Evaluation of the potential of Pistia stratiotes L. (water lettuce) for bioindication and phytoremediation of aquatic environments contaminated with arsenic

Farnese, Fernanda dos Santos; Oliveira, Juraci Alves de; Lima, F.C.; Leão, GA; Gusman, GS; Silva, Luzimar Campos da

doi:10.1590/1519-6984.01113

Cited by 44 publications

(24 citation statements)

References 39 publications

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“…Accordingly, these enzymes were important in A. caroliniana for defence against ROS at low As concentrations, but in higher concentrations the toxic effects of the pollutant inactivated the enzymes. Similar results were observed in rice (Shri et al 2009) and aquatic plants (Farnese et al 2014;Andrade et al 2016) after exposure to high As concentrations. Given that plant growth was maintained even in the highest concentrations of the metalloid, it is likely that A. caroliniana uses other strategies for survival.…”

Section: Discussionsupporting

confidence: 81%

“…Nevertheless, although As exposure reduced the RGR, A. caroliniana continued to show growth even after accumulating high concentrations of the pollutant. Usually, the reduction in the growth of plants subjected to As is much more drastic than what was observed in A. caroliniana (Farnese et al 2014). The maintenance of growth is an important parameter to assess the tolerance of plants to toxic chemical pollutants and is an essential feature in plants used in phytoremediation programs (Chen et al 2016).…”

Section: Discussionmentioning

confidence: 99%

“…Among them, the use of aquatic plants, or phytoremediation, is an effi cient, viable and low-cost technology (Farnese et al 2014). Plants used in phytoremediation should be able to remove the pollutant from the environment and be tolerant to damage caused by it (Podder & Majumder 2016).…”

Section: Introductionmentioning

confidence: 99%

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Phytoremediation of arsenic-contaminated water: the role of antioxidant metabolism of Azolla caroliniana Willd. (Salviniales)

et al. 2017

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Phytoremediation has proven to be an effi cient technology for removing arsenic (As) from water, but the plants used in this process need to be tolerant to the damage caused by As. Th e toxic eff ect of As on growth and functioning of the antioxidant system was studied in individual plants of Azolla caroliniana exposed to fi ve concentrations of As (0.0, 0.25, 0.5, 1.0 and 1.5 mg L -1 ) for the course of fi ve days. Growth, As absorption, enzymatic activity, total and non-protein thiols and anthocyanin content were assessed. Azolla caroliniana was able to take up large amounts of the pollutant, reaching As concentrations of 386.1 µg g -1 dry weight without saturating the absorption mechanism. Th e tolerance index and the growth of A. caroliniana decreased with the increased As uptake. Superoxide dismutase, peroxidases, catalases and glutathione reductase activities increased at lower doses of As and subsequently declined with higher concentrations, whereas ascorbate peroxidase activity was reduced in all treatments. Unlike the enzymatic defence system, anthocyanin and thiol content increased consistently in all treatments and showed a positive correlation with As concentration. Th erefore, the increased synthesis of non-enzymatic antioxidants is most likely the main factor responsible for the high As tolerance of A. caroliniana.

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Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

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Phytoremediation of arsenic-contaminated water: the role of antioxidant metabolism of Azolla caroliniana Willd. (Salviniales)

et al. 2017

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“…Root pressure and leaf transpiration are the two-important process controls the translocation of metal ions from root to shoot [16,17]. Due to physiological resistances, plants might not be able to accumulate large amount of metal ions [18].…”

Section: Discussionmentioning

confidence: 99%

Accumulation of Heavy Metal Ions by Eichhornia Crassipes from Battery Industry Effluent under the Influence of Cattle Manure

Myilsamy

Angamuthu²,

Marimuthu³

2017

JAC

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Phytoremediation, an emerging technology which uses plants to remove contaminants of concern (COC) such as organic and inorganic compounds especially heavy metals (HM). The present study focuses on assessing the toxicity of heavy metals available in effluents discharged from industries and the accumulation ability of an aquatic plant, Eichhornia crassipes (water hyacinth). Phytoremedial potential of E. Crassipes and HM interaction between soil and water were evaluated in the present study under the presence of cow dung manure as an enhancer. Heterogenous accumulation of metal ions were found in the plant. Heavy metal concentration in plant parts were varied for roots and shoots. The concentration of HM ions in the plant parts were varied from root to shoot. Value of translocation factor (TF) was found to be in the region 0.5 â€“ 0.8, with Fe has low (0.51) and Pb has high (0.77), bioconcentration factor (BCF) were in the order of Ar > Ca > Zn > Fe > Pb at both roots and shoots. Transposition factor (TrF) of all HM ions were >1.5 except for Zn (1.21). E. Crassipes was found to accumulate a large amount of HM ions and could be used for efficient treatment of contaminated water.

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“…has high capabilities to remove heavy metals (Cd, Pb, Cu, Zn, and Mn) directly from the contaminated water [33] . [34] and Ugya et al [35] .…”

Section: Fig 1: Collection Of L Minor From Wastewater Accumulated Amentioning

confidence: 99%

Efficacy of Aquatic Plants for Removal of Heavy Metals from Wastewater

Soni¹,

Kaur²

2018

IJLSSR

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ABSTRACT-Wastewater treatment is a problem of grave concern in most developing countries. In the last two decades, there has been a lot of research to develop appropriate technologies to alleviate pollution in water resources. Efficient wastewater treatments through conventional methods are expensive and difficult to get optimum results. Currently, phytoremediation is an effective and affordable solution used to remediate toxic pollutants from aquatic ecosystems. The review describes various aquatic plants, which have high potential to remove heavy metals from wastewater.

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Evaluation of the potential of Pistia stratiotes L. (water lettuce) for bioindication and phytoremediation of aquatic environments contaminated with arsenic

Cited by 44 publications

References 39 publications

Phytoremediation of arsenic-contaminated water: the role of antioxidant metabolism of Azolla caroliniana Willd. (Salviniales)

Phytoremediation of arsenic-contaminated water: the role of antioxidant metabolism of Azolla caroliniana Willd. (Salviniales)

Accumulation of Heavy Metal Ions by Eichhornia Crassipes from Battery Industry Effluent under the Influence of Cattle Manure

Efficacy of Aquatic Plants for Removal of Heavy Metals from Wastewater

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