Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Altering the localization and toxicity of arsenic in rice grain

Journal Article · · Scientific Reports
 [1];  [2]
  1. Univ. of Delaware, Newark, DE (United States). Dept. of Plant and Soil Sciences; OSTI
  2. Univ. of Delaware, Newark, DE (United States). Dept. of Plant and Soil Sciences
Previous work has shown that inorganic As localizes in rice bran whereas DMA localizes in the endosperm, but less is known about co-localization of As and S species and how they are affected by growing conditions. We used high-resolution synchrotron X-ray fluorescence imaging to image As and S species in rice grain from plants grown to maturity in soil (field and pot) and hydroponically (DMA or arsenite dosed) at field-relevant As concentrations. In hydroponics, arsenite was localized in the ovular vascular trace (OVT) and the bran while DMA permeated the endosperm and was absent from the OVT in all grains analyzed, and As species had no affect on S species. In pot studies, soil amended with Si-rich rice husk with higher DMA shifted grain As into the endosperm for both japonica and indica ecotypes. In field-grown rice from low-As soil, As localized in the OVT as arsenite glutathione, arsenite, and DMA. Results support a circumferential model of grain filling for arsenite and DMA and show Si-rich soil amendments alter grain As localization, potentially lessening risk to rice consumers.
Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
Sponsoring Organization:
National Institutes of Health (NIH); National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1903974
Journal Information:
Scientific Reports, Journal Name: Scientific Reports Journal Issue: 1 Vol. 12; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (66)

