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Journal Articles

Whole-plant imaging of $$^{107}$$Cd distribution using positron-emitting tracer imaging system

Suzui, Nobuo; Yin, Y.-G.; Igura, Masato*; Ishii, Satomi; Kawachi, Naoki; Ishikawa, Satoru*; Fujimaki, Shu

JAEA-Review 2013-059, JAEA Takasaki Annual Report 2012, P. 101, 2014/03

Journal Articles

Production of $$^{13}$$N-labeled nitrogen gas tracer for the imaging of nitrogen fixation in soybean nodules

Ishii, Satomi; Igura, Masato*; Yin, Y.-G.; Hung, N. V. P.*; Suzui, Nobuo; Kawachi, Naoki; Koyanagi, Atsushi*; Oyama, Takuji*; Fujimaki, Shu

JAEA-Review 2013-059, JAEA Takasaki Annual Report 2012, P. 98, 2014/03

Journal Articles

Nitrate facilitates cadmium uptake, transport and accumulation in the hyperaccumulator ${it Sedum plumbizincicola}$

Hu, P.*; Yin, Y.-G.; Ishikawa, Satoru*; Suzui, Nobuo; Kawachi, Naoki; Fujimaki, Shu; Igura, Masato*; Yuan, C.*; Huang, J.*; Li, Z.*; et al.

Environmental Science and Pollution Research, 20(9), p.6306 - 6316, 2013/09

 Times Cited Count:31 Percentile:24.63(Environmental Sciences)

Journal Articles

Real-time imaging and analysis of differences in cadmium dynamics in rice cultivars (${it Oryza sativa}$) using positron-emitting $$^{107}$$Cd tracer

Ishikawa, Satoru*; Suzui, Nobuo; Ito, Sayuri*; Ishii, Satomi; Igura, Masato*; Abe, Tadashi*; Kuramata, Masato*; Kawachi, Naoki; Fujimaki, Shu

JAEA-Review 2012-046, JAEA Takasaki Annual Report 2011, P. 91, 2013/01

Journal Articles

Ion-beam irradiation, gene identification, and marker-assisted breeding in the development of low-cadmium rice

Ishikawa, Satoru*; Ishimaru, Yasuhiro*; Igura, Masato*; Kuramata, Masato*; Abe, Tadashi*; Senoura, Takeshi*; Hase, Yoshihiro; Arao, Tomohito*; Nishizawa, Naoko*; Nakanishi, Hiromi*

Proceedings of the National Academy of Sciences of the United States of America, 109(47), p.19166 - 19171, 2012/11

 Times Cited Count:210 Percentile:0.35(Multidisciplinary Sciences)

Rice (${it Oryza sativa}$ L.) is one of major sources of dietary intake of cadmium (Cd) for the human. However, the reliable technique to reduce substantially rice Cd contamination has not been offered so far. Here, we report the ion-beam irradiated rice mutants that do not nearly accumulate Cd in the grains and the mutant gene responsible for the Cd limitation. We found three mutants in which a favorable low-Cd trait is expressed by the different mutations on the same gene (${it OsNRAMP5}$), and the transporter encoded by the mutant gene ${it osnramp5}$ had a defective function of root Cd influx. The mutants adapted well in the Cd-polluted paddy fields by exhibiting nearly non-detectable Cd concentrations in their grains in accordance with no adverse economic traits. The DNA marker has been developed to breed new cultivars carrying ${it osnramp5}$. Our findings would be useful for greatly reducing the Cd level of paddy rice.

Journal Articles

Real-time imaging and analysis of differences in cadmium dynamics in rice cultivars ($$it{Oryza sativa}$$) using positron-emitting $$^{107}$$Cd tracer

Ishikawa, Satoru*; Suzui, Nobuo; Ito, Sayuri*; Ishii, Satomi; Igura, Masato*; Abe, Tadashi*; Kuramata, Masato*; Kawachi, Naoki; Fujimaki, Shu

BMC Plant Biology, 11, p.172_1 - 172_12, 2011/11

 Times Cited Count:52 Percentile:11.04(Plant Sciences)

Oral presentation

Heavy metal concentrations in the phloem sap of rice cultivars that differed in grain Cd concentrations

