A novel gene delivery system in plants with calcium alginate micro-beads |
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| Authors: | Sone Takefumi Nagamori Eiji Ikeuchi Tomohiko Mizukami Atsushi Takakura Yukiko Kajiyama Shin'ichiro Fukusaki Ei-Ichiro Harashima Satoshi Kobayashi Akio Fukui Kiichi |
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| Affiliation: | Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan. |
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| Abstract: | We have produced micrometer-sized calcium alginate beads referred to as "bio-beads" that encapsulate plasmid DNA molecules carrying a reporter gene. In order to evaluate the efficiency of the bio-beads in mediating genetic transfection, protoplasts isolated from cultured tobacco cells (BY-2) were transfected with bio-beads containing a plasmid that carries the modified green fluorescent protein gene CaMV35S-sGFP. With the bio-beads treatment, approximately ten-fold higher GFP expression was observed after 24 h incubation compared to that with the conventional method using a naked plasmid solution. Transfection was up to 0.22% efficient. These results indicate that bio-beads have a possibility for efficient transformation in plants. |
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