Strategies in a Metallophyte Species to Cope with Manganese Excess

The 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 (le...

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Detalhes bibliográficos
Autores: Rossini Oliva, Sabina, Abreu, María Manuela, Leidi, Eduardo Óscar
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2021
País:España
Recursos:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/139565
Acesso em linha:https://hdl.handle.net/11441/139565
https://doi.org/10.1007/s10653-020-00625-z
Access Level:acceso abierto
Palavra-chave:Amino acids
Catalase
Erica andevalensis
Manganese
Metallophytes
Organic acids
Peroxidase
Superoxide dismutase
Uptake
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spelling Strategies in a Metallophyte Species to Cope with Manganese ExcessRossini Oliva, SabinaAbreu, María ManuelaLeidi, Eduardo ÓscarAmino acidsCatalaseErica andevalensisManganeseMetallophytesOrganic acidsPeroxidaseSuperoxide dismutaseUptakeThe 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.Springer NatureBiología Vegetal y Ecología2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/139565https://doi.org/10.1007/s10653-020-00625-zreponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésEnvironmental Geochemistry and Health, 43 (4), 1523-1535.https://doi.org/10.1007/s10653-020-00625-zinfo:eu-repo/semantics/openAccessoai:idus.us.es:11441/1395652026-06-17T12:51:07Z
dc.title.none.fl_str_mv Strategies in a Metallophyte Species to Cope with Manganese Excess
title Strategies in a Metallophyte Species to Cope with Manganese Excess
spellingShingle Strategies in a Metallophyte Species to Cope with Manganese Excess
Rossini Oliva, Sabina
Amino acids
Catalase
Erica andevalensis
Manganese
Metallophytes
Organic acids
Peroxidase
Superoxide dismutase
Uptake
title_short Strategies in a Metallophyte Species to Cope with Manganese Excess
title_full Strategies in a Metallophyte Species to Cope with Manganese Excess
title_fullStr Strategies in a Metallophyte Species to Cope with Manganese Excess
title_full_unstemmed Strategies in a Metallophyte Species to Cope with Manganese Excess
title_sort Strategies in a Metallophyte Species to Cope with Manganese Excess
dc.creator.none.fl_str_mv Rossini Oliva, Sabina
Abreu, María Manuela
Leidi, Eduardo Óscar
author Rossini Oliva, Sabina
author_facet Rossini Oliva, Sabina
Abreu, María Manuela
Leidi, Eduardo Óscar
author_role author
author2 Abreu, María Manuela
Leidi, Eduardo Óscar
author2_role author
author
dc.contributor.none.fl_str_mv Biología Vegetal y Ecología
dc.subject.none.fl_str_mv Amino acids
Catalase
Erica andevalensis
Manganese
Metallophytes
Organic acids
Peroxidase
Superoxide dismutase
Uptake
topic Amino acids
Catalase
Erica andevalensis
Manganese
Metallophytes
Organic acids
Peroxidase
Superoxide dismutase
Uptake
description The 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.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/139565
https://doi.org/10.1007/s10653-020-00625-z
url https://hdl.handle.net/11441/139565
https://doi.org/10.1007/s10653-020-00625-z
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Environmental Geochemistry and Health, 43 (4), 1523-1535.
https://doi.org/10.1007/s10653-020-00625-z
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
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