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Root Hormones and Overground Development

  • Johan Bruinsma
Part of the Nato Advanced Study Institutes Series book series (NSSA, volume 22)

Abstract

Many cultural measures in crop production are exerted through the soil. Soil cultivation, fertilization, drainage, and irrigation affect root growth initially and subsequently the development of the overground plant parts. That plants develop into harmonious organisms, with balanced proportions between their various organs, is mainly due to correlative interactions between these organs. Well-developing shoots allow the root system to develop accordingly and vice versa. This is not just a matter of adequate supply of nutrients. Of course, roots need to be supplied with photosynthetic assimilates from the leaves, such as sucrose and vitamins and sometimes amino acids; and the leaves, in turn, feed water, minerals, and amino acids into the shoot. But this is not the whole story. The various correlative effects between organs are mediated by hormonal substances that, by definition, are produced at a particular site and affect one or more developmental processes at another site after translocation. They are the “calines” suggested by Went (1938), produced by one organ and evoking the growth of another plant part. We shall be concerned with what Went called “caulocalines,” root-produced hormonal substances influencing the growth and development of such overground parts as stems, leaves, buds, flowers, and fruits. To these organs they convey effects of soil humidity, aeration, fertilization, man-made chemicals, root nodules, etc. In this way, root hormones play an important role as a link in the chain between cultural measures of the grower and overground crop growth.

