Transient Expression of Green Fluorescent Protein in Rice Calluses : Optimization of Parameters for Helios Gene Gun Device(Crop Physiology & Ecology)
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概要
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An optimized condition for particle bombardment is necessary for efficient genetic transformation. Parameters for Helios gene gun, the new system for nucleic acid delivery which is mainly consists of hand-held device sold by Bio-Rad Laboratories (California USA), were examined based on transient expression of synthetic green fluorescent protein (sgfp) in rice calluses of indica cv. Fatmawati and japonica cv. Nipponbare In the experimental conditions that we examined, parameters found to be the most favorable conditions for transient expression of sgfp in rice callus cells were as follows : 200-250psi helium pressure, 0.6μm gold partice size, 0.25mg gold particles per shot, and 1.5μg plasmid-DNA per shot. Desiccation of callus cells for eight min was also found appropriate. The level of transient sgfp expression was not significantly influenced by the pre-culture for 4 to 12d before bombardment or by callus age between 10 and 33wk old in Fatmawati. These parameters for this particular device should improve the transient expression, thus enabling stable expression of introduced genes via Helios gene gun using callus as a target tissue.
著者
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Carsono Nono
United Graduate School Of Agricultural Science Tokyo University Of Agriculture And Technology:labora
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Carsono Nono
United Graduate School Of Agricultural Science Tokyo University Of Agriculture And Technology
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Yoshida Tomohiko
Faculty Of Agriculture Kyushu University
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