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Journal Articles

Quantitative micro-X-ray fluorescence scanning spectroscopy of wet sediment based on the X-ray absorption and emission theories; Its application to freshwater lake sedimentary sequences

Katsuta, Nagayoshi*; Takano, Masao*; Sano, Naomi; Tani, Yukinori*; Ochiai, Shinya*; Naito, Sayuri*; Murakami, Takuma*; Niwa, Masakazu; Kawakami, Shinichi*

Sedimentology, 66(6), p.2490 - 2510, 2019/10

 Times Cited Count:2 Percentile:39.34(Geology)

Micro-X-ray fluorescence (XRF) scanning spectroscopy of marine and lake sedimentary sequences can provide detailed paleoenvironmental records available through element intensities proxy data. However, problems for effects of interstitial pore water on the micro-XRF intensities have been pointed out so far because of direct measurement on the split wet sediment surfaces. In this study, new methods for the XRF corrections were developed by being considered with the micro-X-ray scanning spectroscopy.

Journal Articles

Hydrological and climate changes in southeast Siberia over the last 33 kyr

Katsuta, Nagayoshi*; Ikeda, Hisashi*; Shibata, Kenji*; Kokubu, Yoko; Murakami, Takuma*; Tani, Yukinori*; Takano, Masao*; Nakamura, Toshio*; Tanaka, Atsushi*; Naito, Sayuri*; et al.

Global and Planetary Change, 164, p.11 - 26, 2018/05

 Times Cited Count:6 Percentile:46.34(Geography, Physical)

Paleoenvironmental and paleoclimate changes in Siberia were reconstructed by continuous, high-resolution records of chemical compositions from a sediment core retrieved from the Buguldeika Saddle, Lake Baikal, dating back to the last 33 cal. ka BP. The Holocene climate followed by a shift at ca. 6.5 cal. ka BP toward warm and dry, suggesting that the climate system transition from the glacial to interglacial state occurred. In the last glacial period, the deposition of carbonate mud from the Primorsky Range was associated with Heinrich events (H3 and H1) and the Selenga River inflow was caused by meltwater of mountain glaciers in the Khamar-Daban Range. The anoxic bottom-water during Allerod-Younger Dryas was probably a result of weakened ventilation associated with reduced Selenga River inflow and microbial decomposition of organic matters from the Primorsky Range. The rapid decline in precipitation during the early Holocene may have been a response to the 8.2 ka cooling event.

Journal Articles

Application of glutathione to roots selectively inhibits cadmium transport from roots to shoots in oilseed rape

Nakamura, Shinichi*; Suzui, Nobuo; Nagasaka, Toshinori*; Komatsu, Fumiya*; Ishioka, Noriko; Ito, Sayuri*; Kawachi, Naoki; Rai, Hiroki*; Hattori, Hiroyuki*; Chino, Mitsuo*; et al.

Journal of Experimental Botany, 64(4), p.1073 - 1081, 2013/02

 Times Cited Count:47 Percentile:87.93(Plant 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

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:58 Percentile:88.55(Plant Sciences)

Journal Articles

Real-time whole-plant imaging of $$^{11}$$C translocation using positron-emitting tracer imaging system

Kawachi, Naoki; Suzui, Nobuo; Ishii, Satomi; Ito, Sayuri; Ishioka, Noriko; Yamazaki, Haruaki; Iwasaki, Aya*; Ogawa, Kenichi*; Fujimaki, Shu

Nuclear Instruments and Methods in Physics Research A, 648(Suppl.1), p.S317 - S320, 2011/08

 Times Cited Count:14 Percentile:74.14(Instruments & Instrumentation)

Journal Articles

Carbon translocation in a whole plant body by using Positron Emitting Tracer Imaging System (PETIS) and carbon-11-labeled carbon dioxide ($$^{11}$$CO$$_{2}$$)

Kawachi, Naoki; Suzui, Nobuo; Ishii, Satomi; Ito, Sayuri; Ishioka, Noriko; Yamazaki, Haruaki; Iwasaki, Aya*; Ogawa, Kenichi*; Fujimaki, Shu

JAEA-Review 2010-065, JAEA Takasaki Annual Report 2009, P. 101, 2011/01

Journal Articles

Visualization of $$^{107}$$Cd accumulation in oilseed rape plants treated with glutathione

Nakamura, Shinichi*; Suzui, Nobuo; Ito, Sayuri*; Kawachi, Naoki; Ishioka, Noriko; Rai, Hiroki*; Hattori, Hiroyuki*; Chino, Mitsuo*; Fujimaki, Shu

JAEA-Review 2010-065, JAEA Takasaki Annual Report 2009, P. 104, 2011/01

Journal Articles

Quantitative evaluation of rice varieties in cadmium uptake activities for remediation of cadmium-contaminated soil

Ishikawa, Satoru*; Suzui, Nobuo; Ito, Sayuri*; Ishii, Satomi; Yamazaki, Haruaki*; Kawachi, Naoki; Ishioka, Noriko; Fujimaki, Shu