Keywords

Adventitious Root Apical Dominance Cytokinin Content Hedera Helix Root Pruning 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Atkin, R. K., Barton, G. E., and Robinson, D. K., 1973, Effect of root-growing temperature on growth substances in xylem exudateof Zea mays, J. Exp. Bot., 24:475–487.CrossRefGoogle Scholar
  2. Berghoef, J. , and Bruinsma, J., 1978, Flower development in Begonia franconis, Z. Pflanzenphysiol., in press.Google Scholar
  3. Bernier, G., 1976, La nature complexe du stimulus floral des facteursde floraison, in: “Etudes de Biologie Végétale. Hommage au Professeur P. Chouard,” R. Jacques, ed., Paris.Google Scholar
  4. Bubán, T., Varga, A., Tromp, J., Knegt, E., and Bruinsma, J., 1978,Effects of ammonium and nitrate nutrition on the levels of zeatin and amino nitrogen in xylem sap of apple rootstocks,Z. Pflanzenphysiol., in press.Google Scholar
  5. Chailakhyan, M. K., and Khryanin, V. N., 1978, The role of roots in sex expression in hemp plants, Planta, 138:185–188.CrossRefGoogle Scholar
  6. Chang, W. C., and Goodin, J. R., 1974, The role of root system in lateral bud growth of pea (Pisum sativum L. , var. Alaska),Bot. Bull. Acad. Sinica, 15:112–122.Google Scholar
  7. Crozier, A., and Reid, D. M. , 1971, Do roots synthesize gibberellins?,Can. J. Bot., 49:967–975.CrossRefGoogle Scholar
  8. Dostal, H. C., and Leopold, A. C., 1967, Gibberellin delays ripening of tomatoes, Science, 158:1579–1580.PubMedCrossRefGoogle Scholar
  9. Engelbrecht, R., 1964, Ueber Kinetinwirkungen bei intakten Blättern von Nicotiana rustica, Flora Allg. Bot. Z., 154:57–69.Google Scholar
  10. Grasmanis, V. O., and Edwards, G. E., 1974, Promotion of flowerinitiation in apple trees by short exposure to the ammoniumion, Aust. J. Plant Physiol., 1:99–105.CrossRefGoogle Scholar
  11. Gregory, F. G., and Veale, J. A., 1957, A reassessment of the problem of apical dominance, Symp. Soc. Exp. Biol., 11:1–20.PubMedGoogle Scholar
  12. Hahn, H. R. de Zacks, and Kende, H., 1974, Cytokinin formation in pea seeds, Naturwiss., 61:170.PubMedCrossRefGoogle Scholar
  13. Henson, I. E., and Wareing, P. F., 1977, Cytokinins in Xanthium strumarium L.: Some aspects of the photoperiodic control of endogenous levels, New Physiol., 78:35–45.CrossRefGoogle Scholar
  14. Hoad, G. V., Loveys, B., and Skene, K. G. M. , 1977, The effect of fruit removal on cytokinins and gibberellin-like substances in grape leaves, Planta, 136:25–30.CrossRefGoogle Scholar
  15. Itai, C., and Vaadia, Y., 1965, Kinetin-like activity in root exudate of water-stressed sunflower plants, Physiol. Plant.,18:941–944.CrossRefGoogle Scholar
  16. Itai, C., Ben-Zioni, A., and Ordin, L., 1973, Correlative changes in endogenous hormone levels and shoot growth induced by short heat treatments to the root, Physiol. Plant., 29:355–360.CrossRefGoogle Scholar
  17. Jones, O. P., and Lacey, H. J., 1968, Gibberellin-like substances in the transpiration stream of apple and pear trees, J. Exp.Bot., 19:526–531.CrossRefGoogle Scholar
  18. Jong, A. W. de, and Bruinsma, J., 1974a, Pistil development inCleome flowers. I. Effects of nutrients and of the presence of leaves and fruits on female abortion in Cleome spinozaJacq., Z. Pflanzenphysiol., 72:220–226.Google Scholar
  19. Jong, A. W. de, and Bruinsma, J., 1974b, Pistil development inCleome flowers. III. Effects of growth-regulating substances on flower buds of Cleome iberidella Welw. ex Oliv grown in vitro, Z. Pflanzenphysiol., 73:142–151.Google Scholar
  20. Jong, A. W. de, and Bruinsma, J., 1974c, Pistil development inCleome flowers. IV. Effects of growth-regulating substances on female abortion in Cleome spinoza Jacq., Z. Pflanzenphysiol.,73:152–159.Google Scholar
  21. Krechting, H. C. J. M., Varga, A., and Bruinsma, J., 1978, Absence of cytokinin biosynthesis in pea seeds developing in vitro,Z. Pflanzenphysiol., 87:91–93.Google Scholar
  22. Lavender, D. P., Sweet, G. B., Zaerr, J. B., and Hermann, R. K.,1973, Spring shoot growth in Douglas fir may be initiated by gibberellins exported from the roots, Science, 182:838–839.PubMedCrossRefGoogle Scholar
  23. Luckwill, L. C., 1970, The control of growth and fruitfulness of apple trees, in: “Physiology of Tree Crops,” L. C. Luckwill and C. V. Cutting, eds., Academic Press, London, New York.Google Scholar
  24. MacDavid, C. R., Sagar, G. R., and Marshall, C., 1973, The effect of root pruning and 6-benzylaminopurine on the chlorophyll content, 14CO2, fixation and the shoot/root ratio in seedlings of Pisum sativum L., New Phytol., 72:465–470.CrossRefGoogle Scholar
  25. Menary, R. C., and van Staden, J., 1976, Effect of phosphorus nutrition and cytokinins on flowering in the tomato,Lycopersicon esculentum Mill., Aust. J. Plant Physiol., 3:201–205.CrossRefGoogle Scholar
  26. Mullins, M. G., 1967, Morphogenetic effects of roots and of some synthetic cytokinins in Vitis vinifera L., J. Exp. Bot., 18:206–214.CrossRefGoogle Scholar
  27. Phillips, D. J., 1968, Nitrogen, phosphorus, and potassium distri-bution in relation to apical dominance in dwarf bean Phaseolus vulgaris c.v. Canadian Wonder, J. Exp. Biol., 19:617–627.Google Scholar
  28. Railton, I. D., and Reid, D. M. , 1973, Effects of benzyladenine on the growth of waterlogged tomato plants, Planta, 111:261–266.CrossRefGoogle Scholar
  29. Reid, D. M., and Carr, D. J., 1967, Effect of a dwarfing compound,CCC, on the production and export of gibberellin-like sub-stances by root systems, Planta, 73:1–11.CrossRefGoogle Scholar
  30. Reid, D. M., and Crozier, A., 1971, Effects of waterlogging on the gibberellin content and growth of tomato plants, J. Exp. Bot.,22:39–48.CrossRefGoogle Scholar
  31. Rogler, C. E., and Hackett, W. P., 1975a, Phase change in Hedera helix: Induction of the mature to juvenile phase change by gibberellin A3. Physiol. Plant., 34:141–147.CrossRefGoogle Scholar
  32. Rogler, C. E., and Hackett, W. P., 1975b, Phase change in Hederahelix: Stabilization of the mature form with abscisic acid and growth retardants, Physiol. Plant., 34:148–152.CrossRefGoogle Scholar
  33. Schwabe, W. W., and Al-Doori, A. H., 1973, Analysis of a juvenile-like condition affecting flowering in the black currant(Ribes nigrum), J. Exp. Bot., 24:969–981.CrossRefGoogle Scholar
  34. Sitton, D. , Richmond, A., and Vaadia, Y. , 1967, On the synthesis of gibberellins in roots, Phytochem., 6:1101–1105.CrossRefGoogle Scholar
  35. Skene, K. G. M., 1968, Increases in the levels of cytokinins in bleeding sap of Vitis vinifera L. after CCC treatment, Science,159:1477–1478.PubMedCrossRefGoogle Scholar
  36. Torrey, J. G., 1976, Root hormones and plant growth, Ann. Rev.Plant Physiol., 27:435–459.CrossRefGoogle Scholar
  37. Tucker, D. J., 1976, Endogenous growth regulators in relation to side shoot development in the tomato, New Phytol., 77:561–568.CrossRefGoogle Scholar
  38. Uheda, E., and Kuraishi, S., 1977, Increase of cytokinin activity in detached etiolated cotyledons of squash after illumination,Plant & Cell Physiol., 18:481–483.Google Scholar
  39. Varga, A., and Bruinsma, J., 1974, The growth and ripening of tomato fruits at different levels of endogenous cytokinins,J. Hort. Sci., 49:135–142.Google Scholar
  40. Wagner, H., and Michael, G. , 1969, Cytokininbildung in Wurzeln von Sonnenblumenbei unterschiedlicher Stickstoffernährung und Chlorophenicol-Zusatz, Naturwiss., 56:379.PubMedCrossRefGoogle Scholar
  41. Wareing, P. F., Horgan, R., Henson, I. E. , and Davis, W., 1977,Cytokinin relations in the whole plant, in: “Plant Growth Regulation,” P. E. Pilet, ed., Springer-Verlag, Berlin, New York.Google Scholar
  42. Wellensiek, S. J., 1962, Dividing cells as the locus for vernalization, Nature, 195:307–308.CrossRefGoogle Scholar
  43. Wellensiek, S. J., 1968, Floral induction through the roots of Silene armeria, R. Acta Bot. Neerl., 17:5–8.Google Scholar
  44. Went, F. W., 1938, Specific factors other than auxin affecting growth and root formation, Plant Physiol., 13:55–80.PubMedCrossRefGoogle Scholar
  45. Zeevaart, J. A. D., 1977, Sites of abscisic acid synthesis and metabolism in Ricinus communis, Plant Physiol., 59:788–791.PubMedCrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1979

Authors and Affiliations

  • Johan Bruinsma
    • 1
  1. 1.Agricultural UniversityWageningenThe Netherlands

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