Abstract

Large numbers of viable protoplasts were isolated from leaf mesophyll tissues and cell suspension cultures of Colt cherry using 1% (w/v) Onozuka R-10, 0.2% (w/v) Macerozyme R-10, 0.1% (w/v) Driselase, 1% (w/v) polyvinylpirrolidone (av. MW 10 000) (PVP-10) and 2% (w/v) Meicelase, 2% (w/v) Rhozyme HP-150 and 0.03% (w/v) Macerozyme R-10. Culture media, based on Murashige and Skoog's (MS) salts, supplemented with 9% (w/v) mannitol and various combinations of α-naphthalene acetic acid (NAA), 6-benzylaminopurine (BAP) and zeatin (Z) promoted cell wall regeneration followed by cell colony and callus formation. Protoplasts of both sources were compared in relation to their cultural requirements. Protoplast-derived callus underwent organogenesis.

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