Abstract
A protocol for somatic embryogenesis in Azadirachta indica A Juss. has been standardized using in vivo leaflets. Experiments were carried out to examine the effect of various auxins, cytokinins, sucrose, inorganic and organic salts on subsequent somatic embryo induction and maturation. Embryogenic calli were induced on Murashige and Skoog (MS) medium supplemented with 1.5 mg dm−3 kinetin and 1.5 mg dm−3 indole-3-acetic acid and subsequently all the stages of somatic embryo development (globular, cordate, torpedo and cotyledonary) were observed. Maturation of these embryos was accomplished with the same growth regulators after three subcultures. The histological study of somatic embryos showed resembles to zygotic embryos. The matured somatic embryos were transferred onto half strength MS-medium devoid of growth regulators for their germination (82 %). Plantlets were acclimatized in the field with a survival rate of 80–83.5 %.
Abbreviations
- 2,4-D:
-
2,4-dichlorophenoxyacetic acid
- BAP:
-
N 6-benzylaminopurine
- IAA:
-
indole-3-acetic acid
- IBA:
-
indole-3-butyric acid
- KIN:
-
kinetin
- MS:
-
Murashige and Skoog medium
- NAA:
-
naphthaleneacetic acid
References
Akula, C., Akula, A., Drew, R.: Somatic embryogenesis in clonal neem, Azadirachta indica A juss and analysis for in vitro azadirachtin production. — In Vitro cell. dev. Biol. Plant 39: 304–310, 2003.
Arora, D.K., Suri, S.S., Ramawat, K.G., Merillan, J.M.: Factors affecting somatic embryogenesis in long term callus cultures of ’safed musli’ (Chlorophytum orivilianum), an endangered wonder herb. — Indian J. exp. Biol. 37: 75–82, 1999.
Chengalrayan, K., Sathaya, S.S., Hazra, S.: Somatic embryogenesis from mature embryo-derived leaflets of peanut (Arachis hypogaea L.). — Plant Cell Rep. 13: 578, 1994.
Cuenca, B., San-Jose, M.C., Martinez, M.T., Ballester, A., Vieitez, A.M.: Somatic embryogenesis from stem and leaf explant of Quercus robur L. — Plant Cell Rep. 18: 538–543, 1999.
Eapen, S., George, L.: Somatic embryogenesis in peanut: influence of growth regulators and sugars. — Plant Cell Tissue Organ Cult. 35: 151–156, 1993.
Emons, A.M.C., Droppers, A.S., Toorn, C.V.D.: The influence of sucrose, mannitol, L-proline, abscisic acid and gibbrellic acid on the maturation of somatic embryos of Zea mays L. from suspension culture. — J. Plant Physiol. 142: 597–604, 1993.
Ganesh Kumari, K., Ganesan, M., Jayabalan, N.: Somatic embryogenesis and plant regeneration in Ricinus communis. — Biol. Plant. 52: 17–25, 2008.
Garin, E., Grenier, E., March, G.G.: Direct somatic embryogenesis in wild cherry (Prunus avium). — Plant Cell Tissue Organ Cult. 48: 83–91, 1997.
Martin, G.G., González-Benito, M.E., Manzanera, J.A.: Quercus suber L. somatic embryo germination and plant conversion: pretreatments and germination conditions. — In vitro cell. dev. Biol. Plant 37: 190–198, 2001.
Mathur, S., Shekhawat, G.S., Batra, A.: Somatic embryogenesis and plantlet regeneration from cotyledon explants of Salvadora persica L. — Phytomorphology 58: 57–63, 2008.
Murashige, T., Skoog, F.: A revised medium for rapid growth and bioassay with tobacco tissue cultures. — Physiol. Plant. 15: 473–497, 1962.
Murthy, B.N.S., Saxena, P.K.: Somatic embryogenesis and plant regeneration of neem (Azadirachta indica A. Juss). — Plant Cell Rep. 17: 469–475, 1998.
Rout, G.R., Debata, B.K., Das, P.: Somatic embryogenesis in callus culture of Rosa hybrida L. cv. ‘Landora’ — Plant Cell Tissue Organ Cult. 27: 65–69, 1991.
Satdive, R.K., Fulzele, D.P., Eapen, S.: Biotechnology of neem: Azadirachta indica A Juss. — In: Khan, I.A., Khanum, A. (ed.). Role of Biotechnology in Medicinal and Aromatic Plants. Vol. IV. Pp. 168–181. Ukaaz Publication, Hyderabad 2001.
Shekhawat, G.S., Batra, A., Mathur S.: A reliable in vitro protocol for rapid mass propagation of Azadirachta indica A. Juss. — J. Plant Biol. 29: 109–112, 2002.
Srivastava, P., Singh, M., Mathur, R., Chaturvedi, R.: In vitro organogenesis and plant regeneration from unpollinated ovary cultures of Azadirachta indica. — Biol. Plant. 53: 360–364, 2009.
Su, W.W., Hwang, W.L., Kim, S.Y., Sangawa, Y.: Induction of somatic embryogenesis in Azadirachta indica. A. Juss. — Plant Cell Tissue Organ Cult. 50: 91–95, 1997.
Terzi, M., Loschiavo, F.: Somatic embryogenesis. — In: Bhojwani, S.S.: Plant Tissue Culture, Applications and Limitations. Pp. 54–66. Elsevier, Amsterdam 1990.
Thengane, S., Joshi, M., Mascarenhas, A.F.: Somatic embryogenesis in neem (Azadirachta indica. A Juss). — In: Jain, S. M., Gupta, P.K., Newton, R.J. (ed.): Somatic Embryogenesis in Woody Plants. Vol. 2. Angiosperms. Pp. 357–374. Kluwer Academic Publishers, Dordrecht 1995.
Tiwari, D.W.: Monograph on Neem (Azadirachta indica. A.Juss.). — International Book Distributors, Deharadun 1992.
Vijaya Kumar, J., Ranjitha Kumari, B.D., Castaño, E.: Cyclic somatic embryogenesis and efficient plant regeneration from callus of safflower. — Biol. Plant. 52: 429–436, 2008.
Wilhelm, E.: Somatic embryogenesis in oak Quercus sps. — In Vitro cell. dev. Biol. Plant 36: 349–357, 2000.
Yang, X.M., An, L.Z., Xiong, Y.C., Zhang, J.P., Li, Y., Xu, S.J.: Somatic embryogenesis from immature zygotic embryos and monitoring genetic fidelity of regenerated plants in grapevine. — Biol. Plant. 52: 209–214, 2008.
Author information
Authors and Affiliations
Corresponding author
Additional information
Acknowledgement: G.S. Shekhawat greatly acknowledges the grant received from CSIR, New Delhi, as Senior Research fellow.
Rights and permissions
About this article
Cite this article
Shekhawat, G.S., Mathur, S. & Batra, A. Role of phytohormones and nitrogen in somatic embryogenesis induction in cell culture derived from leaflets of Azadirachta indica . Biol Plant 53, 707–710 (2009). https://doi.org/10.1007/s10535-009-0127-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10535-009-0127-7