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N]N
gas for visualization of nitrogen fixation and translocation in nodulated soybeanYin, Y.-G.*; Ishii, Satomi*; Suzui, Nobuo*; Igura, Masato*; Kurita, Keisuke; Miyoshi, Yuta*; Nagasawa, Naotsugu*; Taguchi, Mitsumasa*; Kawachi, Naoki*
Applied Radiation and Isotopes, 151, p.7 - 12, 2019/09
Times Cited Count：6 Percentile：55.67(Chemistry, Inorganic & Nuclear)Accurate analysis of N fixation in leguminous crops requires determination of N utilization within an intact plant
however, most approaches require tissue disassembly. We developed a simple and rapid technique to generate high-purity and high-yield [N]N gas and obtained real-time images of N fixation in an intact soybean plant. The purification efficiency was 
81.6% after decay correction.
Cd distribution using positron-emitting tracer imaging systemSuzui, 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
N-labeled nitrogen gas tracer for the imaging of nitrogen fixation in soybean nodulesIshii, 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
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：47 Percentile：77.23(Environmental Sciences)
) using positron-emitting Cd tracerIshikawa, 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
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：349 Percentile：99.68(Multidisciplinary Sciences)Rice ( 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 (
), and the transporter encoded by the mutant gene 
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 . Our findings would be useful for greatly reducing the Cd level of paddy rice.
) using positron-emitting Cd tracerIshikawa, 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：71 Percentile：88.66(Plant Sciences)Igura, Masato*; Suzui, Nobuo; Abe, Tadashi*; Kuramata, Masato*; Fujimaki, Shu; Ishikawa, Satoru*
no journal, ,
no abstracts in English
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
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
Ishikawa, Satoru*; Abe, Tadashi*; Kuramata, Masato*; Igura, Masato*; Suzui, Nobuo; Ito, Sayuri*; Ishii, Satomi; Kawachi, Naoki; Fujimaki, Shu; Yamamoto, Toshio*; et al.
no journal, ,
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.
CdSuzui, 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
CdSuzui, Nobuo; Ishikawa, Satoru*; Ito, Sayuri*; Ishii, Satomi; Igura, Masato*; Abe, Tadashi*; Kuramata, Masato*; Kawachi, Naoki; Fujimaki, Shu
no journal, ,
CdSuzui, Nobuo; Ishikawa, Satoru*; Ito, Sayuri*; Ishii, Satomi; Igura, Masato*; Abe, Tadashi*; Kuramata, Masato*; Kawachi, Naoki; Fujimaki, Shu
no journal, ,
no abstracts in English
N-labeled nitrogen gas tracer for the imaging of nitrogen fixation in soybean nodulesIshii, 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
