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Tropical Journal of Pharmaceutical Research
Official Journal of Pharmacotherpy Group
Home	Pharmacotherapy Group	African Journals Online

Role of biotechnology in medicinal plants

Leena Tripathi^F and Jaindra Nath Tripathi

International Institute of Tropical Agriculture (IITA), Nigeria; ^C/o L. W. Lambourn; Carolyn House, 26 Dingwall Rd, Croydon CR9 3EE, UK

Tropical Journal of Pharmaceutical Research 2003; 2(2): 243-253

Abstract  Full Text

Medicinal plants are the most important source of life saving drugs for the majority of the world’s population. The biotechnological tools are important to select, multiply and conserve the critical genotypes of medicinal plants. In-vitro regeneration holds tremendous potential for the production of high-quality plant-based medicine.

Cryopreservation is long-term conservation method in liquid nitrogen and provides an opportunity for conservation of endangered medicinal plants. In-vitro production of secondary metabolites in plant cell suspension cultures has been reported from various medicinal plants. Bioreactors are the key step towards commercial production of secondary metabolites by plant biotechnology. Genetic transformation may be a powerful tool for enhancing the productivity of novel secondary metabolites; especially by Agrobacterium rhizogenes induced hairy roots. This article discusses the applications of biotechnology for regeneration and genetic transformation for enhancement of secondary metabolite production in-vitro from medicinal plants.

Key words: Bioreactors; genetic transformation; regeneration; secondary metabolites

Abbreviations:  BA: 6-Benzylaminopurine; TDZ: 1-Phenyl-3-(1,2,3-thiadiazol-5-yl) urea; NAA: a-Naphthaleneacetic acid; IAA: Indole-3 acetic acid; 2iP: 6-(g-Dimethylallylamino) purine; 2,4-D: 2,4-Dichlorophenoxyacetic acid; GA3: Gibberellic acid

^*For correspondence: Tel: 234-2-241-2626; Fax: 234-2-241-2221; E-mail: l.tripathi@cgiar.org