2024
Development of a compact multiprobe system for monitoring positron-emitting tracers in plant stems. Y. Nagao, N. Suzui, Y.-G. Yin, Y. Miyoshi, Y. Noda, K. Enomoto, M. Tsuda, T. Yabe, H. Watabe, M. Yamaguchi, N. Kawachi. Journal of Instrumentation 19: P04023, 2024 [DOI: 10.1088/1748-0221/19/04/P04023]
Construction and initial performance evaluation of a newly developed plant PET system. S. Yamamoto, H. Watabe, M. Yamaguchi, N. Suzui, N. Kawachi, J. Kataoka. Journal of Instrumentation 19: T04002, 2024 [DOI: 10.1088/1748-0221/19/04/T04002]
A triple-imaging-modality system for simultaneous measurements of prompt gamma photons, prompt x-rays, and induced positrons during proton beam irradiation. S. Yamamoto, H. Watabe, K. Nakanishi, T. Yabe, M. Yamaguchi, N. Kawachi, K. Kamada, A. Yoshikawa, M. Miyake, K. S Tanaka, J. Kataoka. Physics in Medicine & Biology 69: 055012, 2024 [DOI: 10.1088/1361-6560/ad25c6]
A large field-of-view angled panel detector for the development of a plant PET system. S. Yamamoto, H. Watabe, M. Yamaguchi, N. Suzui, N. Kawachi, J. Kataoka. Journal of Instrumentation 19: T01002, 2024 [DOI: 10.1088/1748-0221/19/01/T01002]
Estimating blurless and noise-free Ir-192 source images from gamma camera images for high-dose-rate brachytherapy using a deep-learning approach. K. Nakanishi, S. Yamamoto, T. Yabe, K. Yogo, Y. Noguchi, K. Okudaira, N. Kawachi, J. Kataoka. Biomedical Physics & Engineering Express 10: 015006, 2024 [DOI: 10.1088/2057-1976/ad0bb2]
2023
ADP-glucose pyrophosphorylase genes are differentially regulated in sugar-dependent or –independent manners in tomato (Solanum lycopersicum L.) fruit. Y.-G. Yin, A. Sanuki, Y. Goto, N. Suzui, N. Kawachi, C. Matsukura. Plant Biotechnology, 2023 [DOI: 10.5511/plantbiotechnology.23.1004a]
Optimization of a YAP(Ce) prompt X-ray camera for imaging with spot scanning proton beams at clinical dose levels. S. Yamamoto, T. Yamashita, Y Kobayashi, T. Yabe, T. Akagi, M. Yamaguchi, N. Kawachi, K. Kamada, A. Yoshikawa, J. Kataoka. Journal of Instrumentation 18: T12005, 2023 [DOI: 10.1088/1748-0221/18/12/T12005]
Non-invasive 11C-imaging revealed no change in the dynamics of photosynthates translocation of strawberry in response to increasing daylight integrals under low light conditions. Y. Miyoshi, K. Hidaka, Y.-G. Yin, N. Suzui, K. Kurita, N. Kawachi. Acta Horticulturae, 1381: 89, 2023 [DOI: 10.17660/ActaHortic.2023.1381.12]
Development of DynamicMC for PHITS Monte Carlo package. H. Watabe, T. Sato, K. Ngok Yu, M. Zivkovic, D. Krstic, D. Nikezic, K. Min Kim, T. Yamaya, N. Kawachi, H. Tanaka, A. K. F. Haque, M. R. Islam, M. S. Beni. Radiation Protection Dosimetry, ncad278, 2023 [DOI: 10.1093/rpd/ncad278]
Starch-dependent sodium accumulation in the leaves of Vigna riukiuensis. Y. Noda, A. Hirose, M. Wakazaki, M. Sato, K. Toyooka, N. Kawachi, J. Furukawa, K. Tanoi, K. Naito. Journal of Plant Research 136: 705, 2023 [DOI: 10.1007/s10265-023-01470-8]
Visualization of the initial radiocesium dynamics after penetration in living apple trees with bark removal using a positron-emitting 127Cs tracer. Y. Noda, T. Yoshihara, N. Suzui, Y.-G. Yin, Y. Miyoshi, K. Enomoto, N. Kawachi. Applied Radiation and Isotopes 110859, 2023 [DOI: 10.1016/j.apradiso.2023.110859]
Translocation of 11C-labelled photosynthates to strawberry fruits depends on leaf transpiration during twilight. Y. Miyoshi, J. Mincke, J. Vermeiren, J. Courtyn, C. Vanhove, S. Vandenberghe, N. Kawachi, K. Steppe. Environmental and Experimental Botany 211: 105353, 2023 [DOI: 10.1016/j.envexpbot.2023.105353]
Non-invasive range-shift measurement for therapeutic carbon-ion beams by detecting SEB with a CdTe imager. M. Tsuda, M. Yamaguchi, H. Toyokawa, T. Yabe, Y. Nagao, N. Kawachi, R. Satori, M. Sakai, W. Kada, T. Kamiya. Journal of Instrumentation 18: C04008,2023 [DOI: 10.1088/1748-0221/18/04/C04008]
Simultaneous imaging of prompt gamma photons and prompt X-rays during irradiation of proton beams to human torso phantom at clinical dose level. S. Yamamoto, T. Yamashita, Y Kobayashi, T. Yabe, T. Akagi, M. Yamaguchi, N. Kawachi, K. Kamada, A. Yoshikawa, H. Yokokawa, M. Sagisaka, J. Kataoka. Journal of Instrumentation 18: P07046, 2023 [DOI: 10.1088/1748-0221/18/07/P07046]
Simultaneous imaging of luminescence and prompt X-rays during irradiation with spot-scanning proton beams at clinical dose level. S. Yamamoto, T. Yamashita, Y. Kobayashi, T. Yabe, T. Akagi, M. Yamaguchi, N. Kawachi, K. Kamada, J. Kataoka. Biomedical Physics & Engineering Express 9: 045031, 2023 [DOI: doi.org/10.1088/2057-1976/acdf61]
Hybrid imaging of prompt x-rays and induced positrons using a pinhole gamma camera during and after irradiation of protons. S. Yamamoto, H. Watabe, K. Nakanishi, T. Yabe, M. Yamaguchi, N. Kawachi, K. Kamada, A. Yoshikawa, M. R. Islam, M. Miyake, S. K. Tanaka, J. Kataoka. Physics in Medicine & Biology 68: 115015, 2023 [DOI: 10.1088/1361-6560/acd2a2]
Prompt X-ray imaging during irradiation with spread-out Bragg peak (SOBP) beams of carbon ions. S. Yamamoto, T. Yabe, T. Akagi, M. Yamaguchi, N. Kawachi, K. Kamada, A. Yoshikawa, J. Kataoka. Physica Medica 109: 102592, 2023 [DOI: 10.1016/j.ejmp.2023.102592]
Development of a list-mode data acquisition system for prompt X-ray imaging during irradiation with carbon-ions. S. Yamamoto, T. Yabe, T. Akagi, M. Yamaguchi, N. Kawachi, K. Kamada, A. Yoshikawa, J. Kataoka. Journal of Instrumentation 18: P04025, 2023 [DOI: 10.1088/1748-0221/18/04/P04025]
