Arsenic in Rice (Oryza sativa L.) Related to Dynamics of Arsenic and Silicic Acid in Paddy Soils

被引:135
作者
Bogdan, Katja [1 ]
Schenk, Manfred K. [1 ]
机构
[1] Leibniz Univ Hannover, Inst Plant Nutr, D-30419 Hannover, Germany
关键词
D O I
10.1021/es801194q
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Paddy rice is a global staple food which in some circumstances can contain high levels of the toxic element arsenic (As). In order to elucidate factors influencing As dissolution in the soil solution during paddy rice cultivation, rice (Oryza sativa L. "Selenio") was cultivated to maturity in six paddy soils in the greenhouse in 2005 and 2006. Concentrations of Mn, Fe, As, P, and silicic acid in soil solution and As concentrations in rice straw and polished rice grain were determined. There was a close relationship between Fe and As concentrations in the soil solution, suggesting that the major part of dissolved As originated from reduced iron-(hydr)oxide. However, in addition to the factors causing As dissolution in the soil, other factors influenced the uptake of As by rice. The inhibitory effect of indigenous silicic acid in the soil solution on As uptake was clearly shown. This implied that soils with high plant available Si contents resulted in low plant As contents and that Si application to soils may decrease the As content of rice.
引用
收藏
页码:7885 / 7890
页数:6
相关论文
共 47 条
[1]   Uptake kinetics of arsenic species in rice plants [J].
Abedin, MJ ;
Feldmann, J ;
Meharg, AA .
PLANT PHYSIOLOGY, 2002, 128 (03) :1120-1128
[2]   USE OF POLAROGRAPHY IN ASSAY OF OXYGEN DIFFUSING FROM ROOTS IN ANAEROBIC MEDIA [J].
ARMSTRONG, W .
PHYSIOLOGIA PLANTARUM, 1967, 20 (03) :540-+
[3]   Influence of redox potential (Eh) on the availability of arsenic species in soils and soils amended with biosolid [J].
Ascar, Loreto ;
Ahumada, Ines ;
Richter, Pablo .
CHEMOSPHERE, 2008, 72 (10) :1548-1552
[4]   ARSENIC UPTAKE BY BARLEY SEEDLINGS [J].
ASHER, CJ ;
REAY, PF .
AUSTRALIAN JOURNAL OF PLANT PHYSIOLOGY, 1979, 6 (04) :459-466
[5]   Arsenite retention mechanisms within estuarine sediments of Pescadero, CA [J].
Bostick, BC ;
Chen, C ;
Fendorf, S .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2004, 38 (12) :3299-3304
[6]   Spatial distribution and temporal variability of arsenic in irrigated rice fields in Bangladesh. 2. Paddy soil [J].
Dittmar, Jessica ;
Voegelin, Andreas ;
Roberts, Linda C. ;
Hug, Stephan J. ;
Saha, Ganesh C. ;
Ali, M. Ashraf ;
Badruzzaman, A. Borhan M. ;
Kretzschmar, Ruben .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2007, 41 (17) :5967-5972
[7]   THE ANOMALY OF SILICON IN PLANT BIOLOGY [J].
EPSTEIN, E .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1994, 91 (01) :11-17
[8]   Is the effect of silicon on rice uptake of arsenate (Asv) related to internal silicon concentrations, iron plaque and phosphate nutrition? [J].
Guo, W. ;
Zhu, Y.-G. ;
Liu, W.-J. ;
Liang, Y.-C. ;
Geng, C.-N. ;
Wang, S.-G. .
ENVIRONMENTAL POLLUTION, 2007, 148 (01) :251-257
[9]   Effect of silicate on the growth and arsenate uptake by rice (Oryza sativa L.) seedlings in solution culture [J].
Guo, W ;
Hou, YL ;
Wang, SG ;
Zhu, YG .
PLANT AND SOIL, 2005, 272 (1-2) :173-181
[10]  
Inskeep W. P., 2001, ENV CHEM ARSENIC