Ecophysiological responses of young mangrove species Rhizophora apiculata (Blume) to different chromium contaminated environments

Nguyen, Kim-Qui; Nguyen, Hoang Anh; Richter, Otto; Pham, Minh Thinh; Nguyen, Van Phuoc

doi:10.1016/j.scitotenv.2016.09.063

Cited by 29 publications

(17 citation statements)

References 26 publications

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“…Plants are increasingly used for the remediation of contaminated soil and water as a substitute for the more expensive conventional purifying techniques (Nguyen et al, 2017). Phytoremediation refers to the use of plants for minimizing the concentration of toxic metals in contaminated soil.…”

Section: Introductionmentioning

confidence: 99%

“…There is evidence that plants grown on Cr-polluted soil undergo changes in the germination process and exhibit retarded growth ( Farid et al., 2017a ; Habiba et al., 2018 ). Additionally, Cr causes many physiological disorders in plants by altering nutrient uptake and the activity of the photosynthetic machinery ( Nguyen et al., 2017 ).…”

Section: Introductionmentioning

confidence: 99%

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Glutamic Acid-Assisted Phytomanagement of Chromium Contaminated Soil by Sunflower (Helianthus annuus L.): Morphophysiological and Biochemical Alterations

Farid

Zubair

et al. 2020

Front. Plant Sci.

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Chelator-assisted phytoremediation is an economical, sustainable, and ecologically friendly method of extracting heavy metals and metalloids from the soil. Organic chelators are thought to enhance metal availability and mobility in contaminated media, thereby improving phytoextraction. The aim of the present study was to examine whether exogenous application of glutamic acid (GA) could improve chromium (Cr) phytoextraction by sunflower plants (Helianthus annuus L.). Seeds were planted in plastic pots filled with 5 kg of local agricultural soil spiked with increasing concentrations of Cr (1, 2, and 5 mg kg −1). Glutamic acid (5 mM) was applied to soil in solution according to a completely randomized experimental design, and the sunflower plants were harvested after 8 weeks. The results indicated that increasing Cr-induced stress significantly inhibited plant growth, leading to reduced biomass, photosynthetic pigment content, activities of antioxidant enzymes, and leaf area of the sunflower plants. However, exogenous addition of GA significantly reduced the Cr-associated toxic effects while also increasing the accumulation of Cr in the plants. Moreover, increasing concentrations of Cr in the soil increased the generation of reactive oxygen species (ROS) responsible for the altered antioxidant enzyme activities. The results revealed that GA application to the topsoil enhanced the Cr concentration and accumulation in the root, stem, and leaves by up to 254, 225, 355, and 47, 59, 150% respectively. Further the GA addition reduced the Crinduced toxicity in plants and might be helpful for enhancing Cr phytoextraction by sunflower plants.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Glutamic Acid-Assisted Phytomanagement of Chromium Contaminated Soil by Sunflower (Helianthus annuus L.): Morphophysiological and Biochemical Alterations

Farid

Zubair

et al. 2020

Front. Plant Sci.

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“…Firstly, experimental data from our previous work [20,42]. Richter et al [20] and Nguyen et al [42] conducted experiments to examine the functioning of a pilot phytoremediation system of young mangrove species, Rhizophora apiculata, in dependence on pollutant loads and other environmental variables. In this experiment, young mangrove trees were planted in pots placed into aquaria, each containing 6 kg of soil.…”

Section: Data Of Chromium Concentrations In Water-soil-plant Domainsmentioning

confidence: 99%

“…The other two stations-two and three, as shown in Figure 5-were used for validating the model to verify the model accuracy after setting the model parameters. For the compartment model for Cr transport in the water-soil-plant domain, the starting point for the calibration of the model were the parameter values from the experiments of Richter et al [20] and Nguyen et al [42] conducted in a constructed wetland involving young mangrove plants. The model fit to a data set of the experiment is shown in Figure 6.…”

