Arsenic translocation in rice cultivation and its implication for human health

Bastías-Montes, José Miguel; Beldarraín, Tatiana

doi:10.4067/s0718-58392016000100016

Cited by 26 publications

(20 citation statements)

References 48 publications

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“…Arsenic accumulation in rice grain varies according to the genotype of the plant [51]. The genotypes TD71 and Yinjingruanzhan contain less inorganic arsenic in their grains than genotypes IAPAR9 and Nanyangzhan [63]. More than 1700 rice varieties are investigated around the world for their differences in arsenic accumulation, and about 20 fold variations was found among various strains of rice [64].…”

Section: Accumulation Of Arsenic In Rice Grainmentioning

confidence: 99%

“…Consumption of vegetable rich diets, on the other hand, reduces the chance of developing arsenic induced skin lesions due to differences in the rate of arsenic metabolism [126]. However, gut microbial population also plays an important role in the arsenic speciation and absorption into the blood [63]. Arsenic undergoes a series of biotransformation in the gastrointestinal tract, including oxidation, reduction, methylation, and thiolation [127].…”

Section: Risk Of Arsenic From Rice Diet To Human Healthmentioning

confidence: 99%

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Arsenic Accumulation in Rice and Probable Mitigation Approaches: A Review

Mitra¹,

et al. 2017

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According to recent reports, millions of people across the globe are suffering from arsenic (As) toxicity. Arsenic is present in different oxidative states in the environment and enters in the food chain through soil and water. In the agricultural field, irrigation with arsenic contaminated water, that is, having a higher level of arsenic contamination on the top soil, which may affects the quality of crop production. The major crop like rice (Oryza sativa L.) requires a considerable amount of water to complete its lifecycle. Rice plants potentially accumulate arsenic, particularly inorganic arsenic (iAs) from the field, in different body parts including grains. Different transporters have been reported in assisting the accumulation of arsenic in plant cells; for example, arsenate (As V ) is absorbed with the help of phosphate transporters, and arsenite (As III ) through nodulin 26-like intrinsic protein (NIP) by the silicon transport pathway and plasma membrane intrinsic protein aquaporins. Researchers and practitioners are trying their level best to mitigate the problem of As contamination in rice. However, the solution strategies vary considerably with various factors, such as cultural practices, soil, water, and environmental/economic conditions, etc. The contemporary work on rice to explain arsenic uptake, transport, and metabolism processes at rhizosphere, may help to formulate better plans. Common agronomical practices like rain water harvesting for crop irrigation, use of natural components that help in arsenic methylation, and biotechnological approaches may explore how to reduce arsenic uptake by food crops. This review will encompass the research advances and practical agronomic strategies on arsenic contamination in rice crop.

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Section: Accumulation Of Arsenic In Rice Grainmentioning

confidence: 99%

Section: Risk Of Arsenic From Rice Diet To Human Healthmentioning

confidence: 99%

Arsenic Accumulation in Rice and Probable Mitigation Approaches: A Review

Mitra¹,

et al. 2017

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“…Some rice varieties have been developed that are resistant to high soil As concentrations and are not able to translocate the metalloid toward the root. Arsenic shared maximum As load in rice straw while it is considerably low in grains 52 , 53 .…”

Section: Resultsmentioning

confidence: 95%

Human biomarkers associated with low concentrations of arsenic (As) and lead (Pb) in groundwater in agricultural areas of Thailand