DynamicMC: An Open-source GUI Program Coupled with MCNP for Modeling Relative Dynamic Movement of Radioactive Source and ORNL Phantom in a 3-dimensional Radiation Field. K. N. Yu, H. Watabe, M. Zivkovic, D. Krstic, D. Nikezic, K. M. Kim, T. Yamaya, N. Kawachi, H. Tanaka, A. K. F. Haque, M. Shahmohammadi Beni. Health Physics 10.1097/HP.0000000000001670, 2023 [DOI: 10.1097/hp.0000000000001670]
Flow filtration/adsorption and simultaneous monitoring technologies of radiocesium 137Cs in river water. K. Enomoto, H. Hoshina, N. Kasai, K. Kurita, Y. Ueki, Y. Nagao, Y.-G. Yin, N. Suzui, N. Kawachi, N. Seko. Chemical Engineering Journal 141696, 2023 [DOI: 10.1016/j.cej.2023.141696]
Evaluation and optimization of geometry parameters of GAGG scintillator-based Compton Camera for medical imaging by Monte Carlo simulation, H. Zarei, S. Razaghi, Y. Nagao, M. Itoh, M. Yamaguchi, N. Kawachi, M.R. Ay, H. Watabe, Journal of Instrumentation 18: P01035, 2023 [DOI: 10.1088/1748-0221/18/01/P01035]
Rice immediately adapts the dynamics of photosynthates translocation to roots in response to changes in soil water environment. Y. Miyoshi, F. Soma, Y.-G. Yin, N. Suzui, Y. Noda, K. Enomoto, Y. Nagao, M. Yamaguchi, N. Kawachi, E. Yoshida, H. Tashima, T. Yamaya, N. Kuya, S. Teramoto, Y. Uga. Frontiers in Plant Science 13: 2023 [DOI: 10.3389/fpls.2022.1024144]
Time-of-flight based neutron background reduction in secondary-electron-bremsstrahlung imaging for in-vivo range verification of proton therapy: a Monte Carlo study. T. Yabe, M. Yamaguchi, M. Tsuda, Y. Nagao, N. Kawachi. Journal of Instrumentation 18: C02041, 2023 [DOI: 10.1088/1748-0221/18/02/C02041]
Simulation study on carbon-ion beam imaging by measuring secondary electron bremsstrahlung using imaging plate. M. Tsuda, M. Yamaguchi, W. Kada, T. Kamiya, M. Sakai, H. Watabe, Y. Nagao, T. Yabe, N. Kawachi. Journal of Instrumentation 18: C01071, 2023 [DOI: 10.1088/1748-0221/18/01/C01071]
2022
The performance study of developed cost-effective Compton Camera based on Ce:GAGG scintillator using experimental measurements and CCMod of GATE simulation module. H. Zarei, Y. Nagao, K. Yamamoto, M. Itoh, M. Yamaguchi, N. Kawachi, H. Watabe. Journal of Instrumentation 17: P10012, 2022 [DOI: 10.1088/1748-0221/17/10/P10012]
Advantages of using larger-diameter pinhole collimator for prompt X-ray imaging during irradiation with carbon ions. S. Yamamoto, T. Yabe, T. Akagi, M. Yamaguchi, N. Kawachi, K. Kamada, A. Yoshikawa, J. Kataoka. Journal of Instrumentation 17: P09006, 2022 [DOI: 10.1088/1748-0221/17/09/P09006]
Diversity of Na+ allocation in salt-tolerant species of the genus Vigna. Y. Noda, R. Sugita, A. Hirose, N. Kawachi, K. Tanoi, J. Furukawa, K. Naito. Breeding Science 72: 326-331, 2022 [DOI: 10.1270/jsbbs.22012]
Characterization of zinc uptake and translocation visualized with positron-emitting 65Zn tracer and analysis of transport-related gene expression in two Lotus japonicus accessions. Y. Noda, J. Furukawa, N. Suzui, Y.-G. Yin, K. Matsuoka, N. Kawachi, S. Satoh. Annals of Botany 130: 799-810, 2022 [DOI: 10.1093/aob/mcac101]
Spatial distributions of cesium and strontium in tea [Camellia sinensis (L.) Kuntze] leaves evaluated by micro-PIXE analysis. A. Terakawa, K. Momokita, Y. Hattori, M. Sato, K. Ishii, M. Koka, N. Yamada, R. Yamagata, Y. Ishii, N. Suzui, T. Satoh, N. Kawachi. International Journal of PIXE 30: 41-47, 2020 [DOI: 10.1142/s0129083520500059]
Deep learning-based in vivo dose verification from proton-induced secondary-electron-bremsstrahlung images with various count level. T. Yabe, M. Yamaguchi, C.-C. Liu, T. Toshito, N. Kawachi, S. Yamamoto. Physica Medica 99: 130-139, 2022 [DOI: 10.1016/j.ejmp.2022.05.013]
Visualization of Particle Ion Beams Using Imaging Plates. M. Tsuda, M. Yamaguchi, R. Satori, W. Kada, T. Kamiya, M. Sakai, Y. Nagao, N. Kawachi. RADIOISOTOPES 71: 109-114, 2022 [DOI: 10.3769/radioisotopes.71.109]
“Live-Autoradiography” Technique Reveals Genetic Variation in the Rate of Fe Uptake by Barley Cultivars. K. Higuchi, K. Kurita, T. Sakai, N. Suzui, M. Sasaki, M. Katori, Y. Wakabayashi, Y. Majima, A. Saito, T. Ohyama, N. Kawachi. Plants 11: 817, 2022 [DOI: 10.3390/plants11060817]
Simulation evaluation on a compact monitor for gamma-emitting tracers in plant stems. M. Yamaguchi, N. Suzui, Y. Nagao, N. Kawachi. Japanese Journal of Applied Physics 61: 027001, 2022 [DOI: 10.35848/1347-4065/ac44b2]
2021
Performance improvement of Compton imaging of astatine-211 by optimising coincidence time windows. Y. Nagao, M. Yamaguchi, S. Watanabe, N. S. Ishioka, N. Kawachi, H. Watabe. Journal of Instrumentation 16: C12031, 2021 [DOI: 10.1088/1748-0221/16/12/C12031]
Plant root PET: visualization of photosynthate translocation to roots in rice plant. Y. Miyoshi, Y. Nagao, M. Yamaguchi, N. Suzui, Y. G. Yin, N. Kawachi, E. Yoshida, S. Takyu, H. Tashima, T. Yamaya, N. Kuya, S. Teramoto, Y. Uga. Journal of Instrumentation 16: C12018, 2021 [DOI: 10.1088/1748-0221/16/12/C12018]
Autoradiography system with phosphor powder (ZnS:Ag) for imaging radioisotope dynamics in a living plant. K. Kurita, T. Sakai, N. Suzui, Y.-G. Yin, R. Sugita, N. I. Kobayashi, K. Tanoi, N. Kawachi. Japanese Journal of Applied Physics 60: 116501, 2021 [DOI: 10.35848/1347-4065/ac2b50]
Non-invasive imaging of hollow structures and gas movement revealed the gas partial pressure gradient-driven long-distance gas movement in the aerenchyma along the leaf blade to submerged organs in rice. Y.-G. Yin, Y. Mori, N. Suzui, K. Kurita, M. Yamaguchi, Y. Miyoshi, Y. Nagao, M. Ashikari, K. Nagai, N. Kawachi. New Phytologist 232: 1974-1984, 2021 [DOI: 10.1111/nph.17726]
