Arsenic Sequestration in Iron Plaque, Its Accumulation and Speciation in Mature Rice Plants (Oryza SativaL.)

2006 ◽  
Vol 40 (18) ◽  
pp. 5730-5736 ◽  
Author(s):  
W. J. Liu ◽  
Y. G. Zhu ◽  
Y. Hu ◽  
P. N. Williams ◽  
A. G. Gault ◽  
...  
Keyword(s):  
Iron Plaque ◽  
Rice Plants

Ferrous Ions Inhibit Cu Uptake and Accumulation via Inducing Iron Plaque and Regulating Metabolism of Rice Plants Exposed to CuO Nanoparticles

2021 ◽  
Author(s):  
Peng Yuan ◽  
Cheng Peng ◽  
Jiyan Shi ◽  
Jianshe Liu ◽  
Dongqing Cai ◽  
...  
Keyword(s):  
Cuo Nanoparticles ◽  
Iron Plaque ◽  
Ferrous Ions ◽  
Rice Plants ◽  
Cu Uptake

Ferrous ions (Fe2+) in the rhizosphere play an indispensable role in the interaction between plants and nanoparticles (NPs). Here, we investigated the effect of Fe2+ (3 mM) on the dynamic...

scholarly journals Temporal variations in arsenic uptake by rice plants in Bangladesh: The role of iron plaque in paddy fields irrigated with groundwater

2010 ◽  
Vol 408 (19) ◽  
pp. 4185-4193 ◽  
Author(s):  
J.-M. Garnier ◽  
F. Travassac ◽  
V. Lenoble ◽  
J. Rose ◽  
Y. Zheng ◽  
...  
Keyword(s):  
Temporal Variations ◽  
Iron Plaque ◽  
Paddy Fields ◽  
Arsenic Uptake ◽  
Rice Plants

scholarly journals Arsenic sequestration in iron plaque and its effect on As uptake by rice plants grown in paddy soils with high contents of As, iron oxides, and organic matter

2013 ◽  
Vol 59 (3) ◽  
pp. 463-471 ◽  
Author(s):  
Chien-Hui Syu ◽  
Pei-Yu Jiang ◽  
Hsuan-Han Huang ◽  
Wen-Ting Chen ◽  
Tzu-Huei Lin ◽  
...  
Keyword(s):  
Organic Matter ◽  
Iron Oxides ◽  
Iron Plaque ◽  
Paddy Soils ◽  
Rice Plants

scholarly journals Influence of Iron Plaque on Accumulation and Translocation of Cadmium by Rice Seedlings

2021 ◽  
Vol 13 (18) ◽  
pp. 10307
Author(s):  
Abu Bakkar Siddique ◽  
Mohammad Mahmudur Rahman ◽  
Mohammad Rafiqul Islam ◽  
Muhammad Tahir Shehzad ◽  
Bibhash Nath ◽  
...  
Keyword(s):  
Root Surface ◽  
Plaque Formation ◽  
Iron Plaque ◽  
Soil Types ◽  
Shoot Biomass ◽  
Rice Seedlings ◽  
Cd Accumulation ◽  
Rice Plants ◽  
The Impact ◽  
Rice Tissues

This study investigated the impact of soil type and rice cultivars on variations in the iron plaque formation and cadmium (Cd) accumulation by different portions of rice seedlings under the influence of Fe amendment. The experiments were performed in pots under glasshouse conditions using two typical paddy soils. Rice seedlings were exposed to three concentrations of Cd (0, 1 and 3 mg kg−1 soil) and Fe (0, 1.0 and 2.0 g kg−1 soil). The results revealed that shoot biomass decreased by 12.2–23.2% in Quest and 12.8–30.8% in Langi in the Cd1.0 and Cd3.0 treatments, while shoot biomass increased by 11.2–19.5% in Quest and 26–43.3% in Langi in Fe1.0 and Fe2.0 as compared to the Fe control. The Cd concentration in the roots and shoots of rice seedlings were in the order of Langi cultivar > Quest cultivar, but the Fe concentration in rice tissues showed the reverse order. Fe plaque formations were promoted by Fe application, which was 7.8 and 10.4 times higher at 1 and 2 g kg−1 Fe applications compared to the control Fe treatment. The Quest cultivar exhibited 13% higher iron plaque formation capacity compared to the Langi cultivar in both soil types. These results indicate that enhanced iron plaque formation on the root surface was crucial to reduce the Cd concentration in rice plants, which could be an effective strategy to regulate grain Cd accumulation in rice plants.

