Kinetics of arsenic absorption by the species Eichhornia crassipes and Lemna valdiviana under optimized conditions

Souza, Tamara Daiane de; Borges, Alisson Carraro; Matos, Antônio Teixeira de; Veloso, Renato Welmer; Braga, Amanda Fernandes

doi:10.1016/j.chemosphere.2018.06.132

Cited by 18 publications

(6 citation statements)

References 28 publications

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“…Plant quality is expressed in molecular phenes such as vitamin, moisture, and pigment concentrations [15]. On the other hand, toxic elements such as arsenic (As) retards plant growth and worsen its quality for long-term intake [16]. Food production essentially needs an optimized and maintained environmental condition to generate expected crop growth and quality at the end of the cultivation season.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Genetic Programming and Multiverse-based Optimization of Pre-Harvest Growth Factors of Aquaponic Lettuce Based on Chlorophyll Concentration

Concepcion¹,

Dadios²,

Cuello³

et al. 2021

International Journal on Advanced Science, Engineering and Information Technology

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Optimizing photosynthesis is vital in maintaining quality farm produce in the agricultural food production sector. The nonlinear behavior of the interaction of crop pre-harvest growth factors can promote or retard its growth. This study employed multigene symbolic regression genetic programming (MSRGP) in developing the chlorophyll-a fitness function allied with bioinspired algorithms, namely genetic algorithm (GA), particle swarm optimization (PSO), and multiverse optimization (MVO), in determining the ideal combination of carbon dioxide, light intensity, air temperature, and humidity that will induce photosynthesis based on aquaponic lettuce (Lactuca sativa var. Altima) leaf chlorophyll-a concentration. Light spectra were characterized through the floating leaf disk technique, which resulted in white spectra as the most photosynthetic conducive based on the light reaction and dark respiration. Leaf spectro-textural-morphological signatures were extracted for non-destructive MSRGP chlorophyll-a concentration measurement. Carbon dioxide and humidity have a strong positive impact on chlorophyll-a concentration. Photosynthesis is impeded by Vis/IR above 7.817. The hybrid MSRGP-MVO generated the ideal global solution of 880.744 ppm of CO2, 543.147 μmol m -2 s -1 of the visible white light spectrum, 22.238 °C air temperature, and 67.742% humidity which resulted in 651.144 mg g -1 of Chl-a, 0.934 leaf weight ratio, 0.066 roots to shoot ratio, 141 xylem vessels mm -2 127.389 stomata mm -2 , and more prominent intracellular chloroplast concentration for the harvest stage lettuce. The established standard for fresh weight, chlorophylls a and b, and vitamin C concentrations are essential for developing an adaptive nutrient management system to maintain the expected growth signatures of lettuce at the end of the 6-week cultivation cycle.

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Section: Introductionmentioning

confidence: 99%

Hybrid Genetic Programming and Multiverse-based Optimization of Pre-Harvest Growth Factors of Aquaponic Lettuce Based on Chlorophyll Concentration

Concepcion¹,

Dadios²,

Cuello³

et al. 2021

International Journal on Advanced Science, Engineering and Information Technology

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“…For L. valdiviana , the As was only absorbed by the plant after a decline in the phosphate levels of the medium [ 156 ]. Concentrations greater than 1 mg/L As in the nutrient solution caused deleterious effects in L. valdiviana and compromised their phytoremediation capacity of water contaminated with As [ 156 ]. In addition, for L. valdiviana , As accumulation was dependent on pH.…”

