Environmental Science and Technology 43(15) 5878-5883 Aug 2009 [Refereed]
In accordance with a new international standard set by the Codex Alimentarius Commission for cadmium (Cd) content in rice grain, Japan must perform large-scale remediation of paddy fields polluted with low to moderate levels of Cd. Phytoextraction...
Soil Science and Plant Nutrition 55(3) 421-427 Jun 2009 [Refereed]
Some indica rice varieties are potential phytoextractors for paddy fields polluted with Cd because of their high biomass and because they can accumulate Cd to moderate levels in their shoots. To establish a practical phytoextraction system, phytoe...
Journal of Hazardous Materials 162(2-3) 1185-1192 Mar 2009 [Refereed]
Phytoextraction by hyperaccumulators has been proposed for decreasing toxic-metal concentrations of contaminated soils. However, hyperaccumulators have several shortcomings to introduce these species into Asian Monsoon's agricultural fields contam...
Environmental Science and Technology 42(16) 6167-6172 Aug 2008 [Refereed]
Soybeans (Glycine max (L.) Merr.) are the major summer crop grown in Japanese upland fields (characterized by aerobic soil) that have been converted from paddies. To evaluate the effect of phytoextraction by rice on the seed cadmium (Cd) content o...
Selecting a phytoextraction plant with high Cd-accumulating ability based on the plant's compatibility with mechanized cultivation techniques may yield more immediately practical results than selection based on high tolerance to Cd. Rice (Oryza sa...
Soil Science and Plant Nutrition 52(1) 32-42 Feb 2006
We evaluated the ability of Brassica juncea (L.), which has already been recognized as a plant suitable for metal phytoremediation, and of several other plant species (maize, rice and sugar beet) to extract cadmium (Cd) from soils with moderately ...
Soil Science and Plant Nutrition 51(6) 893-898 Oct 2005
To develop a new method for the extraction of plant-available cadmium (Cd), the correlation between the Cd content of polluted soil extracted with several extractants and the Cd content of wheat plants (variety "A"; Triticum aestivum L.) was exami...
Soil Science and Plant Nutrition 51(1) 101-108 Feb 2005
A pot experiment was conducted to investigate whether the shoot cadmium (Cd) concentration in 11 rice and 10 soybean cultivars varied among 4 soils with different levels of Cd contamination. Significant differences in shoot Cd concentration were f...
Annual Meeting of the Japanese Society of Toxicology 2014
日本人は、食品から取るカドミウム（Cd）の約4割をコメから摂取します。農林水産省の実態調査においてCdの国際基準値を超過した割合が高い畑作物があります。また、日本では過去の鉱山開発の影響で、Cd濃度が高いコメが生産される地域が未だ存在します。そこで、低コストで実用的な農耕地土壌修復技術(土壌洗浄、ファイトレメディエーション）を開発しました。土壌洗浄は水田に塩化鉄溶液を投入して土壌に吸着している Cd を水中に溶出させ、排水処理装置でCd を回収します。ファイトレメディエーションではCd を...