Imaging and range estimations of prompt X-rays using YAP(Ce) camera during particle-ion irradiation to phantoms with air cavities. M. Kitano, S. Yamamoto, T. Yabe, T. Akagi, T. Toshito, M. Yamaguchi, N. Kawachi. Journal of Instrumentation 16: P08064, 2021 [DOI: 10.1088/1748-0221/16/08/P08064]
Non-invasive 11C-Imaging Revealed the Spatiotemporal Variability in the Translocation of Photosynthates Into Strawberry Fruits in Response to Increasing Daylight Integrals at Leaf Surface. Y. Miyoshi, K. Hidaka, Y.-G. Yin, N. Suzui, K. Kurita, N. Kawachi. Frontiers in Plant Science 12: 688887, 2021 [DOI: 10.3389/fpls.2021.688887]
New evidence of arsenic translocation and accumulation in Pteris vittata from real-time imaging using positron-emitting 74As tracer. Y. H.-T. Kohda, Z. Qian, M.-F. Chien, K. Miyauchi, G. Endo, N. Suzui, Y.-G. Yin, N. Kawachi, H. Ikeda, H. Watabe, H. Kikunaga, N. Kitajima, C. Inoue. Scientific Reports 11: 12149, 2021 [DOI: 10.1038/s41598-021-91374-1]
Shoot base responds to root-applied glutathione and functions as a critical region to inhibit cadmium translocation from the roots to shoots in oilseed rape (Brassica napus). J.-S. Li, N. Suzui, Y. Nakai, Y.-G. Yin, S. Ishii, S. Fujimaki, N. Kawachi, H. Rai, T. Matsumoto, K. Sato-Izawa, N. Ohkama-Ohtsu, S. Nakamura. Plant Science 305: 110822, 2021 [DOI: 10.1016/j.plantsci.2021.110822]
Measurements of intensity of produced light in water during irradiations of electron beams with energies above and below the Cerenkov-light threshold. S. Yamamoto, Y. Nagao, K. Kurita, M. Yamaguchi, N. Kawachi. Journal of Instrumentation 16: P01007, 2021 [DOI: 10.1088/1748-0221/16/01/P01007]
Estimation of the origins and fractions of emitted light from acrylic block during irradiation of carbon-ions, S. Yamamoto, T. Akagi, M. Yamaguchi, N. Kawachi. Journal of Instrumentation 16: P01004, 2021 [DOI: 10.1088/1748-0221/16/01/P01004]
2020
Non-invasive imaging of radiocesium dynamics in a living animal using a positron-emitting 127Cs tracer. N. Suzui, T. Shibata, Y.-G. Yin, Y. Funaki, K. Kurita, H. Hoshina, M. Yamaguchi, S. Fujimaki, N. Seko, H. Watabe, N. Kawachi. Scientific Reports 10: 16155, 2020 [DOI: 10.1038/s41598-020-73351-2]
AtFLL2, a member of the FLO2 gene family, affects the enlargement of leaves at the vegetative stage and facilitates the regulation of carbon metabolism and flow. N. Sato, M. Kihira, R. Matsushita, C. Kaneko, Y. Ishii, Y.-G. Yin, N. Kawachi, H. Teramura, H. Kusano, H. Shimada. Bioscience, Biotechnology, and Biochemistry 84: 2466-2475, 2020 [DOI: 10.1080/09168451.2020.1812374]
Estimation of shifts of therapeutic carbon-ion beams owing to cavities in a polyethylene target by measuring prompt X-ray images. M. Yamaguchi, S. Yamamoto, M. Kitano, M. Sakai, T. Akagi, Y. Nagao, N. Kawachi. Japanese Journal of Applied Physics 59: 087001, 2020 [DOI: 10.35848/1347-4065/aba22a]
Visualising spatio-temporal distributions of assimilated carbon translocation and release in root systems of leguminous plants. Y.-G. Yin, N. Suzui, K. Kurita, Y. Miyoshi, Y. Unno, S. Fujimaki, T. Nakamura, T. Shinano, N. Kawachi. Scientific Reports 10: 8446, 2020 [DOI: 10.1038/s41598-020-65668-9]
Dose image prediction for range and width verifications from carbon-ion induced secondary electron bremsstrahlung X-rays using deep learning workflow. M. Yamaguchi, C.-C. Liu, H.-M. Huang, T. Yabe, T. Akagi, N. Kawachi, S. Yamamoto. Medical Physics 47: 3520, 2020 [DOI: 10.1002/mp.14205]
Observation of Cerenkov-ring in water during irradiation of high-energy electron or X-ray beam. S. Yamamoto, M. Yamaguchi, K. Okudaira, F. Kawabata, T. Nakaya, N. Kawachi. Radiation Detectors and Their Uses : Proceedings of the Workshop on Radiation Detectors and Their Uses, KEK Proceedings 2020-5, pp. 75-87, 2020.
Crosstalk Reduction Using a Dual Energy Window Scatter Correction in Compton Imaging. M. Sakai, R. K. Parajuli, Y. Kubota, N. Kubo, M. Yamaguchi, Y. Nagao, N. Kawachi, M. Kikuchi, K. Arakawa, M. Tashiro. Sensors 20: 2453, 2020 [DOI: 10.3390/s20092453]
Sensitivity improvement of YAP(Ce) cameras for imaging of secondary electron bremsstrahlung X-rays emitted during carbon-ion irradiation: problem and solution. S. Yamamoto, M. Yamaguchi, T. Akagi, M. Kitano, N. Kawachi. Phys. Med. Biol. 65: 105008, 2020 [DOI: 10.1088/1361-6560/ab7a6e]
Imaging of 99mTc-DMSA and 18F-FDG in humans using a Si/CdTe Compton camera. T. Nakano, M. Sakai, K. Torikai, Y. Suzuki, S. Noda, M. Yamaguchi, S. Takeda, Y. Nagao, M. Kikuchi, H. Odaka, T. Kamiya, N. Kawachi, S. Watanabe, K. Arakawa, T. Takahashi. Physics in Medicine & Biology 65: 05LT01, 2020 [DOI: 10.1088/1361-6560/ab33d8]
A simulation study on estimation of Bragg-peak shifts via machine learning using proton-beam images obtained by measurement of secondary electron bremsstrahlung. M. Yamaguchi, Y. Nagao, N. Kawachi. IEEE Trans. Radiat. Plasma Med. Sci. 4: 253-261, 2020 [DOI: 10.1109/TRPMS.2019.2928016]
Fruit PET: 3-D imaging of carbon distribution in fruit using OpenPET. K. Kurita, Y. Miyoshi, Y. Nagao, M. Yamaguchi, N. Suzui, Y.-G. Yin, S. Ishii, N. Kawachi, K. Hidaka, E. Yoshida, S. Takyu, H. Tashima, T. Yamaya. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 954: 161843, 2020 [DOI: 10.1016/j.nima.2019.01.069]
A novel estimation method of water-equivalent thicknesses of secondary particle tracks using secondary electron bremsstrahlung emitted from therapeutic ion beams for attenuation correction. M. Yamaguchi, M. Sakai, Y. Nagao, M. Kikuchi, K. Arakawa, N. Kawachi. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 954: 161607, 2020 [DOI: 10.1016/j.nima.2018.11.066]
