Accumulation of arsenic and nutrients by castor bean plants grown on an As-enriched nutrient solution

Melo, Évio Eduardo Chaves de; Costa, Enio Tarso de Souza; Guilherme, Luiz Roberto Guimarães; Faquin, Valdemar; Nascimento, Clístenes Williams Araújo do

doi:10.1016/j.jhazmat.2009.02.048

Cited by 78 publications

(41 citation statements)

References 35 publications

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“…These S containing compounds are capable of reducing As and chelating it for compartmentalization in a vacuole [32] [44] [45]. An increase in S or S containing compounds with an increase in As was reported for castor bean [36], Chilopsis linearis [46] and Ceratophyllumdemersum [45]. In this study S concentration increased with higher tissue As.…”

Section: Sulfursupporting

confidence: 53%

“…Root Ca concentration increased with exposure to As in cordgrass (Spartina densiflora), winter wheat (Triticum aestivum) and castor bean (Ricinus communis) but there was a decrease in tissue Ca with As exposure in Barley (Hordeum vulgare) and Pterisvittata [34]- [38]. Liu et al [35] and Melo et al [36], discovered an increase in shoot Ca in wheat and castor bean. The effect of As toxicity on plant Ca levels is generally thought to result from reduced transpiration affecting transport of Ca up through the plant [32].…”

Section: Ca K and Mgmentioning

confidence: 99%

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Effects of Arsenic on Nutrient Accumulation and Distribution in Selected Ornamental Plants

Reed¹,

Ayala-Silva²,

Dunn³

et al. 2015

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In Miami, Florida, 95% of residential and 33% commercial soils exceed the Florida Department of Environmental Protection goals for cleanup of arsenic contamination. Ornamental plants have not been fully investigated as a mechanism for phytoremediation of low level As contaminated soil. This study evaluates nutrient uptake by ornamental plants grown in a hydroponic system containing concentrations of 0, 10, 20, 30, 40, 50 or 70 uM As (0.0, 0.75, 1.5, 3.0, 3.75, 5.25 mg•L −1 As, respectively). Uptake of Ca, K, Mg and Mo was likely influenced by the toxic effect of As on root functions. Arsenic had little effect on Ca, K and Mg transportation to the shoot at any but the highest As exposure rate. Tissue P concentration was similar to or higher than that found in controls and As competition with P uptake occurred at 70 uM As only. Tissue sulfur initially increased then subsequently decreased at 70 uM As where uptake could no longer supply enough S for both detoxification and normal metabolic needs. The effect of As on plant B was likely a result of membrane leakage and overall tissue damage leading to a reduction in transpiration. Arsenic induced Fe deficiency was likely the primary cause of chlorosis; however, As induced reduction in Zn, Mn or Mg contributed to chlorosis. Copper use in cellular functions was very efficient; nevertheless, Cu deficiency was one of the initial effects of As toxicity. Differences in mineral uptake reflect the plant's attempt to detoxify As (i.e. increase in S for S-containing As chelators), mitigate damage to the cell (i.e. Ca to repair leaky menbranes) or continue cellular functions through alternative pathways (i.e. Fe superoxide dismutases to replace the function of Cu/ZnSOD).

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Section: Sulfursupporting

confidence: 53%

Section: Ca K and Mgmentioning

confidence: 99%

Effects of Arsenic on Nutrient Accumulation and Distribution in Selected Ornamental Plants

Reed¹,

Ayala-Silva²,

Dunn³

et al. 2015

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“…TI was calculated as the ratio of biomass yield in the metal treatment to biomass in the control treatment according to the Wilkins (1978) formula in authors modification: BF and TF were calculated for each Ni concentration by the following formulas according to Melo et al (2009) …”

Section: Calculation Of Ti Bf and Tfmentioning

confidence: 99%

“…The usefulness of plants for metal phytoremediation is evaluated on the basis of several parameters such as: (1) the tolerance of the plants to the metal associated with producing sufficiently high yields, (2) metal bioaccumulation in the aboveground parts and roots measured by the bioaccumulation factor (BF aboveground parts and BF roots ) and (3) the transfer of metal from roots to the aboveground parts measured by the translocation factor (TF) (Raskin and Ensley 2000). BF (also called BAF or BCF) is defined as the ratio of metal concentration in aboveground parts or roots to the metal in the soil, whereas TF as the ratio of the metal in aboveground parts to the metal in roots (Golda and Korzeniowska 2016;Masarovicova et al 2010;Melo et al 2009;Stanislawska-Glubiak et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Phytoremediation potential of Phalaris arundinacea, Salix viminalis and Zea mays for nickel-contaminated soils

Korzeniowska

Stanislawska-Glubiak

2018

Int. J. Environ. Sci. Technol.

