Volume 41, Number 3, 277-279, DOI: 10.1007/BF00045092

Embryogenic protoplast cultures of orange jessamine (Murraya paniculata) and their regeneration into plants flowering in vitro

Hasan Basri Jumin and Nobumasa Nito

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Abstract

Embryogenic callus was induced from the hypocotyl region of seedlings germinated from immature embryos of orange jessamine (Murraya paniculata (L.) Jack) on Murashige & Tucker (1969) medium containing 50 g l-1 sucrose, 5.0 mg l-1 benzyladenine, 2.5 mg l-1 2,4-dichlorophenoxyacetic acid and 600 mg l-1 malt extract. Isolated protoplasts divided to produce callus on Murashige & Tucker (1969) medium containing 50 g l-1 sucrose, 0.01 mg l-1 gibberellin A4+7 and 600 mg l-1 malt extract. Callus developed to plantlets via somatic embryogenesis on Murashige & Tucker (1969) medium with 50 g l-1 lactose but no plant growth regulators. These plantlets flowered in vitro on half strength Murashige & Tucker (1969) medium containing 50 g l-1 sucrose after 2 months culture.

Key words  floral bud formation - orange jessamine - plating efficiency - precocious flowering

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