Effects of enhancing endogenous and exogenous glutathione in roots on cadmium movement in Arabidopsis thaliana. S. Nakamura, N. Suzui, Y.-G. Yin, S. Ishii, S. Fujimaki, N. Kawachi, H. Rai, T. Matsumoto, K. Izawa-Sato, N. Ohkama-Ohtsu. Plant Science 290: 110304, 2020 [DOI: 10.1016/j.plantsci.2019.110304]
2019
Towards a deeper integrated multi-omics approach in the root system to develop climate-resilient rice. K. Yoshino, Y. Numajiri, S. Teramoto, N. Kawachi, T. Tanabata, T. Tanaka, T. Hayashi, T. Kawakatsu, Y. Uga. Molecular Breeding 39: 165, 2019 [DOI: 10.1007/s11032-019-1058-4]
Recent Advances in Radioisotope Imaging Technology for Plant Science Research in Japan. N. Suzui, K. Tanoi, J. Furukawa, N. Kawachi. Quantum Beam Science 3: 18, 2019 [DOI: 10.3390/qubs3030018]
Development of a YAP(Ce) camera for the imaging of secondary electron bremsstrahlung x-ray emitted during carbon-ion irradiation toward the use of clinical conditions. S. Yamamoto, M. Yamaguchi, T. Akagi, M. Sasano, N. Kawachi. Physics in Medicine & Biology 64: 135019, 2019 [DOI: 10.1088/1361-6560/ab2072]
On-line rapid purification of [13N]N2 gas for visualization of nitrogen fixation and translocation in nodulated soybean. Y.-G. Yin, S. Ishii, N. Suzui, M. Igura, K. Kurita, Y. Miyoshi, N. Nagasawa, M. Taguchi, N. Kawachi. Applied Radiation and Isotopes 151: 7-12, 2019 [DOI: 10.1016/j.apradiso.2019.05.034]
Elevated glutathione synthesis in leaves contributes to zinc transport from roots to shoots in Arabidopsis. A. Wongkaew, S. Nakamura, N. Suzui, Y.-G. Yin, S. Ishii, N. Kawachi, K. Kojima, H. Sekimoto, T. Yokoyama, N. Ohkama-Ohtsu. Plant Science 283: 416-423, 2019 [DOI: 10.1016/j.plantsci.2018.11.003]
Assessment of gamma radiation from a limited area of forest floor using a cumulative personal dosimeter. T. Yoshihara, K. Kurita, H. Matsumura, V. Yoschenko, N. Kawachi, S. Hashida, A. Konoplev, H. Yoshida. Journal of Environmental Radioactivity 204: 95-103, 2019 [DOI: 10.1016/j.jenvrad.2019.03.023]
A simulation study on reduction of the background component using veto counters for imaging of therapeutic proton beams by measuring secondary electron bremsstrahlung using a parallel-hole collimator. M. Yamaguchi, Y. Nagao, N. Kawachi. Japanese Journal of Applied Physics 58: 021005, 2019 [DOI: 10.7567/1347-4065/aafb00]
Dynamic Analysis of Photosynthate Translocation Into Strawberry Fruits Using Non-invasive 11C-Labeling Supported With Conventional Destructive Measurements Using 13C-Labeling. K. Hidaka, Y. Miyoshi, S. Ishii, N. Suzui, Y.-G. Yin, K. Kurita, K. Nagao, T. Araki, D. Yasutake, M. Kitano, N. Kawachi. Frontiers in Plant Science 9: 1946, 2019 [DOI: 10.3389/fpls.2018.01946]
2018
Development of a cost-effective Compton camera using a positron emission tomography data acquisition system. Y. Nagao, M. Yamaguchi, N. Kawachi, H. Watabe. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 912: 20-23, 2018 [DOI: 10.1016/j.nima.2017.10.009]
Ultracompact Compton camera for innovative gamma-ray imaging. J. Kataoka, A. Kishimoto, T. Taya, S. Mochizuki, L. Tagawa, A. Koide, K. Sueoka, H. Morita, T. Maruhashi, K. Fujieda, T. Kurihara, M. Arimoto, H. Okochi, N. Katsumi, S. Kinno, K. Matsunaga, H. Ikeda, E. Shimosegawa, J. Hatazawa, S. Ohsuka, T. Toshito, M. Kimura, Y. Nagao, M. Yamaguchi, K. Kurita, N. Kawachi. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 912: 1-5, 2018 [DOI: 10.1016/j.nima.2017.09.048]
Effect of number of views on cross-sectional Compton imaging: A fundamental study with backprojection. M. Sakai, R. K. Parajuli, M. Kikuchi, M. Yamaguchi, Y. Nagao, N. Kawachi, K. Arakawa, T. Nakano. Physica Medica 56: 1-9, 2018 [DOI: 10.1016/j.ejmp.2018.11.006]
In vivo simultaneous imaging with 99mTc and 18F using a Compton camera. M. Sakai, M. Yamaguchi, Y. Nagao, N. Kawachi, M. Kikuchi, K. Torikai, T. Kamiya, S. Takeda, S. Watanabe, T. Takahashi, K. Arakawa, T. Nakano. Physics in Medicine and Biology 63: 205006, 2018 [DOI: 10.1088/1361-6560/aae1d1]
Development of an Easy and Simple Method to Measure the Environmental Radioactivity in Trees with Efficient Personal Dosimeters. K. Kurita, M. Yamaguchi, Y. Nagao, N. Suzui, Y.-G. Yin, T. Yoshihara, N. Kawachi. RADIOISOTOPES 67: 427-434, 2018 [DOI: 10.3769/radioisotopes.67.427]
Source of luminescence of water lower energy than the Cerenkov-light threshold during irradiation of carbon-ion. S. Yamamoto, T. Akagi, T. Yamashita, J. Toivonen, M. Yamaguchi, M. Komori, N. Kawachi. Journal of Physics Communications 2: 065010, 2018 [DOI: 10.1088/2399-6528/aaca28]
Astatine-211 imaging by a Compton camera for targeted radiotherapy. Y. Nagao, M. Yamaguchi, S. Watanabe, N. S. Ishioka, N. Kawachi, H. Watabe. Applied Radiation and Isotopes 139: 238-243, 2018 [DOI: 10.1016/j.apradiso.2018.05.022]
Imaging of monochromatic beams by measuring secondary electron bremsstrahlung for carbon-ion therapy using a pinhole x-ray camera. M. Yamaguchi, Y. Nagao, K. Ando, S. Yamamoto, M. Sakai, R. K. Parajuli, K. Arakawa, N. Kawachi. Physics in Medicine & Biology 63: 045016, 2018 [DOI: 10.1088/1361-6560/aaa17c]
Estimation and correction of produced light from prompt gamma photons on luminescence imaging of water for proton therapy dosimetry. T. Yabe, M. Komori, T. Toshito, M. Yamaguchi, N. Kawachi, S. Yamamoto. Physics in Medicine & Biology 63: 04NT02, 2018 [DOI: 10.1088/1361-6560/aaa90c]
2017
