Plant regeneration of the Australian native ornamental genus, Pandorea

Abstract

Pandorea jasminoides and P. pandorana are successful Australian endemic ornamental species of the family Bignoniaceae. Vigorous growth and spectacular floral display make them popular landscape plants. Application of tissue culture could facilitate Pandorea breeding and improvement programmes, however, there is no report on in vitro regeneration of the genus Pandorea. A protocol for de novo shoot production is described for commercial cultivars of P. pandorana and P. jasminoides. Amenability of explants under in vitro conditions was found to differ between the two species. Direct shoot organogenesis of P. pandorana was obtained using node explants while seedling (epicotyl) explants of P. jas..