JAEA-Review 2010-065, JAEA Takasaki Annual Report 2009, P. 102, 2011/01

Journal Articles

Regulation of root nodule formation in leguminous plants

Ito, Sayuri; Fujimaki, Shu; Kato, Taichi*; Otake, Norikuni*; Sueyoshi, Kuni*; Oyama, Takuji*

Nitrogen assimilation in plants, p.205 - 214, 2010/07

Journal Articles

Real-time analysis of translocation of photosynthates to nodules in soybean plants using $$^{11}$$CO$$_{2}$$ and a positron-emitting tracer imaging system (PETIS)

Ito, Sayuri; Suzui, Nobuo; Kawachi, Naoki; Ishii, Satomi; Ishioka, Noriko; Fujimaki, Shu

Radioisotopes, 59(3), p.145 - 154, 2010/03

no abstracts in English

Journal Articles

Tracing cadmium from culture to spikelet; Noninvasive imaging and quantitative characterization of absorption, transport, and accumulation of cadmium in an intact rice plant

Fujimaki, Shu; Suzui, Nobuo; Ishioka, Noriko; Kawachi, Naoki; Ito, Sayuri; Chino, Mitsuo*; Nakamura, Shinichi*

Plant Physiology, 152(4), p.1796 - 1806, 2010/02

 Times Cited Count:157 Percentile:98.03(Plant Sciences)

Journal Articles

Cadmium transport in young soybean plant using a positron-emitting $$^{107}$$Cd

Ito, Sayuri; Suzui, Nobuo; Kawachi, Naoki; Ishioka, Noriko; Fujimaki, Shu

JAEA-Review 2009-041, JAEA Takasaki Annual Report 2008, P. 104, 2009/12

Journal Articles

Kinetic analysis of cadmium uptake in oilseed rape plants using positron multi-probe system

Suzui, Nobuo; Nakamura, Shinichi*; Ito, Sayuri; Kawachi, Naoki; Ishioka, Noriko; Fujimaki, Shu

JAEA-Review 2009-041, JAEA Takasaki Annual Report 2008, P. 102, 2009/12

Journal Articles

Visualization of $$^{107}$$Cd translocation in Tobacco plants

Nakamura, Shinichi*; Suzui, Nobuo; Ishioka, Noriko; Kawachi, Naoki; Ito, Sayuri; Hattori, Hiroyuki*; Chino, Mitsuo*; Fujimaki, Shu

JAEA-Review 2009-041, JAEA Takasaki Annual Report 2008, P. 103, 2009/12

Journal Articles

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

Ishii, Satomi; Suzui, Nobuo; Ito, Sayuri; Ishioka, Noriko; Kawachi, Naoki; Matsuhashi, Shimpei; Otake, Norikuni*; Oyama, Takuji*; Fujimaki, Shu

JAEA-Review 2009-041, JAEA Takasaki Annual Report 2008, P. 106, 2009/12

Journal Articles

Analysis of translocation and distribution of photoassimilates in eggplant fruit in relation to positions of the source leaves using the positron-emitting tracer imaging system

Kikuchi, Kaori*; Kawachi, Naoki; Ishii, Satomi; Suzui, Nobuo; Ito, Sayuri; Ishioka, Noriko; Honda, Ichiro*; Fujimaki, Shu

JAEA-Review 2009-041, JAEA Takasaki Annual Report 2008, P. 105, 2009/12

Journal Articles

Molecular imaging for plant physiology; Imaging of carbon translocation to sink organs

Kawachi, Naoki; Suzui, Nobuo; Ishii, Satomi; Ito, Sayuri; Ishioka, Noriko; Kikuchi, Kaori*; Tsukamoto, Takashi*; Kusakawa, Tomoyuki*; Fujimaki, Shu

Proceedings of 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference (2009 NSS/MIC) (CD-ROM), p.1257 - 1258, 2009/10

Journal Articles

Real-time imaging of nitrogen fixation in an intact soybean plant with nodules using $$^{13}$$N-labeled nitrogen gas

Ishii, Satomi; Suzui, Nobuo; Ito, Sayuri; Ishioka, Noriko; Kawachi, Naoki; Otake, Norikuni*; Oyama, Takuji*; Fujimaki, Shu

Soil Science and Plant Nutrition, 55(5), p.660 - 666, 2009/10

 Times Cited Count:12 Percentile:38.66(Plant Sciences)

Journal Articles

Non-invasive imaging of carbon translocation and nitrogen fixation in intact plants using the positron-emitting tracer imaging system

Suzui, Nobuo; Ishii, Satomi; Kawachi, Naoki; Ito, Sayuri; Nakamura, Shinichi*; Ishioka, Noriko; Fujimaki, Shu

Proceedings of 16th International Plant Nutrition Colloquium (IPNC-16) (Internet), P. 1214, 2009/04

70 (Records 1-20 displayed on this page)