Anatomical distribution of heavy metals in the scallop<i>Pecten maximus</i>

Saavedra, Y.; González, Alberto Rodríguez; Blanco, Juan

doi:10.1080/02652030802163398

Cited by 24 publications

(10 citation statements)

References 17 publications

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“…Our results were also lower than those found in Antarctic bivalve L. elliptica (Husmann et al, 2012) and in different species of scallops (Belcheva et al, 2006;Bustamante and Miramand, 2004). Digestive gland in bivalves has been reported by many researchers as the main tissue of Cd accumulation (Hervé -Ferná ndez et al, 2010;Husmann et al, 2012;Irato et al, 2003;Saavedra et al, 2008). The slower rate of excretion of Cd in the digestive glands has already been explained by the presence of metallothioneins (Hervé -Ferná ndez et al, 2010;.…”

Section: Discussioncontrasting

confidence: 79%

Assessment of antioxidant responses and trace metal accumulation by digestive gland of ribbed mussel Aulacomya atra atra from Northern Patagonia

Giarratano

Gil

Malanga

2013

Ecotoxicology and Environmental Safety

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. Seasonal variations of trace metals did not appear to influence those of biochemical parameters, which generally showed an opposite trend with higher enzymatic activities in summer when trace metal concentrations were lower. Organisms from Punta Cuevas (control site) showed higher induction of reactive oxygen species production than those from both considered impacted sites, suggesting the possibility of some biochemical adaptation in organisms or a higher modulation of environmental and physiological factors on antioxidant responses than levels of trace metals. This study, which is the first in the area in this matter, showed that seasonal variations of potential biomarkers should be incorporated into interpretation of long-term biomonitoring studies in this marine coastal ecosystem.

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Section: Discussioncontrasting

confidence: 79%

Assessment of antioxidant responses and trace metal accumulation by digestive gland of ribbed mussel Aulacomya atra atra from Northern Patagonia

Giarratano

Gil

Malanga

2013

Ecotoxicology and Environmental Safety

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“…In the king scallop Pecten maximus, the highest Li concentration was observed in the digestive gland (0.80 ± 0.27 µg/g dw, Fig. 6), apparently consistent with its major role in detoxification and the storage of several trace elements, such as Ag, As, Cd, Cu, and Zn, which reach high concentrations in this tissue (Bustamante and Miramand, 2005;Metian et al, 2008a, b;Saavedra et al, 2008). Nevertheless, the considered Pectinidae live in benthic sediments and are likely to ingest fine particles from the muddy sand, such as silts and clays (Mikulich and Tsikhon-Lukamina, 1981;Shumway et al, 1987), which can contain Li at concentrations >100 µg/g (Tardy et al, 1972), several orders of magnitude above that dissolved in seawater.…”

Section: Distribution In the Tissues Of Marine Organismssupporting

confidence: 55%

Large-scale survey of lithium concentrations in marine organisms

Thibon

Weppe

Vigier

et al. 2021

Science of The Total Environment

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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“…As filter feeders, P. viridis can accumulate metals (e.g. Cd) from the contaminated seawater through their diet, and digestive glands are known to be a major site for bioaccumulation of metals . Having a specific MT type, i.e.…”

Section: Discussionmentioning

confidence: 99%

“…In previous investigations on metal pollution, researchers often quantified the level of total MTs in tissues of P. viridis as a biomarker for metal contamination . Since mussels are filter feeders, their digestive glands are one of the most susceptible organs to trace metals bioaccumulation, and are thus commonly used for pollution assessment . So far, only one main type of MT, which is trace metal inducible, has been described in P. viridis .…”

Section: Introductionmentioning

confidence: 99%

Isoform‐specific responses of metallothioneins in a marine pollution biomonitor, the green‐lipped mussel Perna viridis, towards different stress stimulations

et al. 2014

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Metallothioneins (MTs) are commonly used as biomarker for metal pollution assessment in marine ecosystems. Using integrated genomic and proteomic analyses, this study characterized two types of MT isoform in the digestive gland of a common biomonitor, the green-lipped mussel Perna viridis, towards the challenges of a metal (cadmium; Cd) and a non-metal oxidant (hydrogen peroxide; H2 O2 ) respectively. The two isoforms differed in their deduced protein sequences, with 73 amino acids for MT10-I and 72 for MT10-II (a novel type), but both consisted of a high percentage (27.4 to 29.2%) of cysteine. Two-dimensional gel and Western blot showed that the MT proteins were present in multiple isoform spots, and they were further validated to be MT10-I and MT10-II using MS analysis coupled with unrestricted modifications searching. Expression of mRNA revealed that MT10-I responded promptly to Cd but had a lagged induction to H2 O2 treatments, while MT10-II was exclusively induced by Cd treatment over the course of exposure. Expression of the MT proteins also showed a delayed response to H2 O2 , compared to Cd treatments. This study uncovered the potential different functional roles of various MTs isoforms in P. viridis and thus advances the resolution of using MTs as biomarkers in future applications.

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Anatomical distribution of heavy metals in the scallopPecten maximus

Cited by 24 publications

References 17 publications

Assessment of antioxidant responses and trace metal accumulation by digestive gland of ribbed mussel Aulacomya atra atra from Northern Patagonia

Assessment of antioxidant responses and trace metal accumulation by digestive gland of ribbed mussel Aulacomya atra atra from Northern Patagonia

Large-scale survey of lithium concentrations in marine organisms

Isoform‐specific responses of metallothioneins in a marine pollution biomonitor, the green‐lipped mussel Perna viridis, towards different stress stimulations

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