Plant and Cell Physiology Supplement
Supplement to Plant and Cell Physiology Vol. 46
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Real-time images of cadmium transport in intact plants with the Positron Emitting Tracer Imaging System (PETIS)
*Shu FujimakiShin-ichi NakamuraNobuo SuzuiNoriko S. IshiokaMitsuo ChinoShinpei Matsuhashi
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Pages 502

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Abstract
The Positron Emitting Tracer Imaging System (PETIS) is a non-invasive tool to capture movies of distribution of positron-emitting radioactive tracers in an intact plant body. This technique has been employed in studies of transportation of nutrients in living plants. In this study, we focused on cadmium which contamination of crops is an important problem in the world.
Rice (Oryza sativa L.) and oilseed rape (Brassica napus L.) plants were grown for 4 to 5 weeks and 2 to 4 weeks respectively, and used for the experiments. 107Cd (half-life: 6.5 hours) was prepared as the radiotracer, with ion beam bombardment and chemical purification. We fed the tracer into hydroponic culture and carried out the imaging of the base of root and the aerial part of the plants for 11 to 37 hours. In this presentation, we show the first real-time images of cadmium transport in intact plants with PETIS.
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© 2005 by The Japanese Society of Plant Physiologists
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