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In vitro transformation of PSP toxins by different shellfish tissues
- Source :
- Harmful Algae. 6:308-316
- Publication Year :
- 2007
- Publisher :
- Elsevier BV, 2007.
-
Abstract
- Many in vivo shellfish feeding experiments have been carried out in order to investigate the fate of PSP toxins in the marine food chain. A focal point of these studies concerns the species- and tissue-specific differences in toxin metabolism. However, tissue specific effects are often overlapped by selective toxin retention as well as transfer between individual compartiments. In in vitro experiments presented here digestive tissue and adductor homogenates of 10 shellfish species (bivalvia: Mytilus edulis, Crassostrea gigas, Cardium edule, Arctica islandica, Ensis ensis, Modiolus modiolus, Mactra stultorum, Pecten maximus as well as two snails: Littorina littorea and Buccinum undatum) were incubated with an extract of the toxic strain Alexandrium fundyense CCMP 1719. After incubation, changes in the toxin pattern could be observed in all samples with significant differences occuring between both the species and tissues. The greatest metabolic activity was found in digestive tissue samples. Among the organisms, the species with a non-filtering lifestyle, L. littorea and B. undatum, showed the highest conversion rates. Interestingly, the high metabolic transformation rate of the PSP toxins was accompanied with a fast reduction (up to 73%) of toxicity in the homogenates.
- Subjects :
- 0106 biological sciences
Ensis ensis
0303 health sciences
biology
Toxin metabolism
Ecology
010604 marine biology & hydrobiology
Zoology
Plant Science
Aquatic Science
Buccinum undatum
biology.organism_classification
medicine.disease
01 natural sciences
03 medical and health sciences
Alexandrium fundyense
medicine
Pecten maximus
14. Life underwater
Paralytic shellfish poisoning
Modiolus modiolus
Shellfish
030304 developmental biology
Subjects
Details
- ISSN :
- 15689883
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- Harmful Algae
- Accession number :
- edsair.doi...........0473f176ee91eda1b94fbee8a7f6892b