Liza ramada Juveniles after Exposure to the Toxic Dinoflagellate Vulcanodinium rugosum: Effects on Fish Viability, Tissue Contamination and Microalgae Survival after Gut Passage

Liza ramada Juveniles after Exposure to the Toxic Dinoflagellate Vulcanodinium rugosum: Effects on Fish Viability, Tissue Contamination and Microalgae Survival after Gut Passage

Pinnatoxins (PnTX) and Portimines (Prtn), two toxins produced by the benthic dinoflagellate Vulcanodinium rugosum, are known to be lethal to mice after intraperitoneal or oral administration. They are also known to accumulate in shellfish such as mussels and clams, but their effect on fish and the u...

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Bibliographic Details
Published in:Toxins Vol. 14; no. 6; p. 401
Main Authors: Bouquet, Aurélien, Perdrau, Marie Anaïs, Laabir, Mohamed, Foucault, Elodie, Chomérat, Nicolas, Rolland, Jean Luc, Abadie, Eric
Format: Journal Article
Language:English
Published: Basel MDPI AG 10-06-2022
MDPI
Subjects:
Algae
Aquatic microorganisms
Biodiversity and Ecology
Contamination
Cysts
Dinoflagellates
Environmental Sciences
Experiments
Feces
Fish
food chain
Food chains
Food contamination
Food contamination & poisoning
Global Changes
Juveniles
Liza ramada
Microalgae
Microorganisms
Mussels
Oral administration
pinnatoxins
portimines
Retention
Shellfish
Toxins
Viability
Vulcanodinium rugosum
Water quality
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Summary:Pinnatoxins (PnTX) and Portimines (Prtn), two toxins produced by the benthic dinoflagellate Vulcanodinium rugosum, are known to be lethal to mice after intraperitoneal or oral administration. They are also known to accumulate in shellfish such as mussels and clams, but their effect on fish and the upper food chain remains unknown. In this work, juveniles of the fish Liza ramada (Mullet) were exposed to a strain of V. rugosum producing PnTX G and Prtn A. The fishes’ viability and contamination were recorded at times interval. Results showed that L. ramada juveniles were able to feed on V. rugosum and that their tissues could be contaminated by PnTX G and Prtn A without impact on fish viability. Furthermore, the microalgae temporary cysts survived and germinated after fish gut passage. This study showed the potential of L. ramada to transfer PnTX and Prtn toxins to the upper food chain and to disseminate V. rugosum in environment.
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PMCID: PMC9229845
ISSN:2072-6651
2072-6651
DOI:10.3390/toxins14060401