Effects of Selenium Application in Soil on Formation of Iron Plaque outside Roots and Cadmium Uptake by Rice Plants

2013 ◽  
Vol 750-752 ◽  
pp. 1573-1576 ◽  
Author(s):  
Hong Chang ◽  
Xin Bin Zhou ◽  
Wen Hua Wang ◽  
Yong Xiang Zhou ◽  
Wen Cai Dai ◽  
...  
Keyword(s):  
Iron Plaque ◽  
Toxic Effects ◽  
Cadmium Uptake ◽  
Selenium Content ◽  
Rice Husks ◽  
High Concentration ◽  
Low Concentration ◽  
Rice Plants ◽  
Rice Growth ◽  
Pot Trial

A pot trial with a soil-sand combination culture in rhizosphere bags was conducted to study the effects of applying Se in soil on formation of iron plaque outside roots, rice growth and absorption of Se and Cd under the control conditions. The results showed that application of low concentration Se (1.0 mg/kg) can promote the formation of iron plaque outside roots, but application of high concentration Se (8.0 mg/kg) can inhibit formation of iron plaque outside roots. Whether applying Cd or not, Se on rice growth had no significant effect, which explained Se on rice growth had not produced toxic effects. With the increasing of Se treatment concentrations, the Cd content of roots, stems, leaves, rice husks and rice significantly decreased. Application of selenium can improve the selenium content in rice, which explained rice had enrichment effect for selenium.

scholarly journals Influence of elemental sulfur on cadmium bioavailability, microbial community in paddy soil and Cd accumulation in rice plants

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Lijuan Sun ◽  
Ke Song ◽  
Lizheng Shi ◽  
Dechao Duan ◽  
Hong Zhang ◽  
...  
Keyword(s):  
Paddy Soil ◽  
Rhizosphere Soil ◽  
Iron Plaque ◽  
Rice Grain ◽  
Cd Accumulation ◽  
Rice Plants ◽  
Rice Rhizosphere ◽  
Residue Decomposition ◽  
Living Organisms ◽  
Diffusive Gradients

AbstractCadmium (Cd) is highly toxic to living organisms and the contamination of Cd in paddy soil in China has received much attention. In the present study, by conducting pot experiment, the influence of S fertilizer (S0) on rice growth, iron plaque formation, Cd accumulation in rice plants and bacterial community in rice rhizosphere soil was investigated. The biomass of rice plants was significantly increased by S0 addition (19.5–73.6%). The addition of S0 increased the formation of iron plaque by 24.3–45.8%, meanwhile the amount of Cd sequestered on iron plaque increased. In soil treated with 5 mg/kg Cd, addition of 0.2 g/kg S0 decreased the diffusive gradients in thin films (DGT) extractable Cd by 60.0%. The application of S0 significantly decreased the concentration of Cd in rice grain by 12.1% (0.1 g/kg) and 36.6% (0.2 g/kg) respectively. The addition of S0 significantly increased the ratio of Acidobacteria, Bacteroidetes in rice rhizosphere soil. Meanwhile, the ratio of Planctomycetes and Chloroflexi decreased. The results indicated that promoting Fe- and S-reducing and residue decomposition bacterial in the rhizosphere by S0 may be one biological reason for reducing Cd risk in the soil-rice system.

Iron Plaque: A Barrier Layer to the Uptake and Translocation of Copper Oxide Nanoparticles by Rice Plants

2018 ◽  
Vol 52 (21) ◽  
pp. 12244-12254 ◽  
Author(s):  
Cheng Peng ◽  
Si Chen ◽  
Chensi Shen ◽  
Miao He ◽  
Yunqi Zhang ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Barrier Layer ◽  
Copper Oxide Nanoparticles ◽  
Iron Plaque ◽  
Oxide Nanoparticles ◽  
Rice Plants
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