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dc.contributor.authorRossini Oliva, S.es_ES
dc.contributor.authorAbreu, M. M.es_ES
dc.contributor.authorGonzález Grau, Juan Migueles_ES
dc.date.accessioned2020-07-13T06:09:31Z-
dc.date.available2020-07-13T06:09:31Z-
dc.date.issued2020-06-26-
dc.identifier.citationEnvironmental Geochemistry and Health (2020) https://doi.org/10.1007/s10653-020-00625-zes_ES
dc.identifier.issn0269-4042-
dc.identifier.urihttp://hdl.handle.net/10261/216483-
dc.description13 páginas.- 5 figuras.- 6 tablas.- referenciases_ES
dc.description.abstractThe effect of exposure to high Mn concentration was studied in a metallophyte species, Erica andevalensis, using hydroponic cultures with a range of Mn concentrations (0.06, 100, 300, 500, and 700 mg L−1). At harvest, biomass production, element uptake, and biochemical indicators of metal stress (leaf pigments, organic acids, amino acids, phenols, and activities of catalase, peroxidase, superoxide dismutase) were determined in leaves and roots. Increasing Mn concentrations led to a decrease in biomass accumulation, and tip leaves chlorosis was the only toxicity symptom detected. In a similar way, photosynthetic pigments (chlorophylls a and b, and carotenoids) were affected by high Mn levels. Among organic acids, malate and oxalate contents in roots showed a significant increase at the highest Mn concentration, while in leaves, Mn led to an increasing trend in citrate and malate contents. An increase of Mn also induced an increase in superoxide dismutase activity in roots and catalase activity in leaves. As well, significant changes in free amino acids were induced by Mn concentrations higher than 300 mg L−1, especially in roots. No significant changes in phenolic compounds were observed in the leaves, but root phenolics were significantly increased by increasing Mn concentrations in treatments. When Fe supply was increased 10 and 20 times (7–14 mg Fe L−1 as Fe-EDDHA) in the nutrient solutions at the highest Mn concentration (700 mg Mn L−1), it led to significant increases in photosynthetic pigments and biomass accumulation. Manganese was mostly accumulated in the roots, and the species was essentially a Mn excluder. However, considering the high leaf Mn concentration recorded without toxicity symptoms, E. andevalensis might be rated as a Mn-tolerant species.es_ES
dc.language.isoenges_ES
dc.publisherSpringeres_ES
dc.relation.isversionofPostprint-
dc.rightsembargoedAccesses_ES
dc.subjectErica andevalensises_ES
dc.subjectManganesees_ES
dc.subjectMetallophyteses_ES
dc.subjectUptakees_ES
dc.subjectOrganic acidses_ES
dc.subjectAmino acidses_ES
dc.subjectCatalasees_ES
dc.subjectPeroxidasees_ES
dc.subjectSuperoxide dismutasees_ES
dc.titleStrategies in a metallophyte species to cope with manganese excesses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1007/s10653-020-00625-z-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1007/s10653-020-00625-zes_ES
dc.identifier.e-issn1573-2983-
dc.embargo.terms2021-06-26-
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.contributor.orcidRossini Oliva, S. [0000-0001-6774-4723]es_ES
dc.contributor.orcidAbreu, M. M. [0000-0002-6650-1161]es_ES
dc.contributor.orcidGonzález Grau, Juan Miguel [0000-0003-4746-6775]es_ES
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