Please use this identifier to cite or link to this item:
http://hdl.handle.net/10553/77568
DC Field | Value | Language |
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dc.contributor.author | Fortuna, Lorenzo | en_US |
dc.contributor.author | González, Aridane G. | en_US |
dc.contributor.author | Tretiach, Mauro | en_US |
dc.contributor.author | Pokrovsky, Oleg S. | en_US |
dc.date.accessioned | 2021-02-08T09:34:25Z | - |
dc.date.available | 2021-02-08T09:34:25Z | - |
dc.date.issued | 2021 | en_US |
dc.identifier.issn | 0269-7491 | en_US |
dc.identifier.other | Scopus | - |
dc.identifier.uri | http://hdl.handle.net/10553/77568 | - |
dc.description.abstract | Despite the broad use of lichens as biomonitors of airborne trace elements, the surface chemistry and metal adsorption parameters of these organisms are still poorly known. The current investigation is aimed at (i) quantifying the acid-base surface properties and the first-order physical-chemical parameters of Cu2+ and Zn2+ adsorption of devitalized Pseudevernia furfuracea, a lichen commonly used in biomonitoring of airborne trace elements, and (ii) comparing the results with those available for moss biomonitors. Equilibrium constants and metal-binding site concentrations were calculated with a thermodynamic model by taking into account the presence/absence of ancillary extracellular cell wall compounds, namely melanin and acetone-soluble lichen substances. An acid–base titration experiment performed in the pH range of 3–10 showed that melanised and non-melanised P. furfuracea samples have lower pHPZC (3.53–3.99) and higher metal-binding site concentrations (0.96–1.20 mmol g−1) compared to that of the mosses investigated so far at the same experimental conditions. Melanin biosynthesis increased the content of carboxyl and phosphoryl groups and reduces that of amine/polyphenols. Cu2+ and Zn2+ adsorption was unaffected by the degree of melanisation while the removal of extracellular lichen substances slightly decreased Zn2+ adsorption. Although Cu2+ and Zn2+ adsorption parameters related to P. furfuracea surfaces were 3 times lower than in the mosses, lichen samples adsorbed the same amount of Cu2+ and 30% more Zn2+. The present study contributes in understanding the role of ancillary cell wall compounds in Cu2+ and Zn2+ adsorption in a model lichen. It also provides a first comparison between the surface physico-chemical characteristics of lichens and mosses frequently used as biomonitors of trace elements. | en_US |
dc.language | eng | en_US |
dc.relation | Planificación Conjunta, Seguimiento y Observación, Mejora del Conocimiento y Sensibilización Ante Riesgos y Amezas del Cambio Climatico en la Macaronesia | en_US |
dc.relation.ispartof | Environmental Pollution | en_US |
dc.source | Environmental Pollution [ISSN 0269-7491], v. 273, (Marzo 2021) | en_US |
dc.subject | 2391 Química ambiental | en_US |
dc.subject.other | Acid-Base Properties | en_US |
dc.subject.other | Metal Adsorption | en_US |
dc.subject.other | Mosses | en_US |
dc.subject.other | Pseudevernia Furfuracea | en_US |
dc.subject.other | Secondary Metabolites | en_US |
dc.title | Influence of secondary metabolites on surface chemistry and metal adsorption of a devitalized lichen biomonitor | en_US |
dc.type | info:eu-repo/semantics/Article | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1016/j.envpol.2021.116500 | en_US |
dc.identifier.scopus | 85099976515 | - |
dc.contributor.authorscopusid | 57196424642 | - |
dc.contributor.authorscopusid | 37031064100 | - |
dc.contributor.authorscopusid | 7003859150 | - |
dc.contributor.authorscopusid | 35280747200 | - |
dc.identifier.eissn | 1873-6424 | - |
dc.relation.volume | 273 | en_US |
dc.investigacion | Ciencias | en_US |
dc.type2 | Artículo | en_US |
dc.description.numberofpages | 8 | en_US |
dc.utils.revision | Sí | en_US |
dc.date.coverdate | Marzo 2021 | en_US |
dc.identifier.ulpgc | Sí | en_US |
dc.contributor.buulpgc | BU-BAS | en_US |
dc.description.sjr | 1,954 | |
dc.description.jcr | 9,988 | |
dc.description.sjrq | Q1 | |
dc.description.jcrq | Q1 | |
dc.description.scie | SCIE | |
dc.description.miaricds | 11,0 | |
item.fulltext | Sin texto completo | - |
item.grantfulltext | none | - |
crisitem.project.principalinvestigator | González González, Aridane | - |
crisitem.author.dept | GIR IOCAG: Química Marina | - |
crisitem.author.dept | IU de Oceanografía y Cambio Global | - |
crisitem.author.dept | Departamento de Química | - |
crisitem.author.orcid | 0000-0002-5637-8841 | - |
crisitem.author.parentorg | IU de Oceanografía y Cambio Global | - |
crisitem.author.fullName | González González, Aridane | - |
Appears in Collections: | Artículos |
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