Section: Duckweeds For Remediating Water Contaminated With Heavy Meta...mentioning

confidence: 99%

Duckweeds for Phytoremediation of Polluted Water

Zhou

Stepanenko

Kishchenko

et al. 2023

Plants

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Tiny aquatic plants from the Lemnaceae family, commonly known as duckweeds, are often regarded as detrimental to the environment because of their ability to quickly populate and cover the surfaces of bodies of water. Due to their rapid vegetative propagation, duckweeds have one of the fastest growth rates among flowering plants and can accumulate large amounts of biomass in relatively short time periods. Due to the high yield of valuable biomass and ease of harvest, duckweeds can be used as feedstock for biofuels, animal feed, and other applications. Thanks to their efficient absorption of nitrogen- and phosphate-containing pollutants, duckweeds play an important role in the restorative ecology of water reservoirs. Moreover, compared to other species, duckweed species and ecotypes demonstrate exceptionally high adaptivity to a variety of environmental factors; indeed, duckweeds remove and convert many contaminants, such as nitrogen, into plant biomass. The global distribution of duckweeds and their tolerance of ammonia, heavy metals, other pollutants, and stresses are the major factors highlighting their potential for use in purifying agricultural, municipal, and some industrial wastewater. In summary, duckweeds are a powerful tool for bioremediation that can reduce anthropogenic pollution in aquatic ecosystems and prevent water eutrophication in a simple, inexpensive ecologically friendly way. Here we review the potential for using duckweeds in phytoremediation of several major water pollutants: mineral nitrogen and phosphorus, various organic chemicals, and heavy metals.

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“…The BF was calculated taking into account the As concentration in plants and in the medium, according to the following equation (Souza et al 2018):…”

Section: Determination Of Arsenic Uptake and Calculation Of Bioaccumumentioning

confidence: 99%

“…1 and 2). The BF allows evaluation of the efficiency of the plant in accumulating the element (Souza et al 2018). Thus, the JA-induced increase in BF by L. valdiviana demonstrates a useful trait for phytoremediation purposes, as it improves the plant removal capacity.…”

Section: As Accumulation Is Improved In Ja-treated Plantsmentioning

confidence: 99%

Exogenous jasmonic acid enhances oxidative protection of Lemna valdiviana subjected to arsenic

et al. 2020

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Oxidative damage is one of the most harmful effects arising from arsenic (As) toxicity in plants. Herein, the role of exogenous jasmonic acid (JA) in the modulation of As-induced oxidative stress in Lemna valdiviana was investigated. Plants were grown for 24 h in Clark's nutritive solution containing As (4.0 mg L −1) or As + JA (50, 100, 250 and 500 µM). Chlorophyll a and b content decreased under As stress, either in isolation or associated with JA. The decreased chlorophyll a/b ratio in As-exposed plants was recovered by JA treatment at 100 µM. The carotenoid content was higher in plants exposed to As compared to controls and lower when it was associated with JA. Arsenic triggered the accumulation of O 2 •− and H 2 O 2 , in addition to severely increasing lipid peroxidation. Application of JA in As-grown plants resulted in lower O 2 •− content and lipid peroxidation than in those grown under As alone, as a result of enhanced SOD activity. On the other hand, H 2 O 2 accumulation was increased by JA in As-stressed plants, associated with higher CAT, POX and GPX activity. The As content and bioaccumulation factor (BF) were improved by application of JA in the nutritive solution at 250 and 500 µM. Our findings indicate that JA modulates the pigment balance, thereby fine-tuning energy dissipation as well as alleviating As-induced oxidative damage in L. valdiviana through modulation of ROS homeostasis and improvement of the antioxidant enzymatic system, allowing increased accumulation of As without showing major damage.

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Kinetics of arsenic absorption by the species Eichhornia crassipes and Lemna valdiviana under optimized conditions

Cited by 18 publications

References 28 publications

Hybrid Genetic Programming and Multiverse-based Optimization of Pre-Harvest Growth Factors of Aquaponic Lettuce Based on Chlorophyll Concentration

Hybrid Genetic Programming and Multiverse-based Optimization of Pre-Harvest Growth Factors of Aquaponic Lettuce Based on Chlorophyll Concentration

Duckweeds for Phytoremediation of Polluted Water

Exogenous jasmonic acid enhances oxidative protection of Lemna valdiviana subjected to arsenic

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