Repository logo
 
Publication

Hg and metallothionein-like proteins in the black scabbardfish Aphanopus carbo

2007Journal article Restricted access
Simple item page
dc.contributor.authorBebianno, Maria João
dc.contributor.authorSantos, Carolina
dc.contributor.authorCanário, J.
dc.contributor.authorGouveia, N.
dc.contributor.authorSena-Carvalho, D.
dc.contributor.authorVale, C.
dc.date.accessioned2020-05-07T09:17:39Z
dc.date.available2020-05-07T09:17:39Z
dc.date.issued2007
dc.description.abstractAphanopus carbo fishery is economically relevant in Portugal (Madeira Archipelago) since the 19th century and an important diet component of its inhabitants. However, Hg levels in this species are a cause of concern due to the insufficient knowledge of Hg subcellular distribution, accumulation and detoxification mechanisms. Hg concentrations (total and subcellular) and metallothionein-like proteins (MTs) were measured in the gills, muscle and liver of A. carbo of different size (50-150 cm) to assess Hg subcellular distribution and the role of MT in Hg binding. Total Hg concentrations in A. carbo decrease from liver to gills and increase exponentially with fish length in all tissues. Hg subcellular distribution in muscle and liver decreased from insoluble > high molecular weight proteins and heat-treated cytosol where MT occurs highlighting the role of the insoluble fraction in Hg distribution. In the gills, Hg was mainly in the soluble fraction except for 75-100 cm specimens, whose Hg distribution was similar between soluble and insoluble factions. The variation of MT with size is different from that of Hg. MT levels in the gills decrease with size/age and is unrelated with Hg concentrations. In the muscle although decreasing with size/age, MT is inversely proportional to Hg. In the liver, however, MT is directly proportional with size/age and to the Hg accumulated (total and HTC subcellular fraction) highlighting an age related change in these two parameters and the importance of MT in detoxifying Hg in this tissue. Due to Hg concentrations present in the muscle (used for human consumption) and liver (consumed mainly by fisherman) consumption of A. carbo should be taken with caution in a population with such an important seafood weekly intake.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.fct.2007.02.003pt_PT
dc.identifier.issn0278-6915
dc.identifier.urihttp://hdl.handle.net/10400.1/13851
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAge factorspt_PT
dc.subjectAnimalspt_PT
dc.subjectFemalept_PT
dc.subjectGillspt_PT
dc.subjectLiverpt_PT
dc.subjectMercurypt_PT
dc.subjectMetallothioneinpt_PT
dc.subjectMusclept_PT
dc.subjectPortugalpt_PT
dc.subjectSubcellular fractionspt_PT
dc.subjectPerciformespt_PT
dc.subjectSkeletalpt_PT
dc.titleHg and metallothionein-like proteins in the black scabbardfish Aphanopus carbopt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1452pt_PT
oaire.citation.issue8pt_PT
oaire.citation.startPage1443pt_PT
oaire.citation.titleFood and Chemical Toxicologypt_PT
oaire.citation.volume45pt_PT
person.familyNameBebianno
person.familyNameSantos
person.givenNameMaria
person.givenNameCarolina
person.identifier.ciencia-id2B11-46AC-B94B
person.identifier.ciencia-id0311-B9B0-F526
person.identifier.orcid0000-0003-1492-8566
person.identifier.orcid0000-0001-5521-0046
person.identifier.scopus-author-id7004152715
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication2e00a26d-1dd3-4c22-a6bf-ac7943ae0d32
relation.isAuthorOfPublication5a612b72-a872-4f5f-b1a0-6a233d8f8baa
relation.isAuthorOfPublication.latestForDiscovery2e00a26d-1dd3-4c22-a6bf-ac7943ae0d32

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Bebianno et al 2007_FCT.pdf
Size:
324.05 KB
Format:
Adobe Portable Document Format
Download

Collections

CIM2-Artigos (em revistas ou actas indexadas)