J-GLOBAL         Last updated: Aug 21, 2017 at 11:52
National Agriculture and Food Research Organization
Institute for Agro-Environmental Sciences Division of Hazardous Chemicals Crop Safety Unit

Research Areas


Published Papers

Tadashi Abe, Masashi Ito, Ryuichi Takahashi, Toshimitsu Honma, Naoki Sekiya, Kensuke Shirao, Masato Kuramata, Masaharu Murakami, Satoru Ishikawa
Soil Science and Plant Nutrition   1-8   Jul 2017
© 2017 Japanese Society of Soil Science and Plant Nutrition Previously, we showed that qCdp7, an allele identified in the high-Cd-accumulating indica rice variety ‘Jarjan,’ is associated with effective phytoextraction of Cd from paddy soils. Howev...
Ishikawa Naoyuki, Ishioka Gen, Yanaka Mikiko, Takata Kanenori, Murakami Masaharu
PLANT PRODUCTION SCIENCE   18(2) 137-145   Apr 2015   [Refereed]
Sato Atsushi, Takeda Hiroyuki, Oyanagi Wataru, Nishihara Eiji, Murakami Masaharu
JOURNAL OF HAZARDOUS MATERIALS   181(1-3) 298-304   Sep 2010   [Refereed]
Masaharu Murakami, Fumihiko Nakagawa, Noriharu Ae, Noriharu Ae, Masashi Ito, Tomohito Arao
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...
Naoyuki Ishikawa, Gen Ishioka, Mikiko Yanaka, Kanenori Takata, Masaharu Murakami
Plant Production Science   18 137-145   Jan 2015
© 2015, Crop Science Society of Japan. All rights reserved. Chloride (Cl) in saline soil increases the cadmium (Cd) concentration in crops. Here, we conducted a field experiment to investigate changes in Cd concentrations in wheat grain after the ...
Toshiyuki Ibaraki, Toshiyuki Ibaraki, Naohiko Kuroyanagi, Masaharu Murakami
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...
Bolan Nanthi S., Makino Tomoyuki, Kunhikrishnan Anitha, Kim Pil-Joo, Ishikawa Satoru, Murakami Masaharu, Naidu Ravi, Kirkham Mary B.
ADVANCES IN AGRONOMY, VOL 119   119 183-273   2013   [Refereed]
Arao Tomohito, Ishikawa Satoru, Murakami Masaharu, Abe Kaoru, Maejima Yuji, Makino Tomoyuki
PADDY AND WATER ENVIRONMENT   8(3) 247-257   Sep 2010   [Refereed]
Masaharu Murakami, Noriharu Ae
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...
Masaharu Murakami, Noriharu Ae, Noriharu Ae, Satoru Ishikawa, Toshiyuki Ibaraki, Masashi Ito
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...
M. Murakami, N. Ae, S. Ishikawa
Environmental Pollution   145(1) 96-103   Jan 2007
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...
Satoru Ishikawa, Satoru Ishikawa, Noriharu Ae, Masaharu Murakami, Tadao Wagatsuma
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 ...
Toshiyuki Ibaraki, Kazuhiro Kadoshige, Masaharu Murakami
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...
Satoru Ishikawa, Megumi Sugiyama, Masaharu Murakami, Tomohito Arao, Noriharu Ae
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...


Murakami M., Sawamoto T., Maejima Y.
Journal of the science of soil and manure, Japan   74(2)    Apr 2003

Conference Activities & Talks

ARAO Tomohito, ISHIKAWA Satoru, MAKINO Tomoyuki, MURAKAMI Masaharu, KAWASAKI Akira
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...

Research Grants & Projects

Phytorextraction of cadmium by rice capable of accumulating cadmium at high levels
0100 (Japanese Only)
Project Year: 2008 - 2012