Arsenic content of various types of rice as determined by plasma-based techniques

D’Ilio, Sonia; Alessandrelli, M.; Cresti, R.; Forte, Giovanni; Caroli, Sergio

doi:10.1016/s0026-265x(02)00064-4

Cited by 69 publications

(23 citation statements)

References 8 publications

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“…The significant reduction in root elongation with increasing concentrations of arsenic is attributed to the fact that the plant roots were the first point of contact with the toxic arsenic species present in the nutrient medium, resulting in the more accumulation of arsenics in rice roots than in rice leaves (Table 3). Table 4 Down-regulated fold of expression of 12 genes encoding key enzymes involved in the absorption and utilization of nitrogen, phosphorus, and potassium in the roots and leaves of the rice seedlings after arsenic treatment Most research results indicated that As(III) exerted more toxic effects on the growth of rice plants than As(V) (Marin et al 1992;D'Ilio et al 2002). The results obtained in this paper are well consistent with other studies (Fig.…”

Section: Discussionsupporting

confidence: 90%

“…It is frequently employed in the chemical industry for the production of pharmaceuticals and agricultural chemicals such as herbicides, fungicides, wood preservatives, insecticides, rodenticides, and sheep dips; it is also used as a growth promoter in pig and poultry farms (Marin et al 1992;D'Ilio et al 2002;Lamont 2003). However, the use of the above-mentioned arsenicals has led to elevated concentrations of plant-available arsenic in the soil of many regions, especially those of Asian countries such as Bangladesh, India, and China .…”

Section: Introductionmentioning

confidence: 99%

“…Rice is considered to be considerably more nutritive than other cereals. However, the total amount of arsenic present in rice plants is relatively higher than that present in other plants (D'Ilio et al 2002). Rice can develop the following toxicity symptoms when exposed to excess arsenic either in soil or in solution culture: inhibited seed germination, reduced plant height (Frans et al 1988), root and shoot growth (Tang and Miller 1991), and leaf area and photosynthesis (Marin et al 1993); wilting and necrosis of leaf blades and lower fruit and grain yield .…”

Section: Introductionmentioning

confidence: 99%

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Effects of two species of inorganic arsenic on the nutrient physiology of rice seedlings

Wang

Gao

et al. 2009

Acta Physiol Plant

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This paper reports on a hydroponics experiment that was conducted to investigate the effect of inorganic arsenics on the seedlings of the rice cultivar Shanyou63. The seedlings were subjected to two treatments, i.e., As(III) and As(V). The results showed that the morphological traits of the seedlings were significantly altered after the arsenic treatments. Analysis of nitrogen, phosphorus, potassium, and arsenic contents of the roots and leaves of the seedlings indicated that the absorption of phosphorus and potassium was mainly affected by As(III), while that of nitrogen was mainly affected by As(V). The expression of 12 genes involved in the absorption and utilization of nitrogen, phosphorus, and potassium were all observed to be down-regulated after the arsenic treatments. As(V) significantly affected the absorption and utilization of nitrogen, while As(III) significantly affected those of phosphorus and potassium. The result obtained by realtime FQ-PCR regarding the difference in the gene expressions agreed with that of our hydroponics experiment.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of two species of inorganic arsenic on the nutrient physiology of rice seedlings

Wang

Gao

et al. 2009

Acta Physiol Plant

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“…The majority of the accumulation studies on rice is focused on Cd (Grant et al, 2008;Liu, Probst, & Liao, 2005;Liu, Zhang, & Zhang, 2007;Rascio et al, 2008) but determination of several toxic elements in milled rice varieties has also been carried out (D'Ilio, Alessandrelli, Cresti, Forte, & Caroli, 2002;Santos, Lauria, & Porto da Silveira, 2004). Abbas, Sarfraz, Mehdi, Hassan, and Rehman (2007) reported about trace element accumulation in rice irrigated with contaminated water, meanwhile Srivastava, Mall, and Mishra (2008) informed about similar results but after a mine spill.…”

Section: Introductionmentioning

confidence: 99%

Removal of some elements from washed and cooked rice studied by inductively coupled plasma mass spectrometry and synchrotron based confocal micro-X-ray fluorescence

et al. 2010

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“…This result is in agreement with the report of Parengam et al (9), who found that the two preventing minerals in various samples were K or Mg. However, their contents varied even in the same rice cultivar due to many factors and growing conditions, including soil type, fertilizers, herbicides and fungicides (27,28).…”

Section: Mineral Profi Le Of Black Glutinous Rice Branmentioning

confidence: 99%

Correlation of Phytochemical, Metal Contents and Antioxidant Activities of Black Glutinous Rice Bran and Potential Chemoprevention

Ngamdee

Wichai

Jiamyangyuen

2016

Food Technol. Biotechnol.

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SummaryIn this work total anthocyanin content (TAC), total fl avonoid content (TFC), total phenolic content (TPC) and minerals found in fi ve black glutinous rice cultivars (MS, SK, PY, PC and KK) from Thailand were analyzed. The antioxidant activity of anthocyanin-rich black glutinous rice bran extracts against nitric oxide radical (NO˙), superoxide radical (O 2˙¯) and lipid peroxyl radical (LOO˙) was also determined. Potential chemopreventive property of rice bran extract was screened based on cellular bioassays for phase II detoxification enzyme induction. Quinone reductase (QR) induction in murine hepatoma cells was used as a marker for this eff ect. Rice bran extract of cultivar KK had the highest TAC, of SK the highest TFC and of PC the highest TPC. The best antioxidants against NO˙, O 2˙¯ and LOO˙ were cultivars KK, MS, and SK, respectively. Overall, TAC, TFC and TPC had a combinatorial eff ect on the antioxidant activities of all extracts; none of them dominated. Minerals may not play a role in the antioxidant activity of the extracts because most correlations between them and the antioxidant activity were unpredictable. However, rice bran contained high mass fractions of some essential minerals on dry mass basis, including Zn (103-133 μg/g), Se (11-18 μg/g) and Cu (3.8-7.1 μg/g). Chemopreventive study indicated that PC cultivar was the most potent chemopreventor with the lowest concentration of an inducer needed to double the QR activity (CD value) of 0.7 μg/mL. These fi ndings showed that black glutinous rice bran is rich in phytochemicals and some essential minerals, and has a potential chemopreventive property.

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Arsenic content of various types of rice as determined by plasma-based techniques

Cited by 69 publications

References 8 publications

Effects of two species of inorganic arsenic on the nutrient physiology of rice seedlings

Effects of two species of inorganic arsenic on the nutrient physiology of rice seedlings

Removal of some elements from washed and cooked rice studied by inductively coupled plasma mass spectrometry and synchrotron based confocal micro-X-ray fluorescence

Correlation of Phytochemical, Metal Contents and Antioxidant Activities of Black Glutinous Rice Bran and Potential Chemoprevention

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