Effect of Growth Regulators on Seed Germination and Its Significance in the Management of Aeginetia indica L. —A Root Holoparasite

DOI: 10.4236/ajps.2012.310179   PDF   HTML     4,297 Downloads   7,340 Views   Citations

Abstract

Seed germination in root holoparasites depends on receipt of certain chemical signals from the host plant. It is possible to induce germination in such seeds without the association of hosts by using growth regulators under in vivo and in vitro conditions. IAA, GA3 and Kinetin have been used to induce seed germination in Aeginetia indica L. to analyse the possible ways of exploiting knowledge of germination for the management of this weed. Seeds pre treated with 50 mg·L–1 of GA3 showed the production of aseptate, uninucleate root hair-like tubules, which probably help in the anchorage with host root. Under in vitro, GA3 (5.0 and 7.5 mg·L–1) has been found to induce and enhance percentage of seed germination. Therefore, it is concluded that GA3 could be used to bring suicidal germination of seeds thereby manage this parasitic weed effectively. Further production of uninucleate tubules and organisation of conventional bi-polar seedling under the influence of GA3 is being reported for the first time in this taxon.

Share and Cite:

C. Vijay, M. Thriveni and G. Shivamurthy, "Effect of Growth Regulators on Seed Germination and Its Significance in the Management of Aeginetia indica L. —A Root Holoparasite," American Journal of Plant Sciences, Vol. 3 No. 10, 2012, pp. 1490-1494. doi: 10.4236/ajps.2012.310179.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] C. Parker and C. R. Riches, “Parasitic Plants as Weeds,” In: M. C. Press and J. D. Graves, Eds., Parasitic Plants, Chapman and Hall, London, 1995, pp. 27-255.
[2] R. G. Stewart and M. C. Press, “The Physiology and Biochemistry of Parasitic Angiosperms,” Annual Review of Plant Physiology and Plant Molecular Biology, Vol. 41, 1990, pp. 127-151. doi:10.1146/annurev.pp.41.060190.001015
[3] K. R. Shivanna and N. S. Rangaswamy, “Seed Germination and Seedling Morphogenesis of the Root Parasite Sopubia delphinifolia G. Don,” Zeitschrift für Pflanzen-physiologie, Vol. 80, No. 2, 1976, pp. 112-119.
[4] M. S. Chennaveeraiah, K. Nataraja and P. S. Chikkannaiah, “In Vitro Culture of the Seeds of Root Parasite: Aeginetia indica Linn.,” Current Science, Vol. 40, No. 24, 1971, pp. 668-669.
[5] R. C. French and L. J. Sherman, “Factors Affecting Dormancy, Germination and Seeding Development of Aeginetia indica L. (Orobanchaceae),” American Journal of Botany, Vol. 63, No. 5, 1976, pp. 558-570. doi:10.2307/2441819
[6] A. Sahai and K. R. Shivanna, “Seed Germination and Seedling Morphogenesis in Parasitic Angiosperms of the Scrophulariaceae and Orobanchaceae,” Seed Science and Technology, Vol. 10, No. 3, 1982, pp. 565-583.
[7] T. Murashige and F. Skoog, “A Revised Medium for Rapid Growth and Bioassay with Tobacco Tissue Culture”, Physiologia Plantarum, Vol. 15, 1962, pp. 473-479. doi:10.1111/j.1399-3054.1962.tb08052.x
[8] D. A. Govindappa and G. R. Shivamurthy, “Seed Germination in Balanophora abbreviata Blume,” Phytomorphology, Vol. 26, No. 2, 1976, pp. 135-138.
[9] R. Kadry and R. Tewfic, “Seed Germination in Orobanche crenata Forsk.,” Svensk Botanisk Tidskrift, Vol. 50, 1956, pp. 270-286.
[10] T. S. Rangan and N. S. Rangaswamy, “Morphogenic Investigations on Parasitic Angiosperms. l. Cistanche tubulosa (Orobanchaceae),” Canadian Journal of Botany, Vol. 46, 1968, pp. 263-266.

  
comments powered by Disqus

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.