Optimization and verification of image reconstruction for a Compton camera towards application as an on-line monitor for particle therapy. T. Taya, J. Kataoka, A. Kishimoto, L. Tagawa, S. Mochizuki, T. Toshito, M. Kimura, Y. Nagao, K. Kurita, M. Yamaguchi, N. Kawachi. Journal of Instrumentation 12: P07015, 2017 [DOI: 10.1088/1748-0221/12/07/P07015]
Development of a low-energy high resolution X-ray camera for high-energy gamma photon background environments. K. Ando, S. Yamamoto, K. Kurita, N. Suzui, Y.-G. Yin, S. Ishii, N. Kawachi. Journal of Nuclear Science and Technology, 54: 933-939, 2017 [DOI: 10.1080/00223131.2017.1323690]
Development of a low-energy x-ray camera for the imaging of secondary electron bremsstrahlung x-ray emitted during proton irradiation for range estimation. K. Ando, M. Yamaguchi, S. Yamamoto, T. Toshito, N. Kawachi. Physics in Medicine and Biology 62: 5006, 2017 [DOI: 10.1088/1361-6560/aa7166]
First demonstration of multi-color 3-D in vivo imaging using ultra-compact Compton camera. A. Kishimoto, J. Kataoka, T. Taya, L. Tagawa, S. Mochizuki, S. Ohsuka, Y. Nagao, K. Kurita, M. Yamaguchi, N. Kawachi, K. Matsunaga, H. Ikeda, E. Shimosegawa, J. Hatazawa. Scientific Reports 7: 2110, 2017 [DOI: 10.1038/s41598-017-02377-w]
Visualization of zinc dynamics in intact plants using positron imaging of commercially available 65Zn. N. Suzui, Y.-G. Yin, S. Ishii, H. Sekimoto, N. Kawachi. Plant Methods 13: 40, 2017 [DOI: 10.1186/s13007-017-0188-0]
Development of a Cherenkov light imaging system for studying the dynamics of radiocesium in plants. K. Kurita, N. Suzui, Y.-G. Yin, S. Ishii, H. Watabe, S. Yamamoto, N. Kawachi. Journal of Nuclear Science and Technology 54: 662-667, 2017 [DOI: 10.1080/00223131.2017.1299051]
Arabidopsis thaliana FLO2 is Involved in Efficiency of Photoassimilate Translocation, Which is Associated with Leaf Growth and Aging, Yield of Seeds and Seed Quality. M. Kihira, K. Taniguchi, C. Kaneko, Y. Ishii, H. Aoki, A. Koyanagi, H. Kusano, N. Suzui, Y.-G. Yin, N. Kawachi, S. Fujimaki, H. Shimada. Plant and Cell Physiology 58: 440-450, 2017 [DOI: 10.1093/pcp/pcw217]
Monte Carlo simulation of photon emission below a few hundred kiloelectronvolts for beam monitoring in carbon ion therapy. M. Yamaguchi, Y. Nagao, T. Satoh, H. Sugai, M. Sakai, K. Arakawa, N. Kawachi. Review of Scientific Instruments 88: 014301, 2017 [DOI: 10.1063/1.4973986]
2016
Detection of a gas region in a human body across a therapeutic carbon beam by measuring low-energy photons. M. Yamaguchi, Y. Nagao, N. Kawachi, T. Satoh, S. Fujimaki, T. Kamiya, K. Torikai, H. Shimada, H. Sugai, M. Sakai, K. Arakawa, T. Nakano. International Journal of PIXE 26: 61-72, 2016 [DOI: 10.1142/s0129083516500078]
Measurement of environmental radioactivity using a cumulative gamma radiation dosimeter: Fertilization-induced changes in young fruit trees, T. Yoshihara, A. Kominato, Y. Nagao, N. Kawachi, S-N. Hashida, N. Suzui, Y.-G. Yin, S. Fujimaki, Proc. ENVIRA2015; 134-137, 2016
Application of glutathione and dithiothreitol to oil seed rape (Brassica napus L.) roots affects cadmium distribution in roots and inhibits Cd translocation to shoots, S. Nakamura, N. Suzui, S. I.-Tanabata, S. Ishii, N. Kawachi, H. Rai, H. Hattori, S. Fujimaki, Soil Sci. Plant Nutr., 62: 379-385, 2016 [DOI: 10.1080/00380768.2016.1188025]
Secondary-electron-bremsstrahlung imaging for proton therapy, M. Yamaguchi, Y. Nagao, K. Ando, S. Yamamoto, T. Toshito, J. Kataoka, N. Kawachi, Nucl. Instrum. Method. Phys. Res. A, 833: 199-207, 2016 [DOI: 10.1016/j.nima.2016.07.034]
Corrigendum: Beam range estimation by measuring bremsstrahlung (2012 Phys. Med. Biol. 57 2843), M. Yamaguchi, K. Torikai, N. Kawachi, H. Shimada, T. Satoh, Y. Nagao, S. Fujimaki, M. Kokubun, S. Watanabe, T. Takahashi, K. Arakawa, T. Kamiya, T. Nakano, Phys. Med. Biol., 61: 3638–3644, 2016 [DOI: 10.1088/0031-9155/61/9/3638]
Kinetic Analysis of Zinc/Cadmium Reciprocal Competitions Suggests a Possible Zn-Insensitive Pathway for Root-to-Shoot Cadmium Translocation in Rice, L. Fontanili, C. Lancilli, N. Suzui, B. Dendena, Y.-G. Yin, A. Ferri, S. Ishii, N. Kawachi, G. Lucchini, S. Fujimaki, G. A Sacchi, F. Nocito, Rice, 9: 16, 2016 [DOI: 10.1186/s12284-016-0088-3]
Imaging of radiocesium uptake dynamics in a plant body using a newly developed high-resolution gamma camera, N. Kawachi, Y.-G. Yin, N. Suzui, S. Ishii, T. Yoshihara, H. Watabe, S. Yamamoto, S. Fujimaki, J. Environ. Radioact., 151: 461-467, 2016 [DOI: 10.1016/j.jenvrad.2015.04.009]
2015
Effects of Glutathione Concentration in the Root Zone and Glutathione Treatment Period on Cadmium Partitioning in Oilseed Rape Plants, S. Nakamura, H. Kondo, N. Suzui, Y.-G. Yin, S. Ishii, N. Kawachi, H. Rai, H. Hattori, S. Fujimaki. Molecular Physiology and Ecophysiology of Sulfur, 253-259: 2015 [DOI: 10.1007/978-3-319-20137-5_28]
Common reed accumulates starch in its stem by metabolic adaptation under Cd stress conditions, K. Higuchi, M. Kanai, M. Tsuchiya, H. Ishii, N. Shibuya, N. Fujita, Y. Nakamura, N. Suzui, S. Fujimaki, E. Miwa, Front. Plant Sci., 6: 138, 2015 [DOI: 10.3389/fpls.2015.00138]
Route and regulation of zinc, cadmium, and iron transport in rice plants (Oryza sativa L.) during vegetative growth and grain filling; Metal transporters, metal speciation, grain Cd reduction and Zn and Fe biofortification, T. Yoneyama, S. Ishikawa, S. Fujimaki. International Journal of Molecular Sciences, 16: 19111, 2015 [DOI: 10.3390/ijms160819111]
Base to tip and long-distance transport of sodium in the root of common reed (Phragmites australis (Cav.) trin. ex steud.) at steady state under constant high-salt conditions, S. Fujimaki, T. Maruyama, N. Suzui, N. Kawachi, E. Miwa, K. Higuchi, Plant Cell Physiol., 56: 943-950, 2015 [DOI: 10.1093/pcp/pcv021]
