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Pakistan Journal of Biological Sciences

Year: 2005 | Volume: 8 | Issue: 12 | Page No.: 1643-1648
DOI: 10.3923/pjbs.2005.1643.1648
Morphogenetic Effects of IAA and HgCl2 on the Seedlings of Pisum sativum L.
Najma Yaqub Chaudhry

Abstract: Effects of heavy metals i.e., IAA and HgCl2 were studied on the external and internal morphology of root, shoot and compound leaves of Pisum sativum Linn. The hormone and heavy metal were used individually i.e., 150 ppm IAA, 300 ppm IAA, 100 ppm HgCl2 and 200 ppm HgCl2 and in combination i.e., 150 ppm IAA+ 100 ppm HgCl2, 150 ppm IAA + 200 ppm HgCl2, 300 ppm IAA+ 100 ppm HgCl2, 300 ppm IAA+ 200 ppm HgCl2. In the external morphology with IAA applications inhibition in length with a corresponding increase in diameter was observed in root and shoot. Moreover, there was enhanced increase in the number of rootlets and tendrils. HgCl2 showed inhibition. In combinations of IAA+ HgCl2 inhibition was studied. Furthermore, HgCl2 decreased the number of leaflets. In internal morphology expansion was registered in epidermis, cortex, vascular and pith region with IAA and inhibition with HgCl2.

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How to cite this article
Najma Yaqub Chaudhry , 2005. Morphogenetic Effects of IAA and HgCl2 on the Seedlings of Pisum sativum L.. Pakistan Journal of Biological Sciences, 8: 1643-1648.

Keywords: HgCl2, heavy metal, IAA, harmone, compound leaves, stem, root and P. sativum

REFERENCES
  • Stowe, B.B. and T. Yamaki, 1995. The history and physiological action of the gibberellins. Ann Rev. Plant Physiol., 8: 181-216.

  • Awan, I.U., M.S. Baloch, N.S. Sadozai and M.Z. Sulemani, 1999. Stimulatory effect of GA and IAA on ripening kernel development and quality of rice. Pak. J. Biol. Sci., 2: 410-412.

  • Jiang, K. and J.L. Feldman, 2003. Root meristem establishment and maintenance. J. Plant Growth Regul., 21: 432-440.
    CrossRef    

  • Chunn, J., S. Taketa, S. Tsurum and M. Ichii, 2003. Effects of auxin on lateral root initiation and root gravitropism in a lateral rootless mutant Lrt 1 of rice. Plant Growth Regul., 39: 161-170.

  • Mesejo, C., A.M. Fuentes, M. Jaun, V. Nnela and M. Agusti, 2003. Vascular tissue development of Citrus fruit peduncle by synthetic auxins. Plant Growth Regul., 39: 131-135.
    CrossRef    

  • Kolla, V.A., D. Suhita and A.S. Raghavendra, 2004. Marked changes in the volume of mesophyll protoplasts of pea on exposure to growth hormones. J. Plant Physiol., 161: 557-562.
    Direct Link    

  • Haga, K. and M. Lino, 1997. The short term growth stimulation induced by external supply of IAA in internodes of intact Pea seedlings. Aust. J. Plant Physiol., 24: 215-226.

  • Botkin, D.B and E.A., Keller, 1995. Environmental Health and Technology Environmental Sciences. John Wiley and Sons, Inc., USA., pp: 287

  • Ivanov, V.B., E.I. Bystrova, N.V. Obroucheva, O.V. Antipova and M. Sobotik, 1998. Bergmann of plant physiology Moscow Russia. J. Applies Bot., 72: 140-143.

  • Ionenko, I.F., A.V. Anisimov and A.S. Ronanov, 2003. Effects of water stress and HgCl 2 on the translational diffusion of water in maize root. Russian J. Plant Physiol., 50: 79-83.
    CrossRef    

  • Mesejo, C., A.M. Fuentes, M. Jaun, V. Nnela and M. Agusti, 2003. Vascular tissue development of Citrus fruit peduncle by synthetic auxins. Plant Growth Regul., 39: 131-135.
    CrossRef    

  • Steel, R.G.D. and J.H. Torrie, 1981. Principles and Procedures of Statistics a Biometrical Approach. McGraw Hill, Int. Book Co., UK

  • Wang, S., S. Taketa, S.M. Ichii, L. Xu, K. Xia and X. Chou, 2003. Lateral root formation in rice differential effects of IAA i.e. indole-3-acetic acid and indole-3-butyricacid. Plant Growth Regul., 41: 45-47.

  • Martens, S.N. and R.S. Boyd, 2002. The defensive role of nickel hyperaccumulation by plants a field experiment. Am. J. Bot., 89: 998-1003.
    Direct Link    

  • Alsono, J., M.J. Salgado, M.A. Garcia and M.J. Melgram, 2000. Accumulation of mercury in edible macrofungi influence of some factors. Arch. Environ. Contam. Toxicol., 38: 158-162.
    Direct Link    

  • Xie, Z., D. Jiang, W. Cao, T. Dai and Q. Jiang, 2003. Relationship of endogenous plant hormones to accumulation of grain proteins and starch in winter wheat under different post-anthesis soil water. Plant Growth Regul., 41: 117-127.
    Direct Link    

  • Davies, P.J., 1995. Plant Hormones Physiology Biochemistry and Molecular Biology. Dordrecht Kluwer Academic, The Netherlands

  • Tuominen, H., I. Puech, S. Fink and B. Sundberg, 1997. A radial concentration gradient of IAA is related to secondary xylem development in hybrid aspen. Plant Physiol., 155: 577-585.

  • Herman, J.G., S.J.L. Peter, F.P. Paul, C. Brian and M.S. Rooney, 2002. Clinical findings of irritation among chromium chical production workers. J. Applied Toxicol., 22: 161-165.

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