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Cytokinin translocation: Changes in zeatin and zeatin-riboside levels in the root exudate of tomato plants during their development

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Summary

The zeatin and zeatin riboside content of tomato (Lycopersicon esculentum Mill.) root exudates were determined at different stages of development. Zeatin riboside was found to be the major translocational form of cytokinin in the xylem during early vegetative growth. During flower bud formation this cytokinin decreased markedly in concentration so that, at anthesis, there was no appreciable difference in the zeatin and zeatin riboside concentration in the root exudate.

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References

  • Armstrong, D.J., Burrows, W.J., Evans, P.K., Skoog, F.: Isolation of cytokinins from tRNA. Biochem. Biophys. Res. Commun. 37, 451–456 (1969)

    PubMed  Google Scholar 

  • Beever, J.E., Woolhouse, H.W.: Increased cytokinin export from the roots of Perilla fructescens following disbudding or floral induction. In: Mechanisms of regulation of plant growth. Bieleski, R.L., Ferguson, A.R., Cresswell, M.M., eds. Bulletin 12. Royal Soc. of N.Z. Wellington, 681–686 (1974)

    Google Scholar 

  • Burrows, W.J., Carr, D.J.: Effects of flooding the root system of sunflower plants on the cytokinin content in the xylem sap. Physiol Plant. 22, 1105–1112 (1969)

    Google Scholar 

  • Chibnall, A.C.: Protein metabolism in the plant. New Haven: Yale University Press 1939

    Google Scholar 

  • Chibnall, A.C.: Protein metabolism in rooted runner bean leaves. New Phytol. 53, 31–37 (1954)

    Google Scholar 

  • Gordon, M.E., Letham, D.S., Parker, C.W.: Regulators of cell division in plant tissues XVIII. The metabolism and translocation of zeatin in intact radish seedlings. Ann. Bot. 38, 809–825 (1974)

    Google Scholar 

  • Henson, I.E., Wareing, P.F.: Cytokinins in Xanthium strumarium: A rapid response to short day treatment. Physiol. Plant. 32, 185–187 (1974)

    Google Scholar 

  • Hewett, E.W., Wareing, P.F.: Cytokinins in Populus robusta: Changes during chilling and bud burst. Physiol. Plant. 28, 393–399 (1973)

    Google Scholar 

  • Hewett, E.W., Wareing, P.F.: Cytokinin changes during chilling and bud burst in woody plants. In, Mechanisms of regulation of plant growth. Bielski, R.L., Ferguson, A.R., Cresswell, M.M. eds. Bulletin 12. Royal Soc. of N.Z. Wellington, 693–701 (1974)

    Google Scholar 

  • Kende, H.: Preservation of chlorophyll in leaf sections by substances obtained from root exudate. Science N.Y. 145, 1066–1067 (1964)

    Google Scholar 

  • Kende, H.: The cytokinins. International Review of Cytology 31, 301–338 (1971)

    PubMed  Google Scholar 

  • Kende, H., Sitton, D.: The physiological influence of kinetin and gibberellin-like root hormones. Ann. N.Y. Acad. Aci. 144, 235–243 (1967)

    Google Scholar 

  • Klämbt, D.: Cytokinine aus Helianthus annuus. Planta (Berl.) 82, 170–178 (1968)

    Google Scholar 

  • Letham, D.S.: Regulators of cell division in plant tissues. XX. The cytokinins of coconut milk Physiol. Plant. 32, 66–70 (1974)

    Google Scholar 

  • Leonard, N.J.: Chemistry of the cytokinins. In: The Chemistry and biochemistry of plant hormones. Recent Advances in Phytochemistry Vol. 7, 21–56 Runeckles, V.C., Sondheimer, E., Walton, D.C. eds. New York: Academic Press 1974

    Google Scholar 

  • Menary, R.C., Van Staden, J.: Effect of phosphorus nutrition and cytokinins on flowering in the tomato Lycopersicon esculentum Mill. Aust. J. Pl. Physiol. In Press (1976)

  • Miller, C.O.: Kinetin and kinetin-like compounds. In: Modern methods of plant analysis. Peach, K., Tracey, M.V. eds. Vol. 6, 194–202. Berlin-Göttingen-Heidelberg: Springer 1963

    Google Scholar 

  • Short, K.C., Torrey, J.G.: Cytokinins in seedling roots of pea. Plant Physiol. 49, 155–160 (1972)

    Google Scholar 

  • Sitton, D., Trai, C., Kende, H.: Decreased cytokinin production in the roots as a factor in shoot senescence. Planta (Berl.) 73, 296–300 (1967)

    Google Scholar 

  • Skene, K.G.M.: Cytokinins in the xylem sap of Grape Vine canes: Changes in activity during coldstorage. Planta (Berl.) 104, 89–92 (1972)

    Google Scholar 

  • Van Staden, J., Davey, J.E.: Translocation of cytokinins in xylem sap of herbaceous plants. Z. Pflanzenphysiol. (1976) In Press

  • Van Staden, J., Menary, R.C.: Identification of cytokinins in the xylem sap of tomato. Z. Pflanzenphysiol. (1976) In Press

  • Varga, A., Bruinsma, J.: The growth and ripening of tomato fruits at different levels of endogenous cytokinins. J. Hort. Sci. 49, 135–142 (1974)

    Google Scholar 

  • Went, F.W.: Effect of the root system on tomato stem growth. Plant. Physiol. 18, 51–65 (1943)

    Google Scholar 

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Davey, J.E., van Staden, J. Cytokinin translocation: Changes in zeatin and zeatin-riboside levels in the root exudate of tomato plants during their development. Planta 130, 69–72 (1976). https://doi.org/10.1007/BF00390846

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  • DOI: https://doi.org/10.1007/BF00390846

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