Summary
Transport of [3H]GA1 occurred freely through stem segments ranging in length from 6 mm to 8 cm. Only small amounts of radioactivity appeared in agar receiver blocks, particularly when transport in young, elongating, segments was measured. Little or no metabolism of [3H]GA1 appeared to take place during a 16 h transport period. With 6 mm segments, there was no indication of polarity in longitudinal transport. In 8 cm long segments, an apparent acropetal polarity of [3H]GA1 transport occurred in young, but not in mature, segments. However, it appeared likely that gibberellin transport, even in long young segments, was not truly polar, but could be influenced by the spatial distribution of growth centres in relation to gibberellin source.
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References
Bailiss, K. W., Wilson, I. M.: Growth hormones and the creeping thistle rust. Ann. Bot. 31, 195–211 (1967)
Clor, M. A.: Translocation of tritium-labelled gibberellic acid in pea stem segments and potato tuber cylinders. Nature (Lond.) 214, 1263–1264 (1967)
Crafts, A. S., Crips, C. E.: Phloem transport in plants, San Francisco: Freeman & Co. 1971
de la Fuente, R. K., Leopold, A. C.: Kinetics of polar auxin transport. Plant Physiol. (Lancaster) 41, 1481–1484 (1966)
Goldsmith, M. H. M.: Transport of plant growth regulators. In: The physiology of plant growth and development (M. B. Wilkins, ed.), p. 127–162. London: McGraw-Hill 1969
Greenblatt, G. A., Jacobs, W. P.: Polar transport of gibberellic acid (GA3) through isolated internode sections of Coleus. Plant Physiol. (Lancaster) 41, suppl., 33 (1966)
Hertel, R., Evans, M. L., Leopold, A. C., Sell, H. M.: The specificity of the auxin transport system. Planta (Berl.) 85, 238–249 (1969)
Jacobs, W. P.: The movement of plant hormones: auxins, gibberellins, and cytokinins. In: Plant Growth Substances, Proc. Seventh Int. Conf. Plant Growth Substances, Canberra, Australia (D. J. Carr, ed.), p. 701–709 (1970)
Jacobs, W. P., Kaldewey, H.: Polar movement of gibberellic acid through young Coleus petioles. Plant Physiol. (Lancaster) 45, 539–541 (1970)
Jones, R. L.: Gibberellins: Their physiological role. Ann. Rev. Plant Physiol. 24, 571–598 (1973)
Jones, R. L., Phillips, I. D. J.: Agar-diffusion technique for estimating gibberellin production by plant organs. Nature (Lond.) 204, 497–499 (1964)
Jones, R. L., Phillips, I. D. J.: Organs of gibberellin synthesis in light-grown sunflower plants. Plant Physiol. (Lancaster) 41, 1381–1386 (1966)
Jones, R. L., Phillips, I. D. J.: Effect of CCC on the gibberellin content of excised sunflower organs. Planta (Berl.) 72, 53–59 (1967)
Kato, J.: Nonpolar transport of gibberellin through pea stem and method for its determination. Science 128, 1008–1009 (1958)
Lang, A.: Gibberellins: Structure and metabolism. Ann. Rev. Plant Physiol. 21, 537–570 (1970)
McComb, A. J.: The stability and movement of gibberellic acid in pea seedlings. Ann. Bot., N. S. 28, 669–687 (1964)
Most, B. H., Scott, T. K.: Transport of growth regulators in sugar cane. Plant Physiol. (Lancaster) 47, Suppl. 41 (1971)
Phillips, I. D. J.: Effect of relative hormone concentration on auxin-gibberellin interaction in correlative inhibition of axillary buds. Planta (Berl.) 96, 27–34 (1971a)
Phillips, I. D. J.: Factors influencing the distribution of growth between stem and axillary buds in decapitated bean plants. J. exp. Bot. 22, 465–471 (1971b)
Phillips, I. D. J.: Maintenance of gibberellin biosynthesis in excised sunflower apical buds by exogenous sucrose or mevalonate. Planta (Berl.) 101, 277–282 (1971c)
Phillips, I. D. J.: Endogenous gibberellin transport and biosynthesis in relation to geotropic induction of excised sunflower shoot-tips. Planta (Berl.) 105, 234–244 (1972a)
Phillips, I. D. J.: Diffusible gibberellins and phototropism in Helianthus annuus. Planta (Berl.) 106, 363–367 (1972b)
Pitel, D. W., Vining, L. C.: Preparation of gibberellin A1-3,4-3H. Canad. J. Biochem. 48, 259–263 (1970)
Railton, I. D., Phillips, I. D. J.: Gibberellins and geotropism in Zea mays coleoptiles. Planta (Berl.) 109, 121–126 (1973)
Rappaport, L., Sachs, M.: Wound-induced gibberellins. Nature (Lond.) 214, 1149–1150 (1967)
Scott, T. K., Most, B. H.: The movement of growth hormones in sugar cane. In: Hormonal regulation in plant growth and development (H. Kaldewey and Y. Vardar, eds.), p. 57–67. Weinheim: Verlag-Chemie 1972
Stoddart, J. L., Lang, A.: Effects of daylength on gibberellin synthesis in leaves of red clover (Trifolium pratense L.). In: Biochemistry and physiology of plant growth substances, p. 1371–1383 (F. Wightman and G. Setterfield, eds.). Ottawa: Runge Press 1968
Zeevart, J. A. D.: Vernalization and gibberellins in Lunaria annua L. In: Biochemistry and physiology of plant growth substances, p. 1357–1370 (F. Wightman and G. Setterfield, eds.). Ottawa: Runge Press 1968
Zweig, G. S., Yamaguchi, S., Mason, G. W.: Translocation of C14-gibberellin in red kidney bean, normal corn and dwarf corn. Advanc. Chem. Ser. 28, 112–134 (1961)
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Phillips, I.D.J., Hartung, W. Basipetal and acropetal transport of [3,4-3H]Gibberellin A1 in short and long segments of Phaseolus coccineus second internode. Planta 116, 109–121 (1974). https://doi.org/10.1007/BF00380646
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DOI: https://doi.org/10.1007/BF00380646