Live-imaging evaluation of the efifcacy of elevated CO2 concentration in a closed cultivation system for the improvement of bioproduction in tomato fruits, H. Yamazaki, N. Suzui, Y.- G. Yin, N. Kawachi, S. Ishii, H. Shimada, S. Fujimaki, Plant Biotechnol., 32: 31-37, 2015 [DOI: 10.5511/plantbiotechnology.14.1210a]
Monitoring of positron using high-energy gamma camera for proton therapy, S. Yamamoto, T. Toshito, M. Komori, Y. Morishita, S. Okumura, M. Yamaguchi, Y. Saito, N. Kawachi, S. Fujimaki, Ann. Nucl. Med., 29: 268-275, 2015 [DOI: 10.1007/s12149-014-0936-4]
Ultra-High resolution of radiocesium distribution detection based on Cherenkov light imaging. S. Yamamoto, Y. Ogata, N. Kawachi, N. Suzui, Y.-G. Yin, S. Fujimaki. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 777: 102-109, 2015 [DOI: 10.1016/j.nima.2014.12.090]
2014
From Laboratory to Field: OsNRAMP5-Knockdown Rice Is a Promising Candidate for Cd Phytoremediation in Paddy Fields. R. Takahashi, Y. Ishimaru, H. Shimo, K. Bashir, T. Senoura, K. Sugimoto, K. Ono, N. Suzui, N. Kawachi, S. Ishii, Y.-G. Yin, S. Fujimaki, M. Yano, N. K. Nishizawa, H. Nakanishi. PLoS ONE 9: e98816, 2014 [DOI: 10.1371/journal.pone.0098816]
Three-layer GSO depth-of-interaction detector for high-energy gamma camera. S. Yamamoto, H. Watabe, N. Kawachi, S. Fujimaki, K. Kato, J. Hatazawa. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 743: 124-129, 2014 [DOI: 10.1016/j.nima.2014.01.011]
A kinetic analysis of cadmium accumulation in a Cd Hyper-accumulator Fern, Athyrium Yokoscense and tobacco plants. T. Yoshihara, N. Suzui, S. Ishii, M. Kitazaki, H. Yamazaki, K. Kitazaki, N. Kawachi, Y.-G. Yin, S. Ito-Tanabata, S.-N. Hashida, K. Shoji, H. Shimada, F. Goto, S. Fujimaki. Plant, Cell & Environment 37: 1086-1096, 2014 [DOI: 10.1111/pce.12217]
2013
Quantitative analysis of the initial transport of fixed nitrogen in nodulated soybean plants using 15N as a tracer. N. Van Phi Hung, S. Watanabe, S. Ishikawa, N. Ohtake, K. Sueyoshi, T. Sato, S. Ishii, S. Fujimaki, T. Ohyama. Soil Science and Plant Nutrition 59: 888-895, 2013 [DOI:10.1080/00380768.2013.838742]
Nitrate facilitates cadmium uptake, transport and accumulation in the hyperaccumulator Sedum plumbizincicola. P. Hu, Y.-G. Yin, S. Ishikawa, N. Suzui, N. Kawachi, S. Fujimaki, M. Igura, C. Yuan, J. Huang, Z. Li, T. Makino, Y. Luo, P. Christie, L. Wu. Environmental Science and Pollution Research 20: 6306-6316, 2013 [DOI: 10.1007/s11356-013-1680-3]
Application of glutathione to roots selectively inhibits cadmium transport from roots to shoots in oilseed rape. S. Nakamura, N. Suzui, T. Nagasaka, F. Komatsu, N.S. Ishioka, S. Ito-Tanabata, N. Kawachi, H. Rai, H. Hattori, M. Chino, S. Fujimaki. Journal of Experimental Botany 64: 1073-1081, 2013 [DOI: 10.1093/jxb/ers388]
2012
Beam range estimation by measuring bremsstrahlung. M. Yamaguchi, K. Torikai, N. Kawachi, H. Shimada, T. Satoh, Y. Nagao, S. Fujimaki, M. Kokubun, S. Watanabe, T. Takahashi, K. Arakawa, T. Kamiya, T. Nakano. Physics in Medicine and Biology 57: 2843, 2012 [DOI: 10.1088/0031-9155/57/10/2843]
2011
Real-time imaging and analysis of differences in cadmium dynamics in rice cultivars (Oryza sativa) using positron-emitting107Cd tracer. S. Ishikawa, N. Suzui, S. Ito-Tanabata, S. Ishii, M. Igura, T. Abe, M. Kuramata, N. Kawachi, S. Fujimaki. BMC Plant Biology 11: 172, 2011 [DOI: 10.1186/1471-2229-11-172]
A quick incorporation of 13N into the soluble high-molecular compound in rice (Oryza sativa L.) roots by application of 13N-labeled nitrate/nitrite, T. Yoneyama, N. Suzui, N.S. Ishioka, S. Fujimaki. Soil Sci. Plant Nutr., 57, 279-282, 2011 [DOI: 10.1080/00380768.2011.576399]
Imaging of Carbon Translocation to Fruit Using Carbon-11-Labeled Carbon Dioxide and Positron Emission Tomography, N. Kawachi, K. Kikuchi, N. Suzui, S. Ishii, S. Fujimaki, N.S. Ishioka, H. Watabe, IEEE Trans. Nucl. Sci. 58: 395-399, 2011 [DOI: 10.1109/TNS.2011.2113192]
Development of head module for multi-head Si/CdTe Compton camera for medical applications, M. Yamaguchi, N. Kawachi, N. Suzui, S. Fujimaki, T. Kamiya, H. Odaka, S. Ishikawa, M. Kokubun, S. Watanabe, T. Takahashi, H. Shimada, K. Arakawa, Y. Suzuki, K. Torikai, Y. Yoshida, T. Nakano. Nucl. Instrum. Methods Phys. Res. A 648: S2-S7, 2011 [DOI: 10.1016/j.nima.2011.02.040]
Real-time whole-plant imaging of 11C translocation using positron-emitting tracer imaging, N. Kawachi, N. Suzui, S. Ishii, S. Ito, N.S. Ishioka, H. Yamazaki, A. H. Iwasaki, K. Ogawa, S. Fujimaki, Nucl. Instrum. Methods Phys. Res. A 648: S317-S320, 2011 [DOI: 10.1016/j.nima.2010.10.152]
2010
Tracing cadmium from culture to spikelet: non-invasive imaging and quantitative characterization of absorption, transport and accumulation of cadmium in an intact rice plant, S. Fujimaki, N. Suzui, N.S. Ishioka, N. Kawachi, S. Ito, M. Chino, S. Nakamura. Plant Physiology 152: 1796-1806, 2010 [DOI: 10.1104/pp.109.151035]
S. Ito, S. Fujimaki, T. Kato, N. Ohtake, K. Sueyoshi, T. Ohyama (2010) Regulation of root nodule formation in leguminous plants. In: Ohyama T, Sueyoshi K (eds) Nitrogen Assimilation in Plants. Research Signpost, Kerala, India
S. Fujimaki, S. Ishii, N.S. Ishioka (2010) Non-invasive imaging and analyses of transport of nitrogen nutrition in intact plants using a positron-emitting tracer imaging system (PETIS). In: Ohyama T, Sueyoshi K (eds) Nitrogen Assimilation in Plants. Research Signpost, Kerala, India
