Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/45615
Título: Metal and proton adsorption capacities of natural and cloned Sphagnum mosses
Autores/as: Gonzalez, Aridane G. 
Pokrovsky, Oleg S.
Beike, Anna K.
Reski, Ralf
Di Palma, Anna
Adamo, Paola
Giordano, Simonetta
Angel Fernandez, J.
Clasificación UNESCO: 2301 química analítica
Palabras clave: Biosorption
Moss
Sphagnum
Biomonitoring
Moss-bag technique
Fecha de publicación: 2016
Proyectos: Changes in carbon uptake and emissions by oceans in a changing climate ItemCrisRefDisplayStrategy.project.deleted.icon
Publicación seriada: Journal of Colloid and Interface Science 
Resumen: Terrestrial mosses are commonly used as bioindicators of atmospheric pollution. However, there is a lack of standardization of the biomonitoring preparation technique and the efficiency of metal adsorption by various moss species is poorly known. This is especially true for in vitro-cultivated moss clones, which are promising candidates for a standardized moss-bag technique. We studied the adsorption of copper and zinc on naturally grown Sphagnum peat moss in comparison with in vitro-cultivated Sphagnum palustre samples in order to provide their physico-chemical characterization and to test the possibility of using cloned peat mosses as bioindicators within the protocol of moss-bag technique. We demonstrate that in vitro-grown clones of S. palustre exhibit acid–base properties similar to those of naturally grown Sphagnum samples, whereas the zinc adsorption capacity of the clones is approx. twice higher than that of the samples from the field. At the same time, the field samples adsorbed 30–50% higher amount of Cu2+ compared to that of the clones. This contrast may be related to fine differences in the bulk chemical composition, specific surface area, morphological features, type and abundance of binding sites at the cell surfaces and in the aqueous solution of natural and cloned Sphagnum. The clones exhibited much lower concentration of most metal pollutants in their tissues relative to the natural samples thus making the former better indicators of low metal loading. Overall, in vitro-produced clones of S. palustre can be considered as an adequate, environmentally benign substitution for protected natural Sphagnum sp. samples to be used in moss-bags for atmospheric monitoring.
URI: http://hdl.handle.net/10553/45615
ISSN: 0021-9797
DOI: 10.1016/j.jcis.2015.09.012
Fuente: Journal of Colloid and Interface Science [ISSN 0021-9797], v. 461, p. 326-334
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