoning were similar to those of paralytic shellfish poisoning. As part of the Tennessee Va
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9. Biotransformations of Paralytic Shellfish Toxins by Bacteria Isolated from Bivalve Molluscs
Due to the possibility that bacteria could be involved in the clearance of paralytic shellfish toxins (PST) from bivalve molluscs, investigations into which, if any, bacteria were able to grow at the expense of PST focused on several common shellfish species. These species were blue mussels, oysters, razor fish, cockles, and queen and king scallops. Bacteria
American Society for Microbiology.
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10. Geographical Segregation of the Neurotoxin-Producing Cyanobacterium Anabaena circinalis
Blooms of the cyanobacterium Anabaena circinalis are a major worldwide problem due to their production of a range of toxins, in particular the neurotoxins anatoxin-a and paralytic shellfish poisons (PSPs). Although there is a worldwide distribution of A. circinalis, there is a geographical segregation of neurotoxin production. American and European isolates
American Society for Microbiology.