2009
Real-time imaging of nitrogen fixation in an intact soybean plant with nodules using 13N-labeled nitrogen gas. S. Ishii, N. Suzui, S. Ito, N. S. Ishioka, N. Kawachi, N. Ohtake, T. Ohyama and S. Fujimaki. Soil Science and Plant Nutrition 55: 660-666, 2009 [DOI: 10.1111/j.1747-0765.2009.00403.x]
Production of no-carrier-added 64Cu and applications to molecular imaging by PET and PETIS as a biomedical tracer. S. Watanabe, Y. Iida, N. Suzui, T. Katabuchi, S. Ishii, N. Kawachi, H. Hanaoka, S. Watanabe, S. Matsuhashi, K. Endo, N. Ishioka. Journal of Radioanalytical and Nuclear Chemistry 280: 199-205, 2009 [DOI: 10.1007/s10967-008-7443-9]
Experimental results of the gamma-ray imaging capability with a Si/CdTe semiconductor Compton camera. S. Takeda, H. Aono, S. Okuyama, S. Ishikawa, H. Odaka, S. Watanabe, M. Kokubun, T. Takahashi, K. Nakazawa, H. Tajima, N. Kawachi. IEEE Transaction on Nuclear Science 56: 783-790, 2009 [DOI: 10.1109/TNS.2008.2012059]
52Fe translocation in barley as monitored by a positron-emitting tracer imaging system (PETIS): evidence for the direct translocation of Fe from roots to young leaves via phloem. T. Tsukamoto, H. Nakanishi, H. Uchida, S. Watanabe, S. Matsuhashi, S. Mori, N. K. Nishizawa. Plant Cell Physiol 50: 48-57, 2009 [DOI: 10.1093/pcp/pcn192]
2008
Deoxymugineic acid increases Zn translocation in Zn-deficient rice plants. M. Suzuki, T. Tsukamoto, H. Inoue, S. Watanabe, S. Matsuhashi, M. Takahashi, H. Nakanishi, S. Mori, N. K. Nishizawa. Plant Molecular Biology 66: 609-617, 2008 [DOI: 10.1007/s11103-008-9292-x]
Use of positron-emitting tracer imaging system for measuring the effect of salinity on temporal and spatial distribution of 11C tracer and coupling between source and sink organs. R. Suwa, S. Fujimaki, N. Suzui, N. Kawachi, S. Ishii, K. Sakamoto, N. T. Nguyen, H. Saneoka, P. K. Mohapatra, R. E. Moghaieb. Plant Science 175: 210-216, 2008 [DOI: 10.1016/j.plantsci.2008.03.022]
Real-time analysis of photoassimilate translocation in intact eggplant fruit using 11CO2 and a positron-emitting tracer Imaging system. K. Kikuchi, S. Ishii, S. Fujimaki, N. Suzui, H. Matsuhashi, I. Honda, Y. Shishido, N. Kawachi. Journal of the Japanese Society for Horticultural Science 77: 199-205, 2008 [DOI: 10.2503/jjshs1.77.199]
Analysis of NO3 interception of the parasitic angiosperm Orobanche spp. using a positron-emitting tracer imaging system and 13NO3-: A new method for the visualization and quantitative analysis of the NO3 interception ratio. N. Kawachi, S. Fujimaki, K. Sakamoto, N. S. Ishioka, S. Matsuhashi, H. Sekimoto. Soil Science and Plant Nutrition 54: 408-416, 2008 [DOI:10.1111/j.1747-0765.2008.00252.x]
2007
Mutational reconstructed ferric chelate reductase confers enhanced tolerance in rice to iron deficiency in calcareous soil. Y. Ishimaru, S. Kim, T. Tsukamoto, H. Oki, T. Kobayashi, S. Watanabe, S. Matsuhashi, M. Takahashi, H. Nakanishi, S. Mori, N. K. Nishizawa. Proceedings of the National Academy of Sciences of the United States of America 104: 7373-7378, 2007 [DOI: 10.1073/pnas.0610555104]
The Positron Emitting Tracer Imaging System (PETIS), a Most-advanced Imaging Tool for Plant Physiology. S. Fujimaki. ITE LETTERS ON BATTERIES NEW TECHNOLOGIES AND MEDICINE 8: 404-413, 2007
2006
52Mn translocation in barley monitored using a positron-emitting tracer imaging system. T. Tsukamoto, H. Nakanishi, S. Kiyomiya, S. Watanabe, S. Matsuhashi, N. K. Nishizawa, S. Mori. Soil Science and Plant Nutrition 52: 717-725, 2006 [DOI: 10.1111/j.1747-0765.2006.00096.x]
Biosynthesis and secretion of mugineic acid family phytosiderophores in zinc-deficient barley. M. Suzuki, M. Takahashi, T. Tsukamoto, S. Watanabe, S. Matsuhashi, J. Yazaki, N. Kishimoto, S. Kikuchi, H. Nakanishi, S. Mori, N. K. Nishizawa. Plant Journal 48: 85-97, 2006 [DOI: 10.1111/j.1365-313X.2006.02853.x]
A new visualization technique for the study of the accumulation of photoassimilates in wheat grains using [11C]CO2. S. Matsuhashi, S. Fujimaki, H. Uchida, N. S. Ishioka, T. Kume. Applied Radiation and Isotopes 64: 435-440, 2006 [DOI: 10.1016/j.apradiso.2005.08.020]
Kinetic analysis of carbon-11-labeled carbon dioxide for studying photosynthesis in a leaf using positron emitting tracer imaging system. N. Kawachi, K. Sakamoto, S. Ishii, S. Fujimaki, N. Suzui, N. S. Ishioka, S. Matsuhashi. Ieee Transactions on Nuclear Science 53: 2991-2997, 2006 [DOI: 10.1109/TNS.2006.881063]
Rice plants take up iron as an Fe3+-phytosiderophore and as Fe2+. Y. Ishimaru, M. Suzuki, T. Tsukamoto, K. Suzuki, M. Nakazono, T. Kobayashi, Y. Wada, S. Watanabe, S. Matsuhashi, M. Takahashi, H. Nakanishi, S. Mori, N. K. Nishizawa. Plant Journal 45: 335-346, 2006 [DOI: 10.1111/j.1365-313X.2005.02624.x]
2005
Quantitative modeling of photoassimilate flow in an intact plant using the Positron Emitting Tracer Imaging System (PETIS). S. Matsuhashi, S. Fujimaki, N. Kawachi, K. Sakamoto, N. S. Ishioka, T. Kume. Soil Science and Plant Nutrition 51: 417-423, 2005 [DOI: 10.1111/j.1747-0765.2005.tb00047.x]
Input-output analysis of in vivo photoassimilate translocation using Positron-Emitting Tracer Imaging System (PETIS) data. A. J. Keutgen, N. Keutgen, S. Matsuhashi, C. Mizuniwa, T. Ito, T. Fujimura, N. S. Ishioka, S. Watanabe, A. Osa, T. Sekine, H. Uchida, A. Tsuji, S. Hashimoto. Journal of Experimental Botany 56: 1419-1425, 2005 [DOI: 10.1093/jxb/eri143]
2003