Igura, Masato*; Suzui, Nobuo; Abe, Tadashi*; Kuramata, Masato*; Fujimaki, Shu; Ishikawa, Satoru*

no journal, , 

no abstracts in English

Oral presentation

Development of measuring technique for radiocesium; Simple method for analysis of agricultural products, imaging of the dynamics of radiocesium into plant from the soil

Yin, Y.-G.; Suzui, Nobuo; Kawachi, Naoki; Yamaguchi, Mitsutaka; Tanoi, Keitaro*; Nakanishi, Tomoko*; Chino, Mitsuo*; Nakamura, Shinichi*; Watabe, Hiroshi*; Yamamoto, Seiichi*; et al.

no journal, , 

no abstracts in English

Oral presentation

Cadmium uptake characteristics of low-cadmium koshihikari mutant

Igura, Masato*; Abe, Tadashi*; Kuramata, Masato*; Suzui, Nobuo; Kawachi, Naoki; Ishii, Satomi; Yin, Y.-G.; Fujimaki, Shu; Ishikawa, Satoru*

no journal, , 

no abstracts in English

Oral presentation

Genetic and physiological characteristics of high-Cd accumulating rice cultivars

Ishikawa, Satoru*; Abe, Tadashi*; Kuramata, Masato*; Igura, Masato*; Suzui, Nobuo; Ito, Sayuri*; Ishii, Satomi; Kawachi, Naoki; Fujimaki, Shu; Yamamoto, Toshio*; et al.

no journal, , 

Oral presentation

Live imaging of dynamic transport of cadmium from culture to shoot via root

Suzui, Nobuo; Ishikawa, Satoru*; Igura, Masato; Ishii, Satomi; Kuramata, Masato*; Abe, Tadashi*; Makino, Tomoyuki*; Yin, Y.-G.; Kawachi, Naoki; Fujimaki, Shu

no journal, , 

PETIS has been applied for analyses of cadmium transport from the root organ to the grains in rice plants in previous studies. In this study, we first realized direct imaging and quantitative analysis of the dynamic process of cadmium transport from hydroponic culture to shoot via root organ. When a radiotracer is applied to plant roots for imaging experiments, it has been usual that the region of application is shielded or set off from the field of view because of too high radioactivity there. We successfully obtained serial quantitative images by developing suitable vessels for observation and arranging best radioactivity of the tracer. High-Cd-accumulating lines of rice and Sedum, a hyper accumulator plant for heavy metals, were subjected to this experimental system and analyzed for their abilities of Cd uptake.

Oral presentation

Direct imaging of root cadmium uptake in rice cultivars using $$^{107}$$Cd

Suzui, Nobuo; Igura, Masato*; Kawachi, Naoki; Ishii, Satomi; Yin, Y.-G.; Fujimaki, Shu; Kuramata, Masato*; Abe, Tadashi*; Makino, Tomoyuki*; Ishikawa, Satoru*

no journal, , 

no abstracts in English

Oral presentation

Direct imaging and analysis of root uptake for cadmium using $$^{107}$$Cd

Suzui, Nobuo; Ishikawa, Satoru*; Ito, Sayuri*; Ishii, Satomi; Igura, Masato*; Abe, Tadashi*; Kuramata, Masato*; Kawachi, Naoki; Fujimaki, Shu

no journal, , 

Oral presentation

Direct imaging and analysis of root uptake for cadmium using $$^{107}$$Cd

Suzui, Nobuo; Ishikawa, Satoru*; Ito, Sayuri*; Ishii, Satomi; Igura, Masato*; Abe, Tadashi*; Kuramata, Masato*; Kawachi, Naoki; Fujimaki, Shu

no journal, , 

no abstracts in English

Oral presentation

Improvement of the production of $$^{13}$$N-labeled nitrogen gas tracer for the imaging of nitrogen fixation in soybean nodules

Ishii, Satomi; Igura, Masato*; Suzui, Nobuo; Yin, Y.-G.; Kawachi, Naoki; Koyanagi, Atsushi*; Nguyen Van Phi, H.*; Oyama, Takuji*; Fujimaki, Shu

no journal, , 

no abstracts in English

15 (Records 1-15 displayed on this page)
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