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The aim of this study was to evaluate the usefulness of Phalaris arundinacea, Salix viminalis and Zea mays to the phytoremediation of the soil contaminated with nickel. A 2-year microplot experiment was carried out with plants growing on Ni-contaminated soil. Microplots (1 m 2 × 1 m deep) were filled with Haplic Luvisols soil. Simulated soil contamination with Ni was introduced in the following doses: 0-no metals, Ni 1 -60, Ni 2 -100 and Ni 3 -240 mg kg −1 . The phytoremediation potential of plants was evaluated using a tolerance index, bioaccumulation factor, and translocation factor. None of the tested plants was a species with high Ni phytoremediation potential. All of them demonstrated a total lack of usefulness for phytoextraction; however, they can be in some way useful for phytostabilization. Z. mays accumulated large amounts of Ni in the roots, which made it useful for phytostabilization, but, at the same time, showed little tolerance to this metal. For this reason, it can be successfully used only on soils medium-contaminated with Ni, where a large yield decrease did not occur. Its biomass may be safely used as cattle feed, as the Ni transfer from roots to shoots was strongly restricted. P. arundinacea and S. viminalis accumulated too little Ni in the roots to be considered as typical phytostabilization plants. However, they may be helpful for phytostabilization due to their high tolerance to Ni. These plants can grow in the soil contaminated with Ni, acting as a protection against soil erosion or the spread of contamination.

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“…Entre as técnicas para a redução da disponibilidade ou mobilidade de metais pesados em solos contaminados, destaca-se a fitoestabilização, que consiste na combinação do uso de amenizantes e vegetação, visando estabilizar os metais no solo e reduzir a exposição humana e animal proveniente das partículas em suspensão na atmosfera ou do movimento desses metais para o lençol freático e as águas superficiais (Ruttens et al, 2006;Santibáñez et al, 2008;Melo et al, 2009 Substâncias húmicas (SH), definidas como associações supramoleculares de moléculas orgânicas de pequena massa molecular que se mantêm unidas por causa das forças de atração fraca (ligações hidrofóbicas van der Waals, π-π e CH-π e ligações de H) (Piccolo, 2002), podem desempenhar importante papel na biodisponibilidade de metais em solos e, dessa maneira, contribuir para a amenização da toxidez às plantas. Kang et al (2011), avaliando a influência de SH na mobilidade de Cu e Zn durante compostagem aeróbica de lodo de esgoto, observaram aumento do coeficiente de distribuição de ácidos húmicos (AH)-Cu e AH-Zn de 27,5 e 3,33 %, respectivamente, sugerindo que houve redução na mobilidade e disponibilidade desses metais.…”

Section: Introductionunclassified

Ácidos húmicos e carvão vegetal ativado como amenizantes em solo contaminado por chumbo

Santos

Accioly

Nascimento

et al. 2014

Rev. Bras. Ciênc. Solo

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RESUMOA contaminação de solos por chumbo representa importante risco à saúde humana, sendo o município de Santo Amaro da Purificação, BA, um dos mais graves casos de contaminação do metal. O objetivo deste trabalho foi avaliar o efeito de ácidos húmicos e carvão vegetal ativado como amenizantes da toxidez de Pb para plantas de milho cultivadas em solo contaminado, coletado próximo à área da metalúrgica responsável pela contaminação. As doses foram estabelecidas com base no teor de C dos materiais (ácidos húmicos de compostagem, ácidos húmicos comerciais e carvão vegetal) e corresponderam a 0; 0,75; 1,5; 3; e 7,5 g kg -1 de C no solo. Ao final de 43 dias de cultivo, as plantas foram coletadas rente ao solo, separadas em parte aérea e raízes e submetidas à digestão nítrico perclórica para determinação de Pb. A fim de avaliar o efeito do metal sobre o aparato fotossintético, os teores de clorofilas a e b foram também avaliados. Os amenizantes aplicados no solo contaminado foram eficientes em diminuir o estresse provocado por Pb nas plantas de milho, sendo a maior eficiência obtida para os ácidos húmicos de compostagem, seguida pelo carvão vegetal e pelos ácidos húmicos comerciais. Todos os amenizantes testados diminuíram a translocação de Pb para a parte aérea das plantas, o que implica em maior fixação do metal no solo, com consequente diminuição dos riscos de transferência à cadeia trófica. Por essa razão, esses amenizantes podem ser recomendados para programas de fitoestabilização de Pb em solos.Termos de indexação: poluição do solo, metais pesados, elementos traço, clorofila.(1) Parte da Tese de Mestrado do primeiro autor apresentada à Universidade Federal do Recôncavo da Bahia -UFRB. Recebido para publicação em 24 de abril de 2013 e aprovado em 13 de setembro de 2013.

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Accumulation of arsenic and nutrients by castor bean plants grown on an As-enriched nutrient solution

Cited by 78 publications

References 35 publications

Effects of Arsenic on Nutrient Accumulation and Distribution in Selected Ornamental Plants

Effects of Arsenic on Nutrient Accumulation and Distribution in Selected Ornamental Plants

Phytoremediation potential of Phalaris arundinacea, Salix viminalis and Zea mays for nickel-contaminated soils

Ácidos húmicos e carvão vegetal ativado como amenizantes em solo contaminado por chumbo

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