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Effects of Growth Regulators and Gibberellic Acid on 2,4,5-T Translocation

Published online by Cambridge University Press:  12 June 2017

Eddie Basler
Eddie Basler*
Affiliation:
School Biol. Sci. Oklahoma State Univ. Stillwater, OK 74074
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Abstract

The effects of ethephon (2,chloroethyl-phosphonic acid), ancymidol [α-cyclopropyl-α-(4-methoxyphenyl)-4-pyrimidinemethanol], DPX1840 [3,3a-dihydro-2-(p-methoxyphenyl)-8H-pyrazolo(5,1-a)isoindol-8-one], Uni-P293 (2,3-dihydro-5-6-diphenyl-1,4-oxathiin), and morphactins and their interaction with GA (gibberellic acid) on the translocation of 2,4,5-T (2,4,5-trichlorophenoxacetic acid) in bean (Phaseolus vulgaris L. ‘Stringless Green-Pod’) seedlings were determined. The growth retardants and GA were either applied as foliar treatments or injected at the cotyledonary node with 2,4,5-T. Foliar pretreatment of bean seedlings with ethephon and ancymidol 2 days before 2,4,5-T treatment inhibited 2,4,5-T translocation to young shoots but did not affect basipetal translocation greatly. These effects were reversed by foliar application of GA 1 day before 2,4,5-T injection. Foliar pretreatment of bean seedlings with DPX 1840 2 days before 2,4,5-T treatment increased 2,4,5-T translocation to young shoots and inhibited basipetal translocation. The effects of DPX1840 were not reversed by GA treatment. When ancymidol, DPX 1840, and morphactins were injected into the stem tissue with 2,4,5-T the acropetal translocation of 2,4,5-T increased and basipetal translocation was decreased by DPX1840 and morphactins. These effects were not reversed by the simultaneous GA injection. Uni-P293 had little effect on 2,4,5-T translocation. Growth retardants other than Uni-P293 appear to inhibit basipetal 2,4,5-T translocation directly. Ethephon and ancymidol may have secondary effects on 2,4,5-T translocation that can be reversed by GA treatment.

Type
Research Article
Information
Weed Science , Volume 25 , Issue 1 , January 1977 , pp. 36 - 40
Copyright
Copyright © 1977 by the Weed Science Society of America 

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References

Literature Cited

1. Basler, E. 1974. Abscisic acid and gibberillic acid as factors in the translocation of auxin. Plant Cell Physiol. 15:351–361.Google Scholar
2. Basu, R.N. 1972. Effect of non-auxin chemicals on translocation of auxins in cuttings of Phaseolus vulgaris (L.). J. Exp. Bot. 23:357–365.Google Scholar
3. Bellandi, D.M. and Dorffling, K. 1974. Effects of abscisic acid and other plant hormones on growth of apical and lateral buds of seedlings. Physiol. Plant. 32:368–372.CrossRefGoogle Scholar
4. Beyer, E.M. 1972. Auxin transport: A new synthetic inhibitor. Plant Physiol. 50:322–327.Google Scholar
5. Bridges, I.G. and Wilkins, M.B. 1973. Effects of morphactin on indol-3yl-acetic acid transport, growth, and geotropic response in cereal coleoptiles. J. Expt. Bot. 24:711–723.CrossRefGoogle Scholar
6. Burg, S.P. and Burg, E.A. 1967. Inhibition of polar auxin transport by ethylene. Plant Physiol. 42:1224–1228.CrossRefGoogle ScholarPubMed
7. Coolbaugh, R.C. and Hamilton, R. 1975. Effects of ancymidol on growth and kaurene metabolism in peas. Plant Physiol. 56: Suppl. Abst. No. 341.Google Scholar
8. Gaither, D.H. and Abeles, F.B. 1975. Sites of auxin action. Regulation of geotropism, growth and ethylene production by inhibitors of auxin transport. Plant Physiol. 56:404–409.Google Scholar
9. Hogetsu, J., Shibaoka, H., Shimokoriyama, M. 1974. Involvement of cellulose synthesis in actions of gibberellin and kinetin on cell expansion. Gibberellin—coumarin and kinetin—coumarin interactions on stem elongation. Plant Cell Physiol. 15:265–272.Google Scholar
10. Keitt, G.W. Jr. and Baker, R.A. 1966. Auxin activity of substituted benzoic acids and their effect on polar auxin transport. Plant Physiol. 41:1561–1569.CrossRefGoogle ScholarPubMed
11. Krelle, E. and Libbert, E. 1967. Inhibition of polar auxin transport by a morphactin. Planta 80:317–320.Google Scholar
12. Lembi, C.A., Morre, D.J., Thomsons, K.S., and Hertel, R. 1971. 1-N-naphthylphthalamic acid (NPA) binding activity of a plasma membrane-rich fraction from maize coleoptiles. Planta 99:37–45.CrossRefGoogle Scholar
13. Leopold, A.C. 1971. Antagonism of some gibberellin actions by a substituted pyrimidine. Plant Physiol. 48:537–540.Google Scholar
14. Lyons, C.J. 1970. Ethylene inhibition of auxin transport by gravity in leaves. Plant Physiol. 45:644–646.CrossRefGoogle Scholar
15. McCready, C.C. 1968. The polarity of auxin movement in segments excised from petioles of Phaseolus vulgaris L. Pages 1005–1023. in Wightman, F. and Setterfield, G., eds. Biochemistry and Physiology of Plant Growth Substances. Runge Press, Ltd. Ottawa.Google Scholar
16. Montague, M.J. 1975. Inhibition of gibberellic acid-induced elongation in Avena stem segments by a substituted pyrimidine. Plant Physiol. 56:167–170.Google Scholar
17. Morgan, D.G. 1964. Influence of 1-N-naphthylphthalamic acid on the movement of indolyl-3-acetic acid in plants. Nature 201:476–377.Google Scholar
18. Morgan, P.W. and Gausman, A.W. 1966. Effects of ethylene on auxin transport. Plant Physiol. 41:45–52.Google Scholar
19. Naqvi, S.M. and Engvild, K.C. 1974. Action of abscisic acid on auxin transport and its relation to phototropism. Physiol. Plant 30:283–287.Google Scholar
20. Parups, E.V. 1970. Effect of morphactin on gravimorphism and the uptake, translocation and spatial distribution of Indol-3yl-acetic acid in plant tissues in relation to light and gravity. Physiol. Plant. 23:1176–1186.CrossRefGoogle Scholar
21. Pilet, P.E. 1965. Polar transport of radioactivity from 14C-labeled-β-indoleacetic acid in stems of Lens culinaris . Physiol. Plant. 18:687–702.Google Scholar
22. Pilet, P.E. 1970. Morphactins, growth and auxin transport. Experimentia 26:608–609.Google Scholar
23. Pilet, P.E. 1971. Abscisic acid action on basipetal auxin transport. Physiol. Plant. 25:28–31.CrossRefGoogle Scholar
24. Thomson, K.S., Hertel, R., Müller, S., and Tavores, J.E. 1973. 1-N-naphthylphthalamic acid and 2,3,5-triiodobenzoic acid: In-vitro binding to particulate cell fractions and action on auxin transport in corn coleoptiles. Planta 109:377–352.Google Scholar
25. Thomson, K.S. and Leopold, A.C. 1974. In-vitro binding of morphactins and 1-N-Naphthylphthalamic acid in corn coleoptiles and their effects on auxin transport. Planta 115:259–270.CrossRefGoogle ScholarPubMed