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Somatic embryogenesis and plant regeneration from leaf derived callus of winged bean [Psophocarpus tetragonolobus (L.) DC.]

Abstract

Somatic embryos were obtained from callus cultures derived from leaf explants of the winged bean, Psophocarpus tetragonolobus (L.) DC. Initiation and development of the somatic embryos occurred with a two-step culture method. Callus cultures initiated on MS medium with NAA and BAP, upon transfer to a new medium with IAA and BAP, produced somatic embryos. Maximum embryogenesis of 60% was obtained on induction medium with 0.5 mg/l NAA plus 1.0 mg/l BAP followed by transfer to a secondary medium with 0.1 mg/l IAA and 2.0 mg/l BAP. Optimal embryo germination and plantlet development was achieved on MS medium with 0.2 mg/l BAP plus 0.1 mg/l IBA. The regenerated plants were successfully transferred to glasshouse conditions.

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Abbreviations

MS:

Murashige and Skoog (1962) medium

2,4-D:

2,4-dichlorophenoxyacetic acid

NAA:

1-naphthaleneacetic acid

IAA:

Indole-3-acetic acid

IBA:

Indole-3-butyric acid

BAP:

6-benzylaminopurine

KN:

Kinetin

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Communicated by G. C. Phillips

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Ahmed, R., Dutta Gupta, S. & De, D.N. Somatic embryogenesis and plant regeneration from leaf derived callus of winged bean [Psophocarpus tetragonolobus (L.) DC.]. Plant Cell Reports 15, 531–535 (1996). https://doi.org/10.1007/BF00232988

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  • DOI: https://doi.org/10.1007/BF00232988

Keywords

  • Somatic Embryo
  • Somatic Embryogenesis
  • Plant Regeneration
  • Culture Method
  • Induction Medium