biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 16:255-261, 1974 | DOI: 10.1007/BF02921235

Reversal of auxin induced inhibition by ethrel

J. Hradilík1
1 Department of General and Special Agricultural Botany, University of Agriculture, Brno

The interaction between exogenous 2-chloroethylphosphonic acid (Ethrel, CEPA) and auxin (both native and synthetic-IAA) was studied on pea and bean seedlings, potato tubers, and processed flax plants. After the addition of ethrel the inhibiting effect of IAA was decreased in all objects and it was found that the concentration of the growth of the regulators played an important role. The growth response of a part of flax hypocotyl, as induced by exogenous auxin produced in the cotyledon, was reversed by ethrel, too. The application of ethrel on the epicotyl apex in beans resulted in the lost of apical dominance of epicotyl and in the growth of lateral buds together with the epicotyl. When stimulating the growth, ethrel reverses the inhibitions through the decrease in the auxin content (from an inhibiting, supraoptimum level to an optimum one which already stimulates growth). In objects with a low content of endogenous auxin the ethrel induced the decrease in the auxin content and shows an inhibiting effect on growth.

Received: April 19, 1973; Published: July 1, 1974  Show citation

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Hradilík, J. (1974). Reversal of auxin induced inhibition by ethrel. Biologia plantarum, 16(4), 255-261. doi: 10.1007/BF02921235
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    References

    1. Dostál, R.: Correlative curvatures of theLinum hypocotyls and growth regulators.-Beitr. Biol. Pflanzen45: 257-270, 1968.
    2. Edgerton, L. J., Blanpied, G. D.: Regulation of growth and fruit maturation with 2-chloroethylphosphonic acid.-Nature219: 1065, 1968. Go to original source...
    3. Hradilík, J.: Studies on the physiological effect of morphoregulator ethrel on some plants. V. Study on the effect of kinetin (6-furfurylaminopurine) and ethrel (2-chloroethylphosphonic acid) on dormancy of potato (Solanum tuberosum L.) tubers. Acta Univ. Agric. (Brno)-Fac. Agroecon.9: 205-220, 1973a.
    4. Hradilík, J.: Effect of ethrel (2-chloroethylphosphonic acid) on correlations between cotyledon and cotylar in pea (Pisum sativum L.) and flax (Linum usitatissimum L.). In: Mezinárodní konference o regulátorech rostlinného růstu. Liblice 11-16 Sept., 1972.
    5. Hradilík, J.: Effect of ethrel (2-chloroethylphosphonic acid) on correlations between cotyledon and cotylar in pea (Pisum sativum L.) and flax (Linum usitatissimum L.).-Rostlinná Výroba (Praha)19: 891-904, 1973.
    6. Hradilík, J.: Inhibitory effect of ethrel (2-chloroethylphophonic acid) on growth of radish (Raphanus sativus var.radicula Pers.) cotyledons as induced by 6-benzylaminopurine.-Acta Univ. Agric. (Brno), Fac. Agroecon.10: 93-95, 1974.
    7. Hradilík, J.: Studies on the physiological effect of morphoregulator ethrel on some plants. I. Study on the effect of ethrel (2-chloroethylphosphonic acid) and its interactions with gibberellin in lettuce seedlings (Lactuca sativa L.).-Acta Univ. Agric. (Brno), Fac. Agroecon.8: 361-372, 1972a.
    8. Iyer, C. P. A., Chacko, E. K., Subramaniam, M. P.: Ethrel for breaking dormancy of strawberry seeds.-Curr. Sci.12: 271-272, 1970.
    9. Mitchell, J., Livingston, G. A.: Methods of studying plant hormones and growth regulating substances.-Agr. Handbook336: 1-140, 1968.
    10. Obhlídalová, L., Hradilík, J.: The effect of ethrel (2-chloroethylphosphonic acid) and kinetin (6-furfurylaminopurine) on the domancy of barley kernels.-Rostlinná Výroba (Praha)19: 905-910, 1973.
    11. Pratt, H. K., Goeschl, G. D.: Physiological rôles of ethylene in plants.-Annu. Rev. Plant Physiol.20: 541-548, 1969. Go to original source...
    12. Sankhla, N., Shukla, S. N.: Observations on hypocotyl coiling: effect of ethrel and gibberellin on seedling growth ofPhaseolus radiatus.-Z. Pflanzenphysiol.63: 284-287, 1970.
    13. Sankhla, N., Sankhla, D.: Lettuce seed germination: Interaction between auxin and 2-chloroethanephosphonic acid (ethrel).-Biol. Plant.14: 321-324, 1972. Go to original source...
    14. ©ebánek, J.: The effect of exogenous gibberellin and auxin on the dominance between the axillary buds of pea (Pisum sativum L.) cotyledons.-Biol. Plant.14: 337-342, 1972. Go to original source...
    15. Thimann, K. V., Skoog, F.: Studies on the growth hormones in plants. III. The inhibiting action of growth substances on bud development.-Proc. Nat. Acad. Sci. USA19: 714-716, 1933. Go to original source...
    16. Thimann, K. V., Skoog, F.: On the inhibition of bud development and other functions of growth substances inVicia faba.-Proc. roy. Soc. LondonB 114: 317-339, 1934. Go to original source...
    17. Yang, S. F.: Ethylene evolution from 2-chloroethylphosphonic acid.-Plant Physiol.44: 1203 to 1204, 1969. Go to original source...

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