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Pregled bibliografske jedinice broj: 257369

Ecotoxicological evaluation of metallothionein level in selected tissues of estuarine invertebrates


Pavičić, Jasenka; Ivanković, Dušica; Lucu, Čedomil; Hamer, Bojan; Erk, Marijana; Tušek-Žnidarič, Magda; Falnoga, Ingrid
Ecotoxicological evaluation of metallothionein level in selected tissues of estuarine invertebrates // Abstracts of the 43rd Congress of the European Societies of Toxicology & 6th Congress of Toxicology in Developing Countries (The EUROTOX 2006/6 CTDC Congress) ; u: Toxicology Letters. Supplement 164 / Kniewald, Jasna (ur.).
Amsterdam: Elsevier, 2006. str. 163-163 (poster, međunarodna recenzija, sažetak, znanstveni)


CROSBI ID: 257369 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Ecotoxicological evaluation of metallothionein level in selected tissues of estuarine invertebrates

Autori
Pavičić, Jasenka ; Ivanković, Dušica ; Lucu, Čedomil ; Hamer, Bojan ; Erk, Marijana ; Tušek-Žnidarič, Magda ; Falnoga, Ingrid

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstracts of the 43rd Congress of the European Societies of Toxicology & 6th Congress of Toxicology in Developing Countries (The EUROTOX 2006/6 CTDC Congress) ; u: Toxicology Letters. Supplement 164 / Kniewald, Jasna - Amsterdam : Elsevier, 2006, 163-163

Skup
43rd Congress of the European Societies of Toxicology (43 ; 2006) ; Congress of Toxicology in Developing Countries (6 ; 2006)

Mjesto i datum
Cavtat, Hrvatska, 20.-24.09.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
metallothionein; biomarker; hypoosmotic stress; cadmium exposure; Mytilus galloprovincialis; Carcinus aestuarii

Sažetak
Organisms living in the estuarine habitats, near to urban and industrial areas are often subjected to interactions of varying natural stressors and diverse anthropogenic impacts, possibly modulating environmental trace metals bioavailability. Biomarker metallothionein (MT) belonging to the class of cytoplasmic stress-defense proteins, is particulary responsive to environmental trace metal exposure. Evidently, several abiotic and physiological variables may induce MT concentration in aquatic invertebrate tissues. The present study objective is to evaluate the contribution of natural stressors, salinity and temperature, on tissue-specific MT induction in two common estuarine invertebrates Mytilus galloprovincialis and Carcinus aestuarii under constant and fluctuating laboratory conditions. Spectrophotometric MT and cytosolic metal determinations (Cd, Zn, Cu)provided by AAS were expressed on wet tissue basis (µ gg-1). The results indicate that under short-term, 8-12 days of acclimation to diluted sea water (DSW ; 15‰ 10-12oC) crabs and mussels display distinct, tissue-specific responses. The most pronounced effect of hypoosmotic stress was time-dependent elevation of branchial MT in the anterior (23.0 µ gg-1 ) and posterior gills (26.4 µ gg-1 ) of C. aestuarii exceeding by 2.4- and 2.9- fold level in control crabs (SW 38‰ ) showing high positive correlation with cytosolic zinc ; (r) 0.71 and 0.99 respectivelly. The hepatopancreas control MT level (278 µ gg-1) was slightly reduced in crabs exposed to DSW. Under the same laboratory conditions alteration of mussel MT in both, digestive gland (154 µ gg-1) and gills (50 µ gg-1) varyed within 30% of corresponding SW controls. Digestive gland hyposaline-induced MT displays decreasing temporal trend in comparison to varying MT level in gills, markedly affected by temperature. The most pronounced MT increase was found in gills of mussels exposed to combined environmental variables, further of optimum ranges (DSW 11‰ 27oC). Additional supportive evidences for tissue-specific, time-dependent responses were obtained in mussels subjected within 15 days to low ambiental cadmium (5µ gCdl-1) under the fluctuating salinity-temperature conditions provided by laboratory running estuarine water supply system. Digestive gland, Cd-induced MT was significantly elevated several days prior to level in gills, surrpassing confidence interval attributed to natural stressors. Considering Cd-mediated signal to noise ratio, related to natural stressors, branchial tissue appears to be less appropriate for biomonitoring purpose than digestive gland/hepatopancreas. Assuming complexity of estuarine situation, for conclusive evaluation on preferential tissue usage, the interactive effects of other environmental variables on tissue specific MT modulation should be examined.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Biologija



POVEZANOST RADA


Projekti:
0098130
0098116

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Bojan Hamer (autor)

Avatar Url Dušica Ivanković (autor)

Avatar Url Jasenka Pavičić (autor)

Avatar Url Čedomil Lucu (autor)

Citiraj ovu publikaciju

Pavičić, Jasenka; Ivanković, Dušica; Lucu, Čedomil; Hamer, Bojan; Erk, Marijana; Tušek-Žnidarič, Magda; Falnoga, Ingrid
Ecotoxicological evaluation of metallothionein level in selected tissues of estuarine invertebrates // Abstracts of the 43rd Congress of the European Societies of Toxicology & 6th Congress of Toxicology in Developing Countries (The EUROTOX 2006/6 CTDC Congress) ; u: Toxicology Letters. Supplement 164 / Kniewald, Jasna (ur.).
Amsterdam: Elsevier, 2006. str. 163-163 (poster, međunarodna recenzija, sažetak, znanstveni)
Pavičić, J., Ivanković, D., Lucu, Č., Hamer, B., Erk, M., Tušek-Žnidarič, M. & Falnoga, I. (2006) Ecotoxicological evaluation of metallothionein level in selected tissues of estuarine invertebrates. U: Kniewald, J. (ur.)Abstracts of the 43rd Congress of the European Societies of Toxicology & 6th Congress of Toxicology in Developing Countries (The EUROTOX 2006/6 CTDC Congress) ; u: Toxicology Letters. Supplement 164.
@article{article, editor = {Kniewald, J.}, year = {2006}, pages = {163-163}, keywords = {metallothionein, biomarker, hypoosmotic stress, cadmium exposure, Mytilus galloprovincialis, Carcinus aestuarii}, title = {Ecotoxicological evaluation of metallothionein level in selected tissues of estuarine invertebrates}, keyword = {metallothionein, biomarker, hypoosmotic stress, cadmium exposure, Mytilus galloprovincialis, Carcinus aestuarii}, publisher = {Elsevier}, publisherplace = {Cavtat, Hrvatska} }
@article{article, editor = {Kniewald, J.}, year = {2006}, pages = {163-163}, keywords = {metallothionein, biomarker, hypoosmotic stress, cadmium exposure, Mytilus galloprovincialis, Carcinus aestuarii}, title = {Ecotoxicological evaluation of metallothionein level in selected tissues of estuarine invertebrates}, keyword = {metallothionein, biomarker, hypoosmotic stress, cadmium exposure, Mytilus galloprovincialis, Carcinus aestuarii}, publisher = {Elsevier}, publisherplace = {Cavtat, Hrvatska} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE





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