Quantitative Modeling of Photoassimilate Flow in an Intact Plant Using the Positron Emitting Tracer Imaging System (PETIS) (Plant Nutrition)
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概要
- 論文の詳細を見る
The photoassimilate flow in an intact plant stem was imaged in real-time and its dynamics was quantitatively described using the Positron Emitting Tracer Imaging System (PETIS). Radioactive ^<11>CO_2 was fed to a leaf of an intact broad bean (Vicia faba L.) plant, together with air containing an ambient concentration of non-radioactive carrier CO_2 gas. Movies of flow of the ^<11>C-labeled photoassimilates in the plant body were captured with PETIS. Here we demonstrate that the average flow speeds and the distribution ratios of photoassimilates in the respective nodes and internodes of the observed stem can be estimated by the transfer function analysis, one of the mathematical modeling methods. We also estimated the changes in the spatial distribution of the average flow speeds in the same stem when the fed leaf was exposed to enriched carrier CO_2 gas.
- 社団法人日本土壌肥料学会の論文
著者
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KAWACHI Naoki
Department of Investigative Radiology, Research Institute of National Cardiovascular Center
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Fujimaki Shu
Plant Positron Imaging Group Quantum Beam Science Directorate Japan Atomic Energy Agency
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Kawachi Naoki
Plant Positron Imaging Group Quantum Beam Science Directorate Japan Atomic Energy Agency
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Kawachi Naoki
Department Of Investigative Radiology Research Institute Of National Cardiovascular Center
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Matsuhashi Shinpei
Japan Atomic Energy Agency
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Matsuhashi Shinpei
Department Of Applied Biochemistry Faculty Of Applied Biological Science Hiroshima University:(prese
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Sakamoto Koichi
Plant Positron Imaging Group Radiation-applied Biology Division Quantum Beam Science Directorate Jap
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Fujimaki Shu
Theoretical Analysis Group for Radiation Application, Takasaki Radiation Chemistry Research Establis
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Sakamoto Koichi
Department of Ion-Beam-Applied Biology, Takasaki Radiation Chemistry Research Establishment, Japan A
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Ishioka Noriko
Department of Ion-Beam-Applied Biology, Takasaki Radiation Chemistry Research Establishment, Japan A
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Kume Tamikazu
Department of Ion-Beam-Applied Biology, Takasaki Radiation Chemistry Research Establishment, Japan A
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Kume Tamikazu
Department Of Ion-beam-applied Biology Takasaki Radiation Chemistry Research Establishment Japan Ato
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Ishioka Noriko
Plant Positron Imaging Group Quantum Beam Science Directorate Japan Atomic Energy Agency
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