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Article: Uptake and depuration of paralytic shellfish toxins in the green-lipped mussel, Perna viridis: A dynamic model

TitleUptake and depuration of paralytic shellfish toxins in the green-lipped mussel, Perna viridis: A dynamic model
Authors
KeywordsDepuration
Dynamic model
Paralytic shellfish toxins
Perna viridis
Uptake
Issue Date2005
PublisherSociety of Environmental Toxicology and Chemistry. The Journal's web site is located at http://etc.allenpress.com/
Citation
Environmental Toxicology And Chemistry, 2005, v. 24 n. 1, p. 129-135 How to Cite?
AbstractUptake and depuration of paralytic shellfish toxins in the green-lipped mussel, Perna viridis, were investigated by exposing the mussels to dinoflagellates (Alexandrium tamarense, ACT101) under laboratory conditions for 8 d, then depurating them in clean seawater for 14 d. First-order linear differential equations were set up for five tissue compartments: Viscera, gill, hepatopancreas, adductor muscle, and foot. The solutions to these equations were used to fit the experimental data. We then estimated the parameters governing the model, which depend on the elimination rate from each compartment and the transfer coefficient between compartments. An assumption of the model is that the gills transport the dinoflagellates directly to the mouth and then to the viscera, where the ingested cells are broken down, releasing the toxins. The toxins absorbed are transferred to other tissues. During the uptake phase, the transfer coefficients from viscera to gill, hepatopancreas, adductor muscle, and foot were 0.03, 0.24, 0.01, and 0.004 per day, respectively. During the depuration phase, the transfer coefficients were 0.01, 0, 0.01, and 0.003 per day, respectively. In terms of the anatomical distribution of N-sulfocarbamoyl-11-hydroxysulfate (C2) toxins in various tissues, viscera and hepatopancreas contained the highest percentages (47-74% and 8-41%, respectively). Together, these two tissue compartments accounted for 71 to 96% of all C2 toxins present. The biokinetic model allows a quantitative prediction of C2 toxins in whole mussel as well as individual tissue compartments based on the density estimates and toxin load of dinoflagellate cells in the surrounding waters over time.
Persistent Identifierhttp://hdl.handle.net/10722/92744
ISSN
2015 Impact Factor: 2.763
2015 SCImago Journal Rankings: 1.523
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, AMYen_HK
dc.contributor.authorYu, PKNen_HK
dc.contributor.authorHsieh, DPHen_HK
dc.contributor.authorWang, WXen_HK
dc.contributor.authorWu, RSSen_HK
dc.contributor.authorLam, PKSen_HK
dc.date.accessioned2010-09-17T10:55:53Z-
dc.date.available2010-09-17T10:55:53Z-
dc.date.issued2005en_HK
dc.identifier.citationEnvironmental Toxicology And Chemistry, 2005, v. 24 n. 1, p. 129-135en_HK
dc.identifier.issn0730-7268en_HK
dc.identifier.urihttp://hdl.handle.net/10722/92744-
dc.description.abstractUptake and depuration of paralytic shellfish toxins in the green-lipped mussel, Perna viridis, were investigated by exposing the mussels to dinoflagellates (Alexandrium tamarense, ACT101) under laboratory conditions for 8 d, then depurating them in clean seawater for 14 d. First-order linear differential equations were set up for five tissue compartments: Viscera, gill, hepatopancreas, adductor muscle, and foot. The solutions to these equations were used to fit the experimental data. We then estimated the parameters governing the model, which depend on the elimination rate from each compartment and the transfer coefficient between compartments. An assumption of the model is that the gills transport the dinoflagellates directly to the mouth and then to the viscera, where the ingested cells are broken down, releasing the toxins. The toxins absorbed are transferred to other tissues. During the uptake phase, the transfer coefficients from viscera to gill, hepatopancreas, adductor muscle, and foot were 0.03, 0.24, 0.01, and 0.004 per day, respectively. During the depuration phase, the transfer coefficients were 0.01, 0, 0.01, and 0.003 per day, respectively. In terms of the anatomical distribution of N-sulfocarbamoyl-11-hydroxysulfate (C2) toxins in various tissues, viscera and hepatopancreas contained the highest percentages (47-74% and 8-41%, respectively). Together, these two tissue compartments accounted for 71 to 96% of all C2 toxins present. The biokinetic model allows a quantitative prediction of C2 toxins in whole mussel as well as individual tissue compartments based on the density estimates and toxin load of dinoflagellate cells in the surrounding waters over time.en_HK
dc.languageengen_HK
dc.publisherSociety of Environmental Toxicology and Chemistry. The Journal's web site is located at http://etc.allenpress.com/en_HK
dc.relation.ispartofEnvironmental Toxicology and Chemistryen_HK
dc.subjectDepurationen_HK
dc.subjectDynamic modelen_HK
dc.subjectParalytic shellfish toxinsen_HK
dc.subjectPerna viridisen_HK
dc.subjectUptakeen_HK
dc.titleUptake and depuration of paralytic shellfish toxins in the green-lipped mussel, Perna viridis: A dynamic modelen_HK
dc.typeArticleen_HK
dc.identifier.emailWu, RSS: rudolfwu@hku.hken_HK
dc.identifier.authorityWu, RSS=rp01398en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1897/03-397.1en_HK
dc.identifier.pmid15683176-
dc.identifier.scopuseid_2-s2.0-10644272713en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-10644272713&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume24en_HK
dc.identifier.issue1en_HK
dc.identifier.spage129en_HK
dc.identifier.epage135en_HK
dc.identifier.isiWOS:000225824600017-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLi, AMY=7403292009en_HK
dc.identifier.scopusauthoridYu, PKN=7403600035en_HK
dc.identifier.scopusauthoridHsieh, DPH=7103265321en_HK
dc.identifier.scopusauthoridWang, WX=9733945000en_HK
dc.identifier.scopusauthoridWu, RSS=7402945079en_HK
dc.identifier.scopusauthoridLam, PKS=7202365776en_HK

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