Development of a Real-time Autoradiography System to Analyze the Movement of the Compounds Labeled with β-ray Emitting Nuclide in a Living Plant

Abstract

Real-time imaging analysis in a living plant allows studying the mechanism of chemical transport or signal transduction more in detail. We present the real-time autoradiography system to analyze the movement of β-ray emitters in a living plant. The system was consisted of a FOS (a fiber optic plate deposited with CsI(Ti) scintillator) and a GaAsP imaging intensifier unit. Though the resolution is about the same as that of an imaging plate(IP), the sensitivity was more than 10 times higher than that of an IP. Using this system, ³²P movement in a young leaf of soybean was analyzed when ³²P was supplied from the root.