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The Decarboxylation of Phenoxyacetic Acid Herbicides by Excised Leaves of Woody Plants

Published online by Cambridge University Press:  12 June 2017

Eddie Basler
Eddie Basler*
Affiliation:
Department of Botany and Plant Pathology, Oklahoma Agr. Exp. Sta., Stillwater, Oklahoma
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Abstract

The rates of decarboxylation of 2,4-dichlorophenoxyacetic acid (2,4-D), 2-chloro-4-fluorophenoxyacetic acid and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) in excised leaves of blackjack oak (Quercus marilandica Muenchh,) were determined by collecting the C14O2 evolved from carboxyl-labeled herbicides. 2,4,5-T was decarboxylated only in trace amounts. 2,4-D was decarboxylated to a maximum of about 1 per cent and 2-chloro-4-fluorophenoxyacetic acid of about 7 per cent, of the amounts taken up by the leaf. Decarboxylation rates for 2,4-D in June were highest in persimmon (Diospryos virginiana L.) and blackjack oak, and were very low in winged elm (Ulmus alata Michx.), sweet gum (Liquidambar styraciflua L.), and green ash (Fraxinus pennsylvanica Marsh.). The rates of decarboxylation of 2,4-D apparently were not correlated with susceptibility to 2,4-D.

Type
Research Article
Information
Weeds , Volume 12 , Issue 1 , January 1964 , pp. 14 - 16
Copyright
Copyright © 1964 Weed Science Society of America 

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References

Literature Cited

1. Bach, M. K. and Fellig, J. 1961. Correlation between inactivation of 2,4-dichlorophenoxyacetic acid and cessation of callus growth in bean stem sections. Plant Physiol. 36:89–91.Google Scholar
2. Edgerton, L. J., and Hoffman, M. B. 1961. Fluorine substitution affects decarboxylation of 2,4-dichlorophenoxyacetic acid in apple. Science 134:341–342.Google Scholar
3. Elwell, H. M. 1960. Land improvement through brush control. Soil Conservation 26:56–59.Google Scholar
4. Holley, R. W., Boyle, F. P. and Hand, D. B. 1950. Studies of the fate of radioactive 2,4-dichlorophenoxyacetic acid in bean plants. Arch. Biochem. 27:143–151.Google Scholar
5. Luckwill, E. C., and Lloyd-Jones, C. P. 1960. Metabolism of plant growth regulators I. 2,4-dichlorophenoxyacetic acid in leaves of red and black currant. Ann. Appl. Biol. 48:613–625.Google Scholar
6. Luckwill, E. C., and Lloyd-Jones, C. P. 1960. Metabolism of plant growth regulators II. Decarboxylation of 2,4-dichlorophenoxyacetic acid in leaves of apple and strawberry. Ann. Appl. Biol. 48:625–636.Google Scholar
7. Slife, F. W., Key, J. L., Yamaguchi, S. and Crafts, A. S. 1962. Penetration, translocation, and metabolism of 2,4-D and 2,4,5-T in wild and cultivated cucumber plants. Weeds 10:29–35.Google Scholar
8. U. S. Department of Agriculture. 1961. Chemical control of brush and trees. Farmers' Bull. No. 2158.Google Scholar
9. Weintraub, R. L., Brown, J. W., Fields, M. and Rohan, J. 1952. Metabolism of 2,4-D. I. C14O2 production by bean plants treated with labeled 2,4-D acids. Plant Physiol. 27:293–301.Google Scholar