Capture and accumulation of perchlorate in lettuce. Effect of genotype, temperature, perchlorate concentration, and competition with anions

Calderón, R.; Palma, P.; Parker, David R.; Escudey, Mauricio

doi:10.1016/j.chemosphere.2014.03.027

Cited by 19 publications

(16 citation statements)

References 33 publications

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“…Suyunuo, IR65598-112-2, and khazar showed the greatest decrease, and gannuoxiang was less affected. A number of studies also have documented significant differences in ClO 4 bioaccumulation ability among species [19,21,23] or genotypes within the same species [24,25]. In our previous study [21], significant differences were also observed in growth inhibition among 4 wetland plants by ClO 4 -.…”

Section: Perchlorate Phytotoxicity To Different Rice Varietiesmentioning

confidence: 52%

“…With the potential for food crops to be a significant source of ClO 4 exposure in humans, and because phytoremediation has been suggested as a promising remediation option, a mechanistic understanding of perchlorate's phytotoxicity is warranted. According to some previous studies, the potential for ClO 4 accumulation in plants is not only species-dependent [19,23] but also genotype-dependent [24,25]. According to some previous studies, the potential for ClO 4 accumulation in plants is not only species-dependent [19,23] but also genotype-dependent [24,25].…”

Section: Introductionmentioning

confidence: 94%

“…Little information, however, is available about the toxicological effects of ClO 4 on plants, although some previous research has demonstrated growth inhibition of 4 wetland plants and rice seedlings by ClO 4 - [21,22]. According to some previous studies, the potential for ClO 4 accumulation in plants is not only species-dependent [19,23] but also genotype-dependent [24,25]. Rice (Oryza sativa L.) is a major food crop in many countries.…”

Section: Introductionmentioning

confidence: 99%

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Varietal differences in the growth of rice seedlings exposed to perchlorate and their antioxidative defense mechanisms

Chen

et al. 2015

Enviro Toxic and Chemistry

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A hydroponic experiment was conducted to investigate perchlorate (ClO4 (-) ) phytotoxicity in different rice varieties. Considerable variations were observed when 24 rice varieties were treated with ClO4 (-) . The shoot height, root length, and biomass of most varieties were significantly reduced by ClO4 (-) . The roots were more sensitive than the shoots. Hierarchical clustering analysis demonstrated primarily 4 groups: ClO4 (-) -sensitive, medium ClO4 (-) -sensitive, medium ClO4 (-) tolerant, and ClO4 (-) -tolerant. Gannuoxiang (a ClO4 (-) -tolerant variety) and IR65598-112-2 (a ClO4 (-) -sensitive variety) were chosen to explore their antioxidant response when exposed to 0.2 mmol/L, 2.0 mmol/L, and 4.0 mmol/L ClO4 (-) . The results showed that the activities of superoxide dismutase and catalase increased in the shoots and roots of gannuoxiang with increasing doses of ClO4 (-) , but both of them decreased at higher concentrations of ClO4 (-) in IR65598-112-2. The addition of ClO4 (-) led to a significant increase in peroxidase activities for both of the varieties, whereas the increase was more pronounced in gannuoxiang than in IR65598-112-2. No significant difference was found in malondialdehyde (MDA) contents in gannuoxiang, whereas the addition of ClO4 (-) increased the MDA level significantly in IR65598-112-2. The results indicated that gannuoxiang has higher activities of antioxidant enzymes than IR65598-112-2 to cope with oxidative damage caused by ClO4 (-) stress, which may be the main cause of its high tolerance.

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Section: Perchlorate Phytotoxicity To Different Rice Varietiesmentioning

confidence: 52%

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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Varietal differences in the growth of rice seedlings exposed to perchlorate and their antioxidative defense mechanisms

Chen

et al. 2015

Enviro Toxic and Chemistry

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“…Perchlorate anions

{ClO}_{4}^{-}

are one of the major contaminants to aquafers and recent studies shown that these anions may be found at important levels in both surface and ground water sources around the world .

{ClO}_{4}^{-}

persists in the environment as it is very soluble in water and chemically very stable.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, they appear in a variety of sources relevant to human health, including contaminated food products, milk, vegetables and also they present a high contamination of public drinking water wells which is now a serious problem around the world .

{ClO}_{4}^{-}

impacts greatly the human health by modifying the thyroid function of the organism as these anions competitively inhibit the capture of iodide by the thyroid gland . This can affect seriously the production of thyroid hormones which have a potential negative effect on human health, especially in fetuses and newborns, hindering thus the development of vital organs and the thyroid cancer .…”

Section: Introductionmentioning

confidence: 99%

Development of a Perchlorate Chemical Sensor Based on Magnetic Nanoparticles and Silicon Nitride Capacitive Transducer

et al. 2018

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We report in this work the development of a novel capacitance electrochemical sensors based on silicon nitride substrate (Si3N4) chemically modified with a structure of Cobalt phthalocyanine, C,C,C,C‐tetracarboxylic acid‐Polyacrylamide (Co(II)Pc‐PAA). This sensitive layer was tested with and without magnetic nanoparticles (MNP) for perchlorate (ClO4- ) detection. The developed chemical sensor with Si3N4/APTES‐MNP/Co(II)Pc‐PAA structure has shown a better performance when compared to the other structure based on Si3N4/Co(II)Pc‐PAA. Contact angle measurements (CAM) and atomic force microscopy (AFM) characterizations have been performed to characterize the functionalization of the chemical sensors surface. Under the optimized structure of the chemical sensor, electrochemical measurements were carried out using Mott‐Schottky analysis for ClO4- detection within the large range of 10−10 to 10−4 M with a very low detection limit of 2×10−10 M. The chemical sensor has demonstrated a high selectivity toward ClO4- when compared to other interfering anions such as Cl−, SO42−, and CO32−. The present capacitive chemical sensor is very promising for sensitive and rapid detection of ClO4- for environmental applications.

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A review of perchlorate (ClO4 −) occurrence in fruits and vegetables

Calderón

Godoy

Escudey

et al. 2017

Environ Monit Assess

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Since the 1990s, a large number of studies around the world have reported the presence of perchlorate in different types of environmental matrices. In view of their inherent characteristics, such as high solubility, mobility, persistence, and low affinity for the surface of soil, perchlorates are mobilized through the water-soil system and accumulate in edible plant species of high human consumption. However, the ingestion of food products containing perchlorate represents a potential health risk to people due to their adverse effects on thyroid, hormone, and neuronal development, mainly in infants and fetuses. At present, research has been centered on determining sources, fates, and remediation methods and not on its real extension in vegetables under farming conditions. This review presents a comprehensive overview and update of the frequent detection of perchlorate in fruits and vegetables produced and marketed around the world. Additionally, the impact of fertilizer on the potential addition of perchlorate to soil and its mobility in the water-soil-plant system is discussed. This review is organized into the following sections: sources of perchlorate, mobility in the water-soil system, presence in fruits and vegetables in different countries, international regulations, and toxicological studies. Finally, recommendations for future studies concerning perchlorate in fruits and vegetables are presented.

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Capture and accumulation of perchlorate in lettuce. Effect of genotype, temperature, perchlorate concentration, and competition with anions

Cited by 19 publications

References 33 publications

Varietal differences in the growth of rice seedlings exposed to perchlorate and their antioxidative defense mechanisms

Varietal differences in the growth of rice seedlings exposed to perchlorate and their antioxidative defense mechanisms

Development of a Perchlorate Chemical Sensor Based on Magnetic Nanoparticles and Silicon Nitride Capacitive Transducer

A review of perchlorate (ClO4 −) occurrence in fruits and vegetables

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