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Pregled bibliografske jedinice broj: 609362

Copper complexing properties of exudates and metabolites of macroalgae from the Aegean Sea


Karavoltsos, S.; Sakellari, A.; Strmečki, Slađana; Plavšić, Marta; Ioannou, E.; Roussis, V.; Dassenakis, M.; Scoullos, M.
Copper complexing properties of exudates and metabolites of macroalgae from the Aegean Sea // Chemosphere, 91 (2013), 11; 1590-1595 doi:10.1016/j.chemosphere.2012.12.053 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 609362 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Copper complexing properties of exudates and metabolites of macroalgae from the Aegean Sea

Autori
Karavoltsos, S. ; Sakellari, A. ; Strmečki, Slađana ; Plavšić, Marta ; Ioannou, E. ; Roussis, V. ; Dassenakis, M. ; Scoullos, M.

Izvornik
Chemosphere (0045-6535) 91 (2013), 11; 1590-1595

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
extracellular organic ligands; macroalgae; algal metabolites; copper complexing properties

Sažetak
Macroalgae are a significant source of extracellular organic material in the coastal areas of the Mediterranean, including organic ligands which serve as modulators of metal complexing capacity. This paper examines the release of copper-complexing ligands by 24 macroalgal species, including chlorophyta, rhodophyta, ochrophyta as well as Posidonia oceanica, common throughout the Mediterranean. Metabolites isolated from the algae Dictyota dichotoma and Pterocladiella capillacea were examined for the first time regarding their Cu-complexing properties. The concentration of ligands (LT) and the copper-binding strength (logKapp) of exudates and metabolites were determined by electrochemical methods.All algal species released ligands giving LT concentrations ranging from 109 to 744 nM in unfiltered samples. An increase in the concentration of ligands up to 15 times in comparison to the blank was observed after 48 h of culturing macroalgae in artificial seawater. The binding strength (logKapp) varied among species from 7.0 to 8.6, except for the metabolites for which it was lower (logKapp ~6). Most of the ligands released were in the dissolved phase, with the contribution of particulate and/or colloidal organic matter (up to 46% of total ligands) appearing to be important only in specific macroalgal species.

Izvorni jezik
Engleski

Znanstvena područja
Geologija



POVEZANOST RADA


Projekti:
098-0982934-2717 - Priroda organske tvari, interakcije s mikrokonstituentima i površinama u okolišu (Ciglenečki-Jušić, Irena, MZOS ) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Slađana Strmečki Kos (autor)

Avatar Url Marta Plavšić (autor)

Poveznice na cjeloviti tekst rada:

doi ac.els-cdn.com www.sciencedirect.com dx.doi.org

Citiraj ovu publikaciju:

Karavoltsos, S.; Sakellari, A.; Strmečki, Slađana; Plavšić, Marta; Ioannou, E.; Roussis, V.; Dassenakis, M.; Scoullos, M.
Copper complexing properties of exudates and metabolites of macroalgae from the Aegean Sea // Chemosphere, 91 (2013), 11; 1590-1595 doi:10.1016/j.chemosphere.2012.12.053 (međunarodna recenzija, članak, znanstveni)
Karavoltsos, S., Sakellari, A., Strmečki, S., Plavšić, M., Ioannou, E., Roussis, V., Dassenakis, M. & Scoullos, M. (2013) Copper complexing properties of exudates and metabolites of macroalgae from the Aegean Sea. Chemosphere, 91 (11), 1590-1595 doi:10.1016/j.chemosphere.2012.12.053.
@article{article, author = {Karavoltsos, S. and Sakellari, A. and Strme\v{c}ki, Sla\djana and Plav\v{s}i\'{c}, Marta and Ioannou, E. and Roussis, V. and Dassenakis, M. and Scoullos, M.}, year = {2013}, pages = {1590-1595}, DOI = {10.1016/j.chemosphere.2012.12.053}, keywords = {extracellular organic ligands, macroalgae, algal metabolites, copper complexing properties}, journal = {Chemosphere}, doi = {10.1016/j.chemosphere.2012.12.053}, volume = {91}, number = {11}, issn = {0045-6535}, title = {Copper complexing properties of exudates and metabolites of macroalgae from the Aegean Sea}, keyword = {extracellular organic ligands, macroalgae, algal metabolites, copper complexing properties} }
@article{article, author = {Karavoltsos, S. and Sakellari, A. and Strme\v{c}ki, Sla\djana and Plav\v{s}i\'{c}, Marta and Ioannou, E. and Roussis, V. and Dassenakis, M. and Scoullos, M.}, year = {2013}, pages = {1590-1595}, DOI = {10.1016/j.chemosphere.2012.12.053}, keywords = {extracellular organic ligands, macroalgae, algal metabolites, copper complexing properties}, journal = {Chemosphere}, doi = {10.1016/j.chemosphere.2012.12.053}, volume = {91}, number = {11}, issn = {0045-6535}, title = {Copper complexing properties of exudates and metabolites of macroalgae from the Aegean Sea}, keyword = {extracellular organic ligands, macroalgae, algal metabolites, copper complexing properties} }

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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