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Phytohormone effects on germination and on carbohydrate metabolism in pearl millet seeds

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The effect of phytohormones (ABA, GA3) on germination, osmoprotectant solutes, and enzymes of carbohydrate metabolism in pearl millet embryos and endosperm was investigated. Phytohormones influenced different aspects at physiological and biochemical levels. In comparison with the control, germination decreased markedly (65%) under ABA treatment; however, no significant change was observed after GA3 treatment. Subsequently, an influence of phytohormones on total and reducing sugars and correlating enzymes, viz., amylase and invertase, was also observed. Osmoregulatory studies revealed a considerable increase in total and reducing sugar contents in embryos and endosperm under both treatments. With comparison to control, the higher level of sugar contents could be due to the higher amylase and invertase activities, reflecting the impact of exogenous abiotic treatments on interconversion between carbohydrates and correlating enzymes. In addition, all treatments decreased the mobilization of starch, resulting in high starch levels in control embryos and endosperm compared with the treated tissues. Based upon these results, a possible physiological role of these compatible solutes along with enzymes of carbohydrate metabolism in pearl millet seeds is discussed.

Affiliations: 1: Department of Biotechnology, Lyallpur Khalsa College ; 2: Department of Biotechnology, Lyallpur Khalsa College


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1. Gupta, A.K., Singh, J., Kaur, N., Singh, R. 1993. Effect of polyethylene glycol induced-water stress on germination and reserve carbohydrate metabolism in Chickpea culti-vars differing in tolerance to water de?cit.Plant Physiol. Biochem. 31: 369–378.
2. Amuti, K.S., Pollard, C.J. 1977. Soluble carbohydrates of dry and developing seeds. Phytochemistry 16: 529–532.
3. Bewley, J.D. 1997. Seed germination and dormancy. Plant Cell 9: 1055–1066.
4. Bohnert, H.J., Nelson, D.E., Jensen, R.G. 1995. Adaptations to environmental stresses. Plant Cell 7: 1099–1111.
5. Dubois, M., Gilles, K.A., Hamilton, J.K., Rebers, P.A., Smith, F. 1956. Colorimetric method for the determination of sug-ars and related substances. Anal. Chem. 28: 350–356.
6. Epstein, E., Rush, J.D., Kingsbury, R.W., Kelley, D.B., Cin-nigham, G.A., Wrono, A.F. 1980. Saline culture of crops: a genetic approach. Science 210: 399–404.
7. Fincher, G.B. 1989. Molecular and cellular biology association with endosperm mobilization in germination cereal grains. Annu. Rev. Plant Physiol. Plant Mol. Biol. 40: 305–346.
8. Flowers, T.J., Troke, P.F., Yeo, A.R. 1977. The mechanism of salt tolerance in halophytes. Annu. Rev. Plant Physiol. 28: 89–121.
9. Garciarrubio, A., Legaria, J.P., Covarrubias, A.A. 2003. Absci-sic acid inhibits germination of mature Arabidopsis seeds by limiting the availability of energy and nutrients. Planta 2: 182–187.
10. Gorham, J., Hughes, L.Y., Wyn Jones, R.G. 1981. Low mo-lecular weight carbohydrates in some salt stressed plants. Physiol. Plant. 53: 27–33.
11. Kameli, A., Losel, D.M. 1995. Contribution of carbohydrates and solutes to osmotic adjustment in wheat leaves under water stress. J. Plant Physiol. 145: 363–366.
12. Kaur, S., Gupta, A.K., Kaur, N. 2003. Effect of kinetin on starch and sucrose metabolizing enzymes in salt-stressed chickpea seedlings. Biol. Plantarum 46: 67–72.
13. Gill, K.S., Singh, O.S. 1985. Effect of salinity on carbohydrate metabolism during paddy (Oryza sativa) seed germination under salt stress condition. J. Exp. Biol. 23: 384–386.
14. Gill, P.K., Sharma, A.D., Singh, P., Bhullar, S.S. 2003. Chang-es in germination, growth and soluble sugar contents of Sorghum bicolor (L.) Moench seeds under various abiotic stresses. Plant Growth Reg. 40: 157–162.
15. Koster, K.L., Leopold, A.C. 1988. Sugar and desiccation tol-erance in seeds. Plant Physiol. 88: 829–832.
16. Meier, H., Reid, J.S.G. 1982. Reserve polysaccharides other than starch in higher plants. In: Loewus, F.A., Tanner, W., eds. Encyclopedia of plant physiology. New series, Vol. 13a. Springer-Verlag, Berlin, pp. 418–471.
17. Monerri, C., Garcia-Luis, A., Guardiola, J. L. 1986. Sugar and starch changes in pea cotyledons during germination. Physiol. Plant. 67: 49–54.
18. Nelson, N. 1944. A photometric adaptation of the Somogyi method for the determination of glucose. J. Biol. Chem. 153: 315–380.
19. Sharma, A.D., Nanda, J.S., Gill, P.K., Bhullar, S.S., Singh, P., Vyas, D. 2002. Enhancement in inulinase production by mutagenesis in Penicillium purpurogenum. Indian J. Biotechnol. 1: 270–274.
20. Sawhney, S.K., Singh, R. 2000. Introductory practical bio-chemistry. Narosa Publishing House, New Delhi, Ind.
21. Prado, F.E., Gonzalez, J.A., Gallardo, M., Moris, M., Boero, C., Kortsarz, A. 1995. Changes in soluble carbohydrates and invertase activity in Chenopodium quinoa (quinoa) developed for saline stress during germination. Curr. Top. Phytol. 14: 1–5.
22. Soderman, E., Mattsson, J., Engstrom, P. 1996. The Arabidop-sis homeobox gene ATHB-7 I induced by water de?citandby abscisic acid. Plant J. 10: 375–381.
23. Thorpe, T.A., Joy, R.W., Leung, D.W.M. 1986. Starch turn-over in shoot-forming tobacco cultures. Can. J. Bot. 66: 58–62.
24. Trouverie, J., Thevenot, C., Rocher, J.P., Sotta, B., Prioul, J.L. 2003. The role of abscisic acid in the response of a speci?cvacular invertase to water stress in the adult maize leaf. J. Exp. Bot. 54: 2177–2186.
25. Yu, S.M., Lee, Y.C., Fang, S.C., Chan, M.T., Hwa, S.F., Liu, L.F. 1996. Sugars act as signal molecules and osmotica to regulate the expression of alpha-amylase genes and meta-bolic activities in germinating cereal grains. Plant Mol. Biol. 30: 1277–1289.

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