Physiological response of Cistus salviifolius L. to high arsenic concentrations

Detalhes bibliográficos
Autor(a) principal: Carvalho, Luisa C
Data de Publicação: 2020
Outros Autores: Vieira, Cláudia, Abreu, Maria Manuela, Magalhães, Maria Clara F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/21895
Resumo: Arsenic is a trace element found in the environment which can be particularly toxic to living organisms. However, some plant species such as those of the genus Cistus are able to grow in soils with high As concentrations and could be used in the sustainable rehabilitation of mining areas 19 through phytostabilization. In this work, the growth and the physiological response of Cistus salviifolius L. to As induced oxidative stress at several concentrations (reaching 30 mg L-1) in an hydroponic system were evaluated for 30 days. Several growth parameters, chlorophyll content, chemical composition, one indicator of oxidative stress (H2O2) and two of the major anti-oxidative metabolites (ascorbate and glutathione) were analyzed. The toxic effect of As was better perceived in the plants submitted to treatments with concentrations of 20 and 30 mg As L-1. Plants subjected to these treatments had higher concentration of As in roots and shoots. The concentrations of Ca, Mg, K and Fe in the plants, as well as a large part of the evaluated growth parameters were also affected. Arsenic did not interfere with the ability of the plant to perform photosynthesis, as there were no significant differences in the contents of chlorophyll a, b and total between the different treatments. Plants from all treatments accumulated higher amount of As in roots than in shoots, and it was also in the roots that the concentrations of H2O2, AsA and GSH were higher. Cistus salviifolius showed high tolerance to As up to the concentration of 5 mg L-1, which makes it a species with high potential to be used in the phytostabilization of soils contaminated with As and presenting high concentrations of the element in the soil solution.
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spelling Physiological response of Cistus salviifolius L. to high arsenic concentrationsascorbatechlorophyllglutathionephytostabilizationoxidative stressArsenic is a trace element found in the environment which can be particularly toxic to living organisms. However, some plant species such as those of the genus Cistus are able to grow in soils with high As concentrations and could be used in the sustainable rehabilitation of mining areas 19 through phytostabilization. In this work, the growth and the physiological response of Cistus salviifolius L. to As induced oxidative stress at several concentrations (reaching 30 mg L-1) in an hydroponic system were evaluated for 30 days. Several growth parameters, chlorophyll content, chemical composition, one indicator of oxidative stress (H2O2) and two of the major anti-oxidative metabolites (ascorbate and glutathione) were analyzed. The toxic effect of As was better perceived in the plants submitted to treatments with concentrations of 20 and 30 mg As L-1. Plants subjected to these treatments had higher concentration of As in roots and shoots. The concentrations of Ca, Mg, K and Fe in the plants, as well as a large part of the evaluated growth parameters were also affected. Arsenic did not interfere with the ability of the plant to perform photosynthesis, as there were no significant differences in the contents of chlorophyll a, b and total between the different treatments. Plants from all treatments accumulated higher amount of As in roots than in shoots, and it was also in the roots that the concentrations of H2O2, AsA and GSH were higher. Cistus salviifolius showed high tolerance to As up to the concentration of 5 mg L-1, which makes it a species with high potential to be used in the phytostabilization of soils contaminated with As and presenting high concentrations of the element in the soil solution.Repositório da Universidade de LisboaCarvalho, Luisa CVieira, CláudiaAbreu, Maria ManuelaMagalhães, Maria Clara F.2021-09-21T15:53:02Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/21895engEnviron Geochem Health (2020) 42, 2305–2319https://doi.org/10.1007/s10653-019-00389-1info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:51:26Zoai:www.repository.utl.pt:10400.5/21895Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:06:26.118550Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Physiological response of Cistus salviifolius L. to high arsenic concentrations
title Physiological response of Cistus salviifolius L. to high arsenic concentrations
spellingShingle Physiological response of Cistus salviifolius L. to high arsenic concentrations
Carvalho, Luisa C
ascorbate
chlorophyll
glutathione
phytostabilization
oxidative stress
title_short Physiological response of Cistus salviifolius L. to high arsenic concentrations
title_full Physiological response of Cistus salviifolius L. to high arsenic concentrations
title_fullStr Physiological response of Cistus salviifolius L. to high arsenic concentrations
title_full_unstemmed Physiological response of Cistus salviifolius L. to high arsenic concentrations
title_sort Physiological response of Cistus salviifolius L. to high arsenic concentrations
author Carvalho, Luisa C
author_facet Carvalho, Luisa C
Vieira, Cláudia
Abreu, Maria Manuela
Magalhães, Maria Clara F.
author_role author
author2 Vieira, Cláudia
Abreu, Maria Manuela
Magalhães, Maria Clara F.
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Carvalho, Luisa C
Vieira, Cláudia
Abreu, Maria Manuela
Magalhães, Maria Clara F.
dc.subject.por.fl_str_mv ascorbate
chlorophyll
glutathione
phytostabilization
oxidative stress
topic ascorbate
chlorophyll
glutathione
phytostabilization
oxidative stress
description Arsenic is a trace element found in the environment which can be particularly toxic to living organisms. However, some plant species such as those of the genus Cistus are able to grow in soils with high As concentrations and could be used in the sustainable rehabilitation of mining areas 19 through phytostabilization. In this work, the growth and the physiological response of Cistus salviifolius L. to As induced oxidative stress at several concentrations (reaching 30 mg L-1) in an hydroponic system were evaluated for 30 days. Several growth parameters, chlorophyll content, chemical composition, one indicator of oxidative stress (H2O2) and two of the major anti-oxidative metabolites (ascorbate and glutathione) were analyzed. The toxic effect of As was better perceived in the plants submitted to treatments with concentrations of 20 and 30 mg As L-1. Plants subjected to these treatments had higher concentration of As in roots and shoots. The concentrations of Ca, Mg, K and Fe in the plants, as well as a large part of the evaluated growth parameters were also affected. Arsenic did not interfere with the ability of the plant to perform photosynthesis, as there were no significant differences in the contents of chlorophyll a, b and total between the different treatments. Plants from all treatments accumulated higher amount of As in roots than in shoots, and it was also in the roots that the concentrations of H2O2, AsA and GSH were higher. Cistus salviifolius showed high tolerance to As up to the concentration of 5 mg L-1, which makes it a species with high potential to be used in the phytostabilization of soils contaminated with As and presenting high concentrations of the element in the soil solution.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-01-01T00:00:00Z
2021-09-21T15:53:02Z
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dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv Environ Geochem Health (2020) 42, 2305–2319
https://doi.org/10.1007/s10653-019-00389-1
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