Abstract
Plants were regenerated from mature zygotic embryos of sandalwood (Santalum album L.) through direct somatic embryogenesis. Somatic embryos were formed directly without any intervening callus phase on zygotic embryos plated on Murashige and Skoog (MS) medium containing thidiazuron or benzylaminopurine. Individual somatic embryos were then isolated and transferred to MS medium without cytokinin on which they formed secondary embryos in repetitive cycles with or without the addition of indole acetic acid to the medium. Conversion of somatic embryos into plantlets was achieved by isolating somatic embryos with distinct cotyledons and reculturing them onto half-strength MS medium with GA3 (1.4 μM). Recovered plantlets were acclimatised and grown in the greenhouse. This is the first report on in vitro regeneration via direct somatic embryogenesis of sandalwood.
Similar content being viewed by others
References
Arrillaga I, Tobolski J & Merkle SA (1994) Advances in somatic embryogenesis and plant production of black locust (Robinia pseudoacacia L.). Plant Cell Rep. 13: 171–175
Bapat VA & Rao PS (1979) Somatic embryogenesis and plantlet formation in tissue cultures of sandalwood (Santalum album L.). Ann. Bot. 44: 629–630
Cuenca B, San-Jose MC, Martinez MT, Ballester A & Vieitez A (1999) Somatic embryogenesis from stem and leaf explants of Quercus robur L. Plant Cell Rep. 18: 538–543
Dunstan DI, Tautorus TE & Thorpe TA (1995) Somatic embryogenesis in woody plants. In: Thorpe TA (ed) In Vitro Embryogenesis in Plants (pp 471–537). Kluwer Academic Publishers, Dordrecht, The Netherlands
Ellis DD, Barczynska H & McCown BH (1991) A comparison of BA, zeatin and thidiazuron for adventitious bud formation from Picea glauca embryos and epicotyl explants. Plant Cell Tiss. Org. Cult. 27: 281–287
Gharyal PK & Maheshwari SC (1981) In vitro differentiation of somatic embryoids in a leguminous tree - Albizzia lebbeck L. Naturewissenschaften 68: 379–380
Huetteman CA & Preece JE (1993) Thidiazuron: a potent cytokinin for woody plant tissue culture. Plant Cell Tiss. Org. Cult. 33: 105–119
Lakshmi Sita G, Raghava Ram NV & Vaidyanathan CS (1979) Differentiation of embryoids and plantlets from shoot callus of sandalwood. Plant Sci. Lett. 15: 265–270
Lakshimi Sita G, Raghava Ram NV & Vaidyanathan CS (1980) Triploid plantlets from endosperm culture of sandalwood by experimental embryogenesis. Plant Sci. Lett. 20: 63–69
Merkle SA (1995) Strategies for dealing with limitations of somatic embryogenesis in hardwood trees. Plant Tiss. Cult. Biotechnol. 1: 112–121
Murashige T & Skoog F (1962) A revised medium for rapid growth and bioassay with tobacco tissue cultures. Physiol. Plant. 15: 473–497
Murthy BNS, Murch SJ & Saxena PK (1998) Thidiazuron: a potent regulator of in vitro plant morphogenesis. In Vitro Cell Dev. Biol. Plant 34: 267–275
Murthy BNS & Saxena PK (1999) Somatic embryogenesis and plantregeneration of neem (Azadirchta indica A. Juss). Plant Cell Rep. 17: 469–475
Rao PS & Bapat VA (1992) Micropropagation of sandalwood (Santalum album L.). In: Bajaj YPS (ed) Biotechnology in Agriculture and Forestry 18. High-Tech and Micropropagation II (pp 193–210). Springer Verlag, Berlin, Heidelberg
Rao PS & Bapat VA (1995) Somatic embryogenesis in sandalwood (Santalum album L.). In: Jain S, Gupta P & Newton R (eds.) Somatic Embryogenesis in Woody Plants, Vol 2 (pp 153–170). Kluwer Academic Publishers, Dordrecht, The Netherlands
Rao PS & Rangaswamy NS (1971) Morphogenic studies in tissue culture of parasite Santalum album L. Biologia Plantarum 13: 200–206
Srinivasan VV, Ananthapadmanabha HS & Rangaswamy CR (1997) A strategy for sustainable supply of sandal. In: Radomiljac AM, Ananthapadmanabha HS & Rangaswamy CR (eds.) Sandal and Its Products (p. 22). ACIAP Proceedings, Canberra
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Ravishankar Rai, V., McComb, J. Direct somatic embryogenesis from mature embryos of sandalwood. Plant Cell, Tissue and Organ Culture 69, 65–70 (2002). https://doi.org/10.1023/A:1015037920529
Issue Date:
DOI: https://doi.org/10.1023/A:1015037920529