Arsenic uptake is suppressed in a rice mutant defective in silicon uptake journal October 2009
Silicon decreases the arsenic level in rice grain by limiting arsenite transport journal August 2013
Sink anatomy in relation to solute movement in rice (Oryza sativa L.): A summary of findings journal January 1984
Transport of assimilates in the developing caryopsis of rice (Oryza sativa L.): The pathways of water and assimilated carbon journal August 1981
Transport of assimilates in the developing caryopsis of rice (Oryza sativa L.): Ultrastructure of the pericarp vascular bundle and its connections with the aleurone layer journal May 1981
Structural and histochemical studies on grain-filling in the caryopsis of rice (Oryza sativa L.) journal June 2003
Elemental imaging at the nanoscale: NanoSIMS and complementary techniques for element localisation in plants journal November 2011
Differential toxicity and accumulation of inorganic and methylated arsenic in rice journal July 2012
Silicon has opposite effects on the accumulation of inorganic and methylated arsenic species in rice journal December 2013
Biogeochemical impacts of silicon-rich rice residue incorporation into flooded soils: Implications for rice nutrition and cycling of arsenic journal September 2015
The role of small molecules in restricting rice accumulation of dimethylarsinic acid journal January 2020
Influence of Sulfur on Transcription of Genes Involved in Arsenic Accumulation in Rice Grains journal October 2015
Silicon Management and Sustainable Rice Production book January 1996
On the Use of Silicon as an Agronomic Mitigation Strategy to Decrease Arsenic Uptake by Rice book January 2018
Localization and speciation of arsenic and trace elements in rice tissues journal July 2009
Silicon, the silver bullet for mitigating biotic and abiotic stress, and improving grain quality, in rice? journal December 2015
Elemental distribution in developing rice grains and the effect of flag-leaf arsenate exposure journal May 2018
Speciation and location of arsenic and antimony in rice samples around antimony mining area journal September 2019
Distribution of nutrient and toxic elements in brown and polished rice journal August 2019
Defining the distribution of arsenic species and plant nutrients in rice (Oryza sativa L.) from the root to the grain journal November 2011
Approaches and challenges to engineering seed phytate and total phosphorus journal October 2009
Reduced arsenic accumulation in rice (Oryza sativa L.) shoot involves sulfur mediated improved thiol metabolism, antioxidant system and altered arsenic transporters journal February 2016
Silicon-rich amendments in rice paddies: Effects on arsenic uptake and biogeochemistry journal May 2018
Si-induced DMA desorption is not the driver for enhanced DMA availability after Si addition to flooded soils journal October 2020
Discrimination of Thioarsenites and Thioarsenates by X-ray Absorption Spectroscopy journal September 2009
How Rice ( Oryza sativa L.) Responds to Elevated As under Different Si-Rich Soil Amendments journal August 2017
Silicon Decreases Dimethylarsinic Acid Concentration in Rice Grain and Mitigates Straighthead Disorder journal April 2018
Modifying the Parboiling of Rice to Remove Inorganic Arsenic, While Fortifying with Calcium journal April 2019
Detection of Thioarsenates in Rice Grains and Rice Products journal February 2021
Soil Incorporation of Silica-Rich Rice Husk Decreases Inorganic Arsenic in Rice Grain journal May 2016
Comparison of a Chemical and Enzymatic Extraction of Arsenic from Rice and an Assessment of the Arsenic Absorption from Contaminated Water by Cooked Rice journal June 2005
X-ray Absorption Near-Edge Structure Analysis of Arsenic Species for Application to Biological Environmental Samples journal January 2005
Effects of Arsenic Compound Amendment on Arsenic Speciation in Rice Grain journal February 2011
Silicate Mineral Impacts on the Uptake and Storage of Arsenic and Plant Nutrients in Rice (Oryza sativa L.) journal November 2012
Microbial Arsenic Methylation in Soil and Rice Rhizosphere journal March 2013
Methylated Arsenic Species in Rice: Geographical Variation, Origin, and Uptake Mechanisms journal April 2013
Measurement of Inorganic Arsenic Species in Rice after Nitric Acid Extraction by HPLC-ICPMS: Verification Using XANES journal May 2013
Speciation and Localization of Arsenic in White and Brown Rice Grains journal January 2008
Thiolated arsenic species observed in rice paddy pore waters journal February 2020
Arsenic–glutathione complexes—their stability in solution and during separation by different HPLC modes journal January 2004
Identification of tetramethylarsonium in rice grains with elevated arsenic content journal January 2011
Analysis of arsenic in rice grains using ICP-MS and fs LA-ICP-MS journal January 2014
Fast ion chromatography-ICP-QQQ for arsenic speciation journal January 2015
The redistribution of protein sulfur in transgenic rice expressing a gene for a foreign, sulfur-rich protein journal March 2003
The MicroAnalysis Toolkit: X-ray Fluorescence Image Processing Software conference January 2011
Uptake and translocation of inorganic and methylated arsenic species by plants journal January 2007
Transporters of arsenite in rice and their role in arsenic accumulation in rice grain journal July 2008
A rice ABC transporter, OsABCC1, reduces arsenic accumulation in the grain journal October 2014
Glutathione levels in phloem sap of rice plants under sulfur deficient conditions journal March 2000
Survey of total arsenic and arsenic speciation in US-produced rice as a reference point for evaluating change and future trends journal November 2009
Dimethylarsinic acid is the causal agent inducing rice straighthead disease journal May 2020
The Rice Aquaporin Lsi1 Mediates Uptake of Methylated Arsenic Species journal June 2009
Grain Unloading of Arsenic Species in Rice   journal October 2009
Reducing greenhouse gas emissions, water use, and grain arsenic levels in rice systems journal September 2014
Speciation and distribution of arsenic and localization of nutrients in rice grains journal October 2009
Spatial distribution of arsenic and temporal variation of its concentration in rice journal September 2010
Phloem transport of arsenic species from flag leaf to grain during grain filling journal June 2011
Methylated arsenic species in plants originate from soil microorganisms journal November 2011
Rice caryopsis development I: Dynamic changes in different cell layers: Rice caryopsis development I journal December 2015
Rice caryopsis development II: Dynamic changes in the endosperm: Rice caryopsis development-endosperm II journal September 2016
SWEET11 and 15 as key players in seed filling in rice journal February 2018
Arsenic as a Food Chain Contaminant: Mechanisms of Plant Uptake and Metabolism and Mitigation Strategies journal June 2010
Manipulating the Phytic Acid Content of Rice Grain Toward Improving Micronutrient Bioavailability journal January 2018
Excessive sulfur supply reduces arsenic accumulation in brown rice   journal March 2013
Sulfur Nutrition of Rice. II. Effect of Source and Rate of S on Growth and Yield Under Flooded Conditions journal May 1979
Mobilization of Arsenite by Competitive Interaction with Silicic Acid journal January 2006

Similar Records

Grain Unloading of Arsenic Species in Rice
Journal Article · Sun Jan 10 23:00:00 EST 2010 · Plant Physiol. · OSTI ID:1002242

Evaluation of quantitative synchrotron radiation micro-X-ray fluorescence in rice grain
Journal Article · Tue Feb 14 19:00:00 EST 2023 · Journal of Synchrotron Radiation (Online) · OSTI ID:2004589

Phloem Transport of Arsenic Species from Flag Leaf to Grain During Grain Filling
Journal Article · Fri Dec 30 23:00:00 EST 2011 · New Phytologist · OSTI ID:1042289