Distribution and coassociations of trace elements in soft tissue and byssus of Mytilus galloprovincialis relative to the surrounding seawater and suspended matter of the southern part of the Korean Peninsula

Szefer, Piotr; Kim, B.-S; Kim, C.-K; Kim, E.-H; Lee, C.-B

doi:10.1016/j.envpol.2003.10.012

Cited by 88 publications

(35 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…galloprovincialis is an important seafood product and a sentinel species for many countries [23]. In the present study, we aimed to clone the full-length cDNA of HSPA12A and TCTP from M. galloprovincialis, and also investigate the temporal expression of these two genes responded to Vibrio anguillarum stimulation and Cd exposure, for better understanding of the defense mechanisms of mussels responded to pathogen and toxic metal stresses.…”

Section: Introductionmentioning

confidence: 99%

The response profiles of HSPA12A and TCTP from Mytilus galloprovincialis to pathogen and cadmium challenge

You

Ning²,

Liu³

et al. 2013

Fish & Shellfish Immunology

View full text Add to dashboard Cite

a b s t r a c tHeat shock 70 kDa protein 12A (HSPA12A) is an atypical member of HSP70 family, and the translationally controlled tumor protein (TCTP) is a novel HSP with chaperone-like activity. They are both involved in protecting organisms against various stressors. In the present study, the cDNAs of HSPA12A and TCTP (called MgHSPA12A and MgTCTP) were identified from Mytilus galloprovincialis by RACE approaches. The full-length cDNA of MgHSPA12A and MgTCTP encoded a peptide of 491 and 171 amino acids, respectively. Real-time PCR was employed to analyze the tissue distribution and temporal expression of these two genes after bacterial challenge and cadmium (Cd) exposure. It was found that the transcripts of MgHSPA12A and MgTCTP were dominantly expressed in gonad and muscle, respectively. The expression level of MgTCTP at 48 h post Vibrio anguillarum challenge was detected to be significantly up-regulated in hepatopancreas (P < 0.05). As concerned to Cd exposure, 2.0-fold increase of MgHSPA12A expression compared to that of the control was observed at 48 h in 5 mg/L Cd 2þ -treated group, while the expression levels of MgTCTP were significantly decreased after exposed to both 5 and 50 mg/L Cd 2þ for 24 h and 96 h.These results suggested the potential involvement of MgHSPA12A and MgTCTP in the mediation of the immune responses and environmental stress in mussels.

show abstract

Section: Introductionmentioning

confidence: 99%

The response profiles of HSPA12A and TCTP from Mytilus galloprovincialis to pathogen and cadmium challenge

You

Ning²,

Liu³

et al. 2013

Fish & Shellfish Immunology

View full text Add to dashboard Cite

show abstract

“…Factors known to influence metal concentrations and accumulation in these organisms include metal bioavailability, season of sampling, hydrodynamics of the environment, size, sex, changes in tissue composition, and reproductive cycle (Szefer et al 2004;Maanan 2007).…”

Section: Introductionmentioning

confidence: 99%

Monitoring metal contamination levels and fecal pollution in clam (Tapes decussatus) collected from Izmir Bay (Turkey)

Küçüksezgi̇n

Kacar

Kucuksezgin³

et al. 2009

Environ Monit Assess

View full text Add to dashboard Cite

The aim of this study was to monitor the heavy metal contents and fecal pollution in Tapes decussatus (carpet shell clam) from Izmir Bay (Eastern Aegean). Bivalve mollusks were sampled on January, March, July, and October 2007 in the Izmir Bay. Izmir Bay is one of the great natural bays of the Mediterranean. Concentrations of heavy metals were determined in the clams from the different seasons. Fecal coliform densities were determined to evaluate the degree of water pollution and clams' microbiological accumulation of the classical microbial pollution indicators. The concentration of heavy metals in T. decussatus from Izmir Bay were Hg 0.044-0.13; Cd 0.026-0.24; Pb 0.38-1.2; Cr 2.3-3.7; Cu 6.4-8.4; Zn 56.0-81.8, and Ni 8.1-9.6 microg/g (dry weight). The maximum values were generally obtained in July and March except Ni. This study found that the levels of heavy metals except Cr in T. decussatus were below Spanish and European Communities legislations for shellfish as food. Microbial pollution indicators (heterotrophic bacteria and fecal coliform) were measured in T. decussatus. Maximum heterotrophic bacteria and fecal coliforms were recorded in the winter while the lowest were detected in summer.

show abstract

“…Zn, Cu, Fe, V, Al, Si, Ni, Pb, U, etc.) and the concentration of each varies immensely between different environments and even seasonally in the same environment [13,14]. For example, V can become concentrated in the byssus, especially following oil spills, by up to 10 000-fold [15 -17].…”

Section: Introductionmentioning

confidence: 99%

Mechanical homeostasis of a DOPA-enriched biological coating from mussels in response to metal variation

Schmitt

Winter

Bertinetti

et al. 2015

J. R. Soc. Interface.

View full text Add to dashboard Cite

Protein -metal coordination interactions were recently found to function as crucial mechanical cross-links in certain biological materials. Mussels, for example, use Fe ions from the local environment coordinated to DOPA-rich proteins to stiffen the protective cuticle of their anchoring byssal attachment threads. Bioavailability of metal ions in ocean habitats varies significantly owing to natural and anthropogenic inputs on both short and geological spatio-temporal scales leading to large variations in byssal thread metal composition; however, it is not clear how or if this affects thread performance. Here, we demonstrate that in natural environments mussels can opportunistically replace Fe ions in the DOPA coordination complex with V and Al. In vitro removal of the native DOPA-metal complexes with ethylenediaminetetraacetic acid and replacement with either Fe or V does not lead to statistically significant changes in cuticle performance, indicating that each metal ion is equally sufficient as a DOPA cross-linking agent, able to account for nearly 85% of the stiffness and hardness of the material. Notably, replacement with Al ions also leads to full recovery of stiffness, but only 82% recovery of hardness. These findings have important implications for the adaptability of this biological material in a dynamically changing and unpredictable habitat.

show abstract

Distribution and coassociations of trace elements in soft tissue and byssus of Mytilus galloprovincialis relative to the surrounding seawater and suspended matter of the southern part of the Korean Peninsula

Cited by 88 publications

References 31 publications

The response profiles of HSPA12A and TCTP from Mytilus galloprovincialis to pathogen and cadmium challenge

The response profiles of HSPA12A and TCTP from Mytilus galloprovincialis to pathogen and cadmium challenge

Monitoring metal contamination levels and fecal pollution in clam (Tapes decussatus) collected from Izmir Bay (Turkey)

Mechanical homeostasis of a DOPA-enriched biological coating from mussels in response to metal variation

Contact Info

Product

Resources

About