Abstract
Transgenic rice plants have been regenerated by somatic embryogenesis from cell suspension derived protoplasts electroporated with plasmid carrying the NPTII gene under the control of the 35S promoter from cauliflower mosaic virus. Heat shock of protoplasts prior to electroporation maximised the throughput of kanamycin resistant colonies. Omission of kanamycin from the medium for plant regeneration was essential for the recovery of transgenic rice plants carrying the NPTII gene. This report of the production of kanamycin resistant transgenic rice plants establishes the use of protoplasts for rice genetic engineering.
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