Uptake arsenic by plants: Effects on mineral nutrition, growth and antioxidant capacity

Arsenic (As) is the one of the main environmental pollutant and phytoremediation is an effective tool for its removal of the environment. In this study, Pistia stratiotes were exposed to seven As concentrations (0, 3, 7, 10, 13, 16 and 20 μM) and then, the influence of this metalloid on gro...

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Autores principales:	Farnese,Fernanda S, Oliveira,Juraci A, Farnese,Mariana S, Gusman,Grasielle S, Silveira,Neidiquele M, Siman,Luhan I
Lenguaje:	English
Publicado:	Universidad de Tarapacá. Facultad de Ciencias Agronómicas 2014
Materias:	Aquatic plant species environmental pollution phytoremediation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292014000100012
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spelling	oai:scielo:S0718-342920140001000122014-09-02Uptake arsenic by plants: Effects on mineral nutrition, growth and antioxidant capacityFarnese,Fernanda SOliveira,Juraci AFarnese,Mariana SGusman,Grasielle SSilveira,Neidiquele MSiman,Luhan I Aquatic plant species environmental pollution phytoremediation Arsenic (As) is the one of the main environmental pollutant and phytoremediation is an effective tool for its removal of the environment. In this study, Pistia stratiotes were exposed to seven As concentrations (0, 3, 7, 10, 13, 16 and 20 μM) and then, the influence of this metalloid on growth, mineral nutrition and photosynthesis were analyzed. It was observed that this species have a high affinity for As and pollutant uptake occurs rapidly. The uptake of Cu, Mn, Fe and P increased until the concentration of 13 μM, decreasing in higher concentrations.The Mg content also decreased from this same concentration. No effects were observed in the uptake of K, Ca and Zn. Growth rate and photosynthetic pigments content were negatively affected by As. Despite this decrease, the growth was maintained up to the concentration of 13 μM of As. The maintenance of growth and the change in nutrients uptake are probably related with the increase in antioxidant capacity of the plant, indicating resistance to the pollutant. In this way, P. stratiotes is probably an efficient phytoremediator of As, even when in concentrations up to one hundred times greater than those permitted in water for human consumption.info:eu-repo/semantics/openAccessUniversidad de Tarapacá. Facultad de Ciencias AgronómicasIdesia (Arica) v.32 n.1 20142014-02-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292014000100012en10.4067/S0718-34292014000100012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Aquatic plant species environmental pollution phytoremediation
spellingShingle	Aquatic plant species environmental pollution phytoremediation Farnese,Fernanda S Oliveira,Juraci A Farnese,Mariana S Gusman,Grasielle S Silveira,Neidiquele M Siman,Luhan I Uptake arsenic by plants: Effects on mineral nutrition, growth and antioxidant capacity
description	Arsenic (As) is the one of the main environmental pollutant and phytoremediation is an effective tool for its removal of the environment. In this study, Pistia stratiotes were exposed to seven As concentrations (0, 3, 7, 10, 13, 16 and 20 μM) and then, the influence of this metalloid on growth, mineral nutrition and photosynthesis were analyzed. It was observed that this species have a high affinity for As and pollutant uptake occurs rapidly. The uptake of Cu, Mn, Fe and P increased until the concentration of 13 μM, decreasing in higher concentrations.The Mg content also decreased from this same concentration. No effects were observed in the uptake of K, Ca and Zn. Growth rate and photosynthetic pigments content were negatively affected by As. Despite this decrease, the growth was maintained up to the concentration of 13 μM of As. The maintenance of growth and the change in nutrients uptake are probably related with the increase in antioxidant capacity of the plant, indicating resistance to the pollutant. In this way, P. stratiotes is probably an efficient phytoremediator of As, even when in concentrations up to one hundred times greater than those permitted in water for human consumption.
author	Farnese,Fernanda S Oliveira,Juraci A Farnese,Mariana S Gusman,Grasielle S Silveira,Neidiquele M Siman,Luhan I
author_facet	Farnese,Fernanda S Oliveira,Juraci A Farnese,Mariana S Gusman,Grasielle S Silveira,Neidiquele M Siman,Luhan I
author_sort	Farnese,Fernanda S
title	Uptake arsenic by plants: Effects on mineral nutrition, growth and antioxidant capacity
title_short	Uptake arsenic by plants: Effects on mineral nutrition, growth and antioxidant capacity
title_full	Uptake arsenic by plants: Effects on mineral nutrition, growth and antioxidant capacity
title_fullStr	Uptake arsenic by plants: Effects on mineral nutrition, growth and antioxidant capacity
title_full_unstemmed	Uptake arsenic by plants: Effects on mineral nutrition, growth and antioxidant capacity
title_sort	uptake arsenic by plants: effects on mineral nutrition, growth and antioxidant capacity
publisher	Universidad de Tarapacá. Facultad de Ciencias Agronómicas
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292014000100012
work_keys_str_mv	AT farnesefernandas uptakearsenicbyplantseffectsonmineralnutritiongrowthandantioxidantcapacity AT oliveirajuracia uptakearsenicbyplantseffectsonmineralnutritiongrowthandantioxidantcapacity AT farnesemarianas uptakearsenicbyplantseffectsonmineralnutritiongrowthandantioxidantcapacity AT gusmangrasielles uptakearsenicbyplantseffectsonmineralnutritiongrowthandantioxidantcapacity AT silveiraneidiquelem uptakearsenicbyplantseffectsonmineralnutritiongrowthandantioxidantcapacity AT simanluhani uptakearsenicbyplantseffectsonmineralnutritiongrowthandantioxidantcapacity
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Uptake arsenic by plants: Effects on mineral nutrition, growth and antioxidant capacity

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