Section: Calibration and Validation For The Modelmentioning

confidence: 99%

The Role of Mangroves in the Retention of Heavy Metal (Chromium): A Simulation Study in the Thi Vai River Catchment, Vietnam

Nguyen

Richter

2020

IJERPH

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In this study, chromium (Cr) retention by the mangroves in the Thi Vai catchment located in the south of Vietnam was simulated using a coupled model of the hydrodynamic model Delft3D with Cr transport and a model for the uptake of Cr by mangroves. This coupled model was calibrated and validated using data from four hydrodynamic stations and data from phytoremediation studies. To analyze the effect of mangroves on reducing Cr pollution, three scenarios were run by the model. Scenario 1 (SC1) is based on the actual situation concerning discharges and the distribution of mangroves. Scenario 2 (SC2) simulates the deterioration of the actual situation by deforestation on the west bank and the establishment of more industrial zones on the east bank. Scenario 3 (SC3) simulates an eco-friendly development comprising the channeling of wastewater through constructed wetlands with mangroves prior to the discharge into the river. Simulation results showed that the total Cr uptake by mangroves in SC3 was higher than in the other two scenarios. In total, 33 kg Cr in water were absorbed by the constructed wetlands in SC3 within one month. The simulation results helped in overcoming the difficulties and challenges in assessing the capacity of mangrove forests on the retention of chromium at catchment scale.

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“…In spite of low concentrations, the occurrence of chromium should not be ignored as it has toxic properties depending on many agrochemical factors, especially the status of nutrient element (Nguyen et al 2017). Arsenic (As) was reported in the concentrations up to 38.7 ppm (3.7 ppm on average), with three samples where it was not detected (below 5 ppm).…”

Section: Occurrence Of Elements In Soilsmentioning

confidence: 99%

Toxic Elements in Mountain Soils (Little Beskids, Polish Carpathians)

Jaguś¹,

Skrzypiec²

2019

J. Ecol. Eng.

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The research consisted in the analyses pertaining to the occurrence of elements regarded as toxic (Zn, Cu, Ni, Cr, As, Pb, Cd, Hg), the presence of which in the environment is mainly associated with economic-industrial activities in mountain soils. The research area of about 5 sq. km. included the hilltops and southwestern slopes of the Magurka Wilkowicka massif. The massif is situated on the western edge of the Little Beskids near the area of Bielsko-Biała city. The concentrations of elements were measured in 50 soil samples taken from three zones: at the foothill of the massif (arable fields), on its slopes (forest areas) and on the hilltop (grassland). Additionally, the pH of the soil samples was determined. The research showed that zinc and, to a lesser degree, copper and nickel, occurred in the highest concentrations at the foot of the massif, near built-up areas, while the highest concentrations of arsenic and lead were detected in the hilltop part of the grassland. The concentrations of chromium, cadmium and mercury did not differ spatially. The analysed elements, especially zinc and lead, often occurred in the concentrations higher than those regarded as natural. It is a disturbing fact combined with serious acidity of the analysed soils (almost 60% of the samples were very acid soils), which may increase mobility of metals. The research shows that the soil environment of the Polish Carpathians may be contaminated with toxic elements not only in the neighbourhood of built-up areas, but also in the undeveloped land.

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Ecophysiological responses of young mangrove species Rhizophora apiculata (Blume) to different chromium contaminated environments

Cited by 29 publications

References 26 publications

Glutamic Acid-Assisted Phytomanagement of Chromium Contaminated Soil by Sunflower (Helianthus annuus L.): Morphophysiological and Biochemical Alterations

Glutamic Acid-Assisted Phytomanagement of Chromium Contaminated Soil by Sunflower (Helianthus annuus L.): Morphophysiological and Biochemical Alterations

The Role of Mangroves in the Retention of Heavy Metal (Chromium): A Simulation Study in the Thi Vai River Catchment, Vietnam

Toxic Elements in Mountain Soils (Little Beskids, Polish Carpathians)

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