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Translocation and Degradation of Bromoxynil in a Resistant and a Susceptible Species

Published online by Cambridge University Press:  12 June 2017

D. E. Schafer  and
D. O. Chilcote
D. E. Schafer
Affiliation:
Department of Farm Crops, Oregon State University, Corvallis, Oregon
D. O. Chilcote
Affiliation:
Department of Farm Crops, Oregon State University, Corvallis, Oregon
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Abstract

The relation of translocation and degradation to selectivity of 3,5-dibromo-4-hydroxybenzonitrile (bromoxynil) in winter wheat (Triticum aestivum L., var. Nugaines), a resistant species, and coast fiddleneck (Amsinckia intermedia Fisch. & Mey.), a susceptible species, was examined. Radioautographic and extraction analysis revealed that the label from 14C-bromoxynil was more mobile in coast fiddleneck than in wheat. Higher levels of soluble radioactivity were found in extracts of coast fiddleneck than wheat. Higher levels of insoluble label were found in tissue residues of wheat than coast fiddleneck. In both species, most of the activity remained in treated leaves. A high percentage of the soluble activity was attributed to 14C-bromoxynil in both wheat and coast fiddleneck. The evolution of 14CO2 by wheat treated with 14C-bromoxynil significantly exceeded that of coast fiddleneck. The difference in susceptibility between winter wheat and coast fiddleneck appears to be explained partly by differential translocation and degradation of bromoxynil.

Type
Research Article
Information
Weed Science , Volume 18 , Issue 6 , November 1970 , pp. 729 - 732
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

1. Carpenter, K., Cottrell, H. J., DeSilva, W. H., Heywood, B. J., Leeds, W. G., Rivett, K. F., and Soundy, M. L. 1964. Chemical and biological properties of two new herbicides—ioxynil and bromoxynil. Weed Res. 4:175–195.Google Scholar
2. Carpenter, K., Cottrell, H. J., Heywood, B. J., and Leeds, W. G. 1964. Herbicidal activity of halogenohydroxybenzonitriles. Sixteenth Int. Symp. on Crop Protection, Ghent. p. 644–653.Google Scholar
3. Davies, P. J., Drennan, D. S. H., Fryer, J. D., and Holly, K. 1968. The basis of the differential phytotoxicity of 4-hydroxy-3,5-di-iodobenzonitrile. II. Uptake and translocation. Weed Res. 8:233–240.Google Scholar
4. Davies, P. J., Drennan, D. S. H., Fryer, J. D., and Holly, K. 1968. The basis of the differential phytotoxicity of 4-hydroxy-3,5-di-iodobenzonitrile. III. Selectivity factors within plant tissues. Weed Res. 8:241–252.CrossRefGoogle Scholar
5. Foy, C. L. 1964. Ioxynil, a new weed killer for use in cereal grains. Proc. Ann. Calif. Weed Conf. 16:90–98.Google Scholar
6. Hart, R. D., Bishop, J. R., and Cooke, A. R. 1964. Discovery of ioxynil and its development in the United States. British Weed Contr. Conf. Proc. 7:3–9.Google Scholar
7. Heywood, B. J. 1966. Hydroxybenzonitrile herbicides. Chem. and Ind. 1966. p. 1946–1952.Google Scholar
8. Heywood, B. J., Carpenter, K., and Cottrell, H. J. 19 A summary of the chemical and physical properties of ioxynil and bromoxynil. British Weed Contr. Conf. Proc. 7:10–19.Google Scholar
9. Ott, D. G., Richmond, C. R., Trujillo, T. T., and Foreman, H. 1959. Cab-O-Sil suspensions for liquid scintillation counting. Nucleonics 17:106–108.Google Scholar
10. Schafer, D. E. and Chilcote, D. O. 1970. Selectivity of bromoxynil in a resistant and a susceptible species. Weed Sci. 18: (In press).Google Scholar
11. Zaki, M. A., Taylor, H. F., and Wain, R. L. 1967. Studies with 3,5-diiodo-4-hydroxybenzonitrile and related compounds in soils and plants. Ann. of Appl. Biol. 59:481–491.Google Scholar