Abstract
Prunus persica plants of different ages and statesof maturation were analysed to compare their phytohormonal status. Endogenouslevels of indole-3-acetic acid (IAA), abscisic acid (ABA), and severalcytokinins (Cks): zeatin (Z), zeatin riboside ([9R]Z), dihydrozeatin ((diH)Z),dihydrozeatin riboside ((diH)Z[9R]), isopentenyl adenine (iP) and isopentenyladenosine ([9R]iP), were measured in order to determine their possible use asphysiological indices of phase change and maturation. A decrease in Ck levels(Z, [9R]Z, (diH)Z, (diH)[9R]Z, and iP, [9RiP) was found from the embryonic tojuvenile stage as well as a decrease in the ratio of iP-type (iP and[9R]iP)/Z-type Cks paralleling the increase in tree age. ABA levels increasedduring maturation in Prunus persica and the ratio ofCks/IAA decreased with tree age. From our results, we propose that the balancesof Cks/IAA and iP-type/Z-type Cks are good indices of different developmentalstates in Prunus persica.
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References
Bonga J.M. 1982. Vegetative propagation in relation to juvenility, maturity and rejuvenation. In: Nijhoff M. (ed.), Tissue Culture and Forestry. Dr W Junk, pp. 387–412.
Bonga J.M. and Von Aderkas P. 1993. Clonal Forestry I, Genetics and Biotechnology. In: Ahuja M.R. and Libby W.J. (eds), Rejuvenation of Tissues from Mature Conifers and its Implications for Propagation in Vitro. Springer-Verlag, Berlin, pp. 182–200.
Centeno M.L., Rodríguez R., Berros B. and Rodríguez A. 1997. Endogenous hormonal content and somatic embryogenic capacity of Corylus avellana L. cotyledons. Plant Cell. Rep. 17: 139–144.
Chin T.Y., Meyer M.M. and Beevers L. 1989. Abscisic acid-stimulated rooting of stem cuttings. Planta 88: 192–196.
Fernández B., Centeno M.L., Feito I., Sánchez-Tamés R. and Rodríguez A. 1995. Simultaneous analysis of cytokinins, auxins and abscisic acid by combined immunoaffinity chromatography, high performance liquid chromatography and immunoassay. Phytochem. Anal. 6: 49–54.
Fouret Y. 1987. Étude in vitro du rejeunissement préalable à la micropropagation chez le Sequoia sempervirens (Endl): recherché des marqueurs morphologiques, physiologiques et biochimiques. University of Paris VI, Paris, Doctoral thesis, p. 301.
Fraga M.F., Centeno M.L., Cañal M.J., Rodríguez A., Fernández B. and Rodríguez R. 1998. DNA methylation patterns and phytohormones associated to ageing in Pinus radiata. Melle, Belgium, COST 822, pp. 66–69.
Galoch E. 1985. Comparison of the content of growth regulators in juvenile and adult plants of birch. Acta Physiol. Plant. 7: 205–215.
Hackett W.P. 1985. Juvenility maturation and rejuvenation in woody plants. Hortic. Rev. 7: 109–155.
Haffner V., Enjalric F., Lardet L. and Carron M.P. 1991. Maturation of woody plants: a review of metabolic and genomic aspects. Ann. Sci. For. 48: 615–630.
Maldiney R., Pelese F., Pilate G., Sota B., Sossountzov L. and Miginiac E. 1986. Endogenous levels of abscisic acid, indole-3-acetic acid, zeatin and zeatin-riboside during the course of adventitious root formation in cuttings of Craigella and Craigella lateral suppressor tomatoes. Physiol. Plant. 68: 426–430.
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Moncaleán, P., Rodríguez, A. & Fernández, B. Plant growth regulators as putative physiological markers of developmental stage in Prunus persica . Plant Growth Regulation 36, 27–29 (2002). https://doi.org/10.1023/A:1014729613640
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DOI: https://doi.org/10.1023/A:1014729613640