Quick and reversible inhibition of soybean root nodule growth by nitrate involves a decrease in sucrose supply to nodules. H. Fujikake, A. Yamazaki, N. Ohtake, K. Sueyoshi, S. Matsuhashi, T. Ito, C. Mizuniwa, T. Kume, S. Hashimoto, N. S. Ishioka, S. Watanabe, A. Osa, T. Sekine, H. Uchida, A. Tsuji, T. Ohyama. Journal of Experimental Botany 54: 1379-1388, 2003 [DOI: 10.1093/jxb/erg147]
2002
Transfer function analysis of positron-emitting tracer imaging system (PETIS) data. N. Keutgen, S. Matsuhashi, C. Mizuniwa, T. Ito, T. Fujimura, N. S. Ishioka, S. Watanabe, T. Sekine, H. Uchida, S. Hashimoto. Applied Radiation and Isotopes 57: 225-233, 2002 [DOI: 10.1016/S0969-8043(02)00077-5]
Effects of anion channel blockers on xylem nitrate transport in barley seedlings. T. Kawachi, C. Nishijo, H. Fujikake, S. Abdel-Latif, N. Ohtake, K. Sueyoshi, T. Ohyama, N. Shigeta-Ishioka, S. Watanabe, A. Osa, T. Sekine, S. Matsuhashi, T. Ito, C. Mizuniwa, T. Kume, S. Hashimoto, H. Uchida, A. Tsuji. Soil Science and Plant Nutrition 48: 271-277, 2002 [DOI: 10.1080/00380768.2002.10409200]
2001
Effect of radiation-degraded chitosan on plants stressed with vanadium. L. Xuan Tham, N. Nagasawa, S. Matsuhashi, N. S. Ishioka, T. Ito, T. Kume. Radiation Physics and Chemistry 61: 171-175, 2001 [DOI: 10.1016/S0969-806X(00)00388-1]
Production of positron emitters of metallic elements to study plant uptake and distribution. S. Watanabe, N. S. Ishioka, A. Ose, M. Koizumi, T. Sekine, S. Kiyomiya, H. Nakanishi, S. Mori. Radiochimica Acta 89: 853-858, 2001
Rapid N transport to pods and seeds in N-deficient soybean plants. N. Ohtake, T. Sato, H. Fujikake, K. Sueyoshi, T. Ohyama, N. S. Ishioka, S. Watanabe, A. Osa, T. Sekine, S. Matsuhashi, T. Ito, C. Mizuniwa, T. Kume, S. Hashimoto, H. Uchida, A. Tsuji. Journal of Experimental Botany 52: 277-283, 2001 [DOI: 10.1093/jexbot/52.355.277]
18F used as tracer to study water uptake and transport imaging of a cowpea plant. T. M. Nakanishi, K. Tanoi, H. Yokota, D. J. Kang, R. Ishii, N. S. Ishioka, S. Watanabe, A. Osa, T. Sekine, S. Matsuhashi, T. Ito, T. Kume, H. Uchida, A. Tsuji. Journal of Radioanalytical and Nuclear Chemistry 249: 503-507, 2001 [DOI: 10.1023/A:1013217425209]
Real time visualization of 13N-translocation in rice under different environmental conditions using positron emitting tracer imaging system. S. Kiyomiya, H. Nakanishi, H. Uchida, A. Tsuji, S. Nishiyama, M. Futatsubashi, H. Tsukada, N. S. Ishioka, S. Watanabe, T. Ito, C. Mizuniwa, A. Osa, S. Matsuhashi, S. Hashimoto, T. Sekine, S. Mori. Plant Physiology 125: 1743-1753, 2001 [DOI: 10.1104/pp.125.4.1743]
Light activates H215O flow in rice: Detailed monitoring using a positron-emitting tracer imaging system (PETIS). S. Kiyomiya, H. Nakanishi, H. Uchida, S. Nishiyama, H. Tsukada, N. S. Ishioka, S. Watanabe, A. Osa, C. Mizuniwa, T. Ito, S. Matsuhashi, S. Hashimoto, T. Sekine, A. Tsuji, S. Mori. Physiologia Plantarum 113: 359-367, 2001 [DOI: 10.1034/j.1399-3054.2001.1130309.x]
Ion chromatographic analysis of selected free amino acids and cations to investigate the change of nitrogen metabolism by herbicide stress in soybean (Glycine max). M. H. Jia, N. Keutgen, S. Matsuhashi, C. Mitzuniwa, T. Ito, T. Fujimura, S. Hashimoto. Journal of Agricultural and Food Chemistry 49: 276-280, 2001 [DOI: 10.1021/jf990344c]
Vanadium uptake and an effect of vanadium treatment on 18F-labeled water movement in a cowpea plant by positron emitting tracer imaging system (PETIS). J. Furukawa, H. Yokota, K. Tanoi, S. Ueoka, S. Matsuhashi, N. S. Ishioka, S. Watanabe, H. Uchida, A. Tsuji, T. Ito, T. Mizuniwa, A. Osa, T. Sekine, S. Hashimoto, T. M. Nakanishi. Journal of Radioanalytical and Nuclear Chemistry 249: 495-498, 2001 [DOI: 10.1023/A:1013276224300]
Real-time [11C]methionine translocation in barley in relation to mugineic acid phytosiderophore biosynthesis. N. Bughio, H. Nakanishi, S. Kiyomiya, S. Matsuhashi, N. S. Ishioka, S. Watanabe, H. Uchida, A. Tsuji, A. Osa, T. Kume, S. Hashimoto, T. Sekine, S. Mori. Planta 213: 708-715, 2001 [DOI: 10.1007/s004250100552]
2000
Visualization of 15O-water flow in tomato and rice in the light and dark using a positron-emitting tracer imaging system (PETIS). S. Mori, S. Kiyomiya, H. Nakanishi, N. S. Ishioka, S. Watanabe, A. Osa, S. Matsuhashi, S. Hashimoto, T. Sekine, H. Uchida, S. Nishiyama, H. Tsukada, A. Tsuji. Soil Science and Plant Nutrition 46: 975-979, 2000 [DOI: 10.1080/00380768.2000.10409163]
1999
Analysis of nitrate absorption and transport in non-nodulated and nodulated soybean plants with 13NO3-and 15NO3-. T. Sato, N. Ohtake, T. Ohyama, N. S. Ishioka, S. Watanabe, A. Osa, T. Sekine, H. Uchida, A. Tsuji, S. Matsuhashi. Radioisotopes 48: 450-458, 1999 [DOI: 10.3769/radioisotopes.48.450]
Visualizing real time [11C]methionine translocation in Fe-sufficient and Fe-deficient barley using a Positron Emitting Tracer Imaging System (PETIS). H. Nakanishi, N. Bughio, S. Matsuhashi, N. S. Ishioka, H. Uchida, A. Tsuji, A. Osa, T. Sekine, T. Kume, S. Mori. Journal of Experimental Botany 50: 637-643, 1999 [DOI: 10.1093/jxb/50.334.637]
13N-nitrate uptake sites and rhizobium-infectible region in a single root of common bean and soybean. H. Matsunami, Y. Arima, K. Watanabe, N. S. Ishioka, S. Watanabe, A. Osa, T. Sekine, H. Uchida, A. Tsuji, S. Matsuhashi, T. Itoh, T. Kume. Soil Science and Plant Nutrition 45: 955-962, 1999 [DOI: 10.1080/00380768.1999.10414345]
1998
N. S. Ishioka, T. Sekine, H. Matsuoka, S. Watanabe, A. Osa, M. Koizumi, T. Kume, S. Matsuhashi, T. Fujimura, H. Uchida, A. Tsuji, L. X. Tham, V. H. Dang. Application of positron emitters to studies on plants. Proc. of 1997 Workshop on the Utilization of Research Reactors; 349, 1998