Wongsasuluk

Chotpantarat

Siriwong

et al. 2021

Sci Rep

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Human biomarkers were used to evaluate the lead (Pb) and arsenic (As) exposure of local people who lived in an agricultural area with intense agrochemical usage and who consumed groundwater. Although the heavy metals/metalloids in the groundwater were at low concentrations, they could cause adverse effects due to a high daily water intake rate over the long term. Biomarkers (hair, fingernails and urine) were collected from 100 subjects along with the local shallow groundwater and tap water, which is the treated deep groundwater, and investigated for the concentrations of As and Pb. Shallow groundwater had an average pH of 5.21 ± 1.90, ranging from 3.77 to 8.34, with average concentrations of As and Pb of 1.311 µg/L and 6.882 µg/L, respectively. Tap water had an average pH of 5.24 ± 1.63, ranging from 3.86 to 8.89, with the average concentrations of As and Pb of 0.77 µg/L and 0.004 µg/L, respectively. The levels of both As and Pb in the hair, fingernails and urine of shallow groundwater-consuming residents were greater than those in the hair, fingernails and urine of tap water-consuming residents. Interestingly, the As level in urine showed a linear relationship with the As concentration in groundwater (R2 = 0.91). The average water consumption rate was approximately two-fold higher than the standard; thus, its consumption posed a health risk even at the low As and Pb levels in the groundwater. The hazard index (HI) ranged from 0.01 to 16.34 (average of 1.20 ± 2.50), which was higher than the acceptable level. Finally, the concomitant factors for As and Pb in the urine, hair and nails from both binary logistic regression and odds ratio (OR) analysis indicated that groundwater consumption was the major concomitant risk factor. This study suggested that direct consumption of this groundwater should be avoided and that the groundwater should be treated, especially before consumption. In conclusion, urine is suggested to be a biomarker of daily exposure to As and Pb, while for long-term exposure to these metals, fingernails are suggested as a better biomarker than hair.

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“…The presence of As and Se in the environment is regulated by environmental and public health authorities [1]. As and Se are also toxic to plants, acting either directly or indirectly through accumulation in plant tissues, which can in turn lead to their entry into the animals and human food chains [2]. Rice is much more efficient in arsenic accumulation and toxicity than barley and wheat.…”

Section: Introductionmentioning

confidence: 99%

Effect of Endogenous Selenium on Arsenic Uptake and Antioxidative Enzymes in As-Exposed Rice Seedlings

Camara

Wan

Yao

et al. 2019

IJERPH

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Arsenic (As) and selenium (Se) are two metalloids found in the environment. As it poses a significant threat to human health and plant growth due to its prevalence and toxicity, however Se is a required micronutrient for human health. In this study hydroponic experiments were performed to investigate whether endogenous Se can mitigate As toxicity in rice (Oryza sativa L.). We found that As uptake by rice roots increased by pretreatment with selenateSe(VI) or selenite Se(IV). However, co-application of arsenate As(V) or arsenite As(III) with selenate markedly reduced the uptake of As by roots. Co- or pretreatment with Se with five µM of As(V) or one µM of As(III) significantly decreased shoot As content. Conversely, Se pretreatment before the addition of five µM of As(III) or one µM of As(V) resulted in As accumulation in the shoot compared to As and Se co-application. As translocation to the shoot was lower whereas the transfer factor was higher upon the simultaneous application of Se and As compared to Se pretreatment. Se supplementation with As(III) or pretreatment increased antioxidant enzymes: Superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) increased in the root and shoot, but decreased glutathione (GSH) and malondialdehyde (MDA) contents in the shoot. Plants under As(V) treatment showed the same trend except that CAT content decreased in the root and shoot, while MDA content increased in the shoot. These results suggest that cultivating rice in the presence of Se can reduce the accumulation of toxic As in seedlings, thus ensuring the safety of this important crop for human consumption.

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Arsenic translocation in rice cultivation and its implication for human health

Cited by 26 publications

References 48 publications

Arsenic Accumulation in Rice and Probable Mitigation Approaches: A Review

Arsenic Accumulation in Rice and Probable Mitigation Approaches: A Review

Human biomarkers associated with low concentrations of arsenic (As) and lead (Pb) in groundwater in agricultural areas of Thailand

Effect of Endogenous Selenium on Arsenic Uptake and Antioxidative Enzymes in As-Exposed Rice Seedlings

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