Ultra-structure alteration via enhanced silicon uptake in arsenic stressed rice cultivars under intermittent irrigation practices in Bengal delta basin

Majumdar, Arnab; Upadhyay, Munish Kumar; Kumar, Jisha Suresh; Sheena,; Barla, Anil; Jaiswal, Manoj K.; Bose, Sutapa

doi:10.1016/j.ecoenv.2019.05.028

Cited by 52 publications

(14 citation statements)

References 68 publications

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“…This mechanism is notably efficient within the roots of hypertolerant/non-hyperaccumulator plants, thereby effectively impeding the translocation of As to the aerial parts of the plants. On the other hand, AsV reduction to AsIII has been observed to transpire efficiently in hyperaccumulator plants [137] , [138] , [139] .…”

Section: Uptake and Transport Of As In Rice Plantsmentioning

confidence: 99%

Methylation of arsenic in rice: Mechanisms, factors, and mitigation strategies

Mlangeni

2023

Toxicology Reports

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Section: Uptake and Transport Of As In Rice Plantsmentioning

confidence: 99%

Methylation of arsenic in rice: Mechanisms, factors, and mitigation strategies

Mlangeni

2023

Toxicology Reports

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“…Si is the most abundant element after oxygen in the Earth’s crust and overlying soil [ 18 ]. Si is beneficial for rice and is even considered an essential nutrient [ 19 ]. Si foliar spraying not only mitigates the detrimental effects of Cd on rice growth and enhances the antioxidant defense system [ 20 ] but also enhances photosynthesis in rice leaves and reduces Cd transport from the shoots to brown rice [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effects of Water Management and Silicon Foliar Spraying on the Uptake and Transport Efficiency of Cadmium in Rice (Oryza sativa L.)

Xiao-yun

Fan

Xie

et al. 2023

Plants

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To study the synergistic effects of water management and silicon (Si) foliar spraying on the uptake and transport of cadmium (Cd) in rice, we designed four treatments: conventional intermittent flooding + no Si foliar spraying (CK), continuous flooding throughout the growth stage + no Si foliar spraying (W), conventional intermittent flooding + Si foliar spraying (Si) and continuous flooding throughout the growth stage + Si foliar spraying (WSi). The results show that WSi treatment reduced the uptake and translocation of Cd by rice and significantly reduced the brown rice Cd content, with no effect on rice yield. Compared with CK, the Si treatment increased the net photosynthetic rate (Pn), stomatal conductance (Gs) and transpiration rate (Tr) of rice by 6.5–9.4%, 10.0–16.6% and 2.1–16.8%, respectively. The W treatment decreased these parameters by 20.5–27.9%, 8.6–26.8% and 13.3–23.3%, respectively, and the WSi treatment decreased them by 13.1–21.2%, 3.7–22.3% and 2.2–13.7%, respectively. The superoxide dismutase (SOD) and peroxidase (POD) activity decreased by 6.7–20.6% and 6.5–9.5%, respectively, following the W treatment. Following the Si treatment, SOD and POD activity increased by 10.2–41.1% and 9.3–25.1%, respectively, and following the WSi treatment, they increased by 6.5–18.1% and 2.6–22.4%, respectively. Si foliar spraying ameliorated the detrimental effects of continuous flooding throughout the growth stage on photosynthesis and antioxidant enzyme activity. We conclude that synergistic continuous flooding throughout the growth stage, combined with Si foliar spraying, can significantly block Cd uptake and translocation and is therefore an effective means of reducing the accumulation of Cd in brown rice.

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“…Si is considered as being useful improving the Cd stress phenomenon for crops (Rizwan et al, 2016, Yu et al, 2016. Many plant species have high Si accumulation capacity, for example rice can accumulate Si to more than 10% of its dry weight (Majumdar et al, 2019). To produce 1 ton of rice, rice plants absorbed NPK nutrients and about 80-103 kg of SiO 2 (FAO).…”

Section: Introductionmentioning

confidence: 99%

Cadmium Immobilization in the Rice - Paddy Soil with Biochar Additive

Vu¹,

Lan²,

Hoa³

2022

J. Ecol. Eng.

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Cadmium (Cd) is toxic for humans, but its effects on the yield and quality of rice under contaminated irrigation conditions remain uncertain. In this study, paddy soils in the Red River Delta (Vietnam) were selected for experiments with the purpose of understanding the effects of Cd contaminated irrigation water on growth, yields, and grain Cd accumulation. In addition, biochar was produced from rice husk (BRH) and rice straw for preventing Cd infiltration into rice was also studied in this experiment. A field experiment was established with applicated BRH and straw into polluted paddy soil, as a result the Cd content in grains reduced significantly. The Cd contaminated soil was added to the BRH and rice straw (RS) with six ratios, including: (1) RS 2.5%, (2) BRH 2.5%, (3) RS-BRH: 1.25-1.25%, (4) RS 5.0%, (5) BRH 5.0%, (6) RS-BRH: 2.5-2.5%, (w:w). Besides, three content levels 0.01-0.05-0.5 mg/L of Cd in irrigation water were applied throughout crop season. The results showed that the Cd accumulation in rice was in the following order: roots > stems > seeds. With 3 contaminated irrigation levels which were applied, the Cd concentrations of 0.05 mg/L and 0.5 mg/L affected plant height and yield. However, the Cd content in grains under contaminated soil condition can be controlled from 82.47-83.94% by applying a BRH ratio from 2.5-5% (w:w).

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Ultra-structure alteration via enhanced silicon uptake in arsenic stressed rice cultivars under intermittent irrigation practices in Bengal delta basin

Cited by 52 publications

References 68 publications

Methylation of arsenic in rice: Mechanisms, factors, and mitigation strategies

Methylation of arsenic in rice: Mechanisms, factors, and mitigation strategies

Synergistic Effects of Water Management and Silicon Foliar Spraying on the Uptake and Transport Efficiency of Cadmium in Rice (Oryza sativa L.)

Cadmium Immobilization in the Rice - Paddy Soil with Biochar Additive

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