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Visualization of 15O-water flow in tomato and rice in the light and dark using a positron-emitting tracer imaging system (PETIS) |
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| Authors: | Satoshi Mori Shoichiro Kiyomiya Hiromi Nakanishi Noriko S Ishioka Satoshi Watanabe Akihiko Osa |
| Institution: | 1. Department of Applied Biological Chemistry , The University of Tokyo , Bunkyo-ku, Tokyo , 113-8657 , Japan;2. Core Research for Evolutional Science and Technology Japan Science and Technology Corporation , Tsukuba , 305-0047 , Japan;3. Department of Applied Biological Chemistry , The University of Tokyo , Bunkyo-ku, Tokyo , 113-8657 , Japan;4. Takasaki Radiation Chemistry Research Establishment , Japan A tomic Energy Research Institute , Takasaki , 370-1207 , Japan |
| Abstract: | Abstract 15P-water flow from the roots to the top in tomato (Lycopersicon esculentum Mill.) and rice (Oryza sativa L.) plants was visualized with time using a positron-emitting tracer imaging system (PETIS). The 15O-water flow was switched on by light and completely stopped in the dark. The flow rate in the stem of tomato and the shoot of rice at a light intensity of 500 μmol·m?2·s?1 was 1.9 and 0.4 cm min?1, respectively. |
| Keywords: | Lycopersicon esculentum Oryza sativa 15O-water flow PETIS visualization |