Micropropagation of Crataeva adansonii D.C. Prodr: an ornamental avenue tree

Methods in Molecular Biology
Purnima TyagiS L Kothari

Abstract

In this chapter, we describe multiplication of the superior and elite tree of Crataeva adansonii using plant tissue culture techniques. An ornamental and avenue tree, it is not available in abundance because of poor seed germination and seedling establishment. It reproduces in nature by root suckers, but that restricts its distribution to very limited areas. Efficient procedures are outlined for plant regeneration through direct shoot bud formation, indirect organogenesis, and somatic embryogenesis through callus formation. Different explants were utilized for separate pathways of regeneration. Murashige and Skoog's (MS) medium containing 3 mg/L BA and 0.05-0.1 mg/L NAA is most effective in direct induction of axillary buds from nodal explants and shoot tips. Adventitious shoots developed from leaves on MS medium containing 3 mg/L BA and 0.1 mg/L NAA. De novo shoots were obtained from the anthers on MS medium supplemented with 3 mg/L BA. Somatic embryos developed on half strength MS medium containing 0.1 mg/L 2, 4-D. Roots were induced at the cut ends of shoots on MS basal medium devoid of growth regulators. The plantlets were then transferred to pots.

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