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Mode of Action and Metabolism of Diquat and Paraquat

Published online by Cambridge University Press:  12 June 2017

H. H. Funderburk Jr.  and
J. M. Lawrence
H. H. Funderburk Jr.
Affiliation:
Auburn University Agricultural Experiment Station, Auburn, Alabama
J. M. Lawrence
Affiliation:
Auburn University Agricultural Experiment Station, Auburn, Alabama
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Abstract

In short-term studies, diquat (6,7-dihydrodipyrido(1,2-a:2’,1′-c) pyrazidiinium salt) and paraquat (1,1′-dimethyl-4,4′-dipyridinium salt) caused a stimulation in respiration and an inhibition in photosynthesis of duckweed (Lemna minor L.). Atrazine (2-chloro-4-ethylamino-6-isopropylamino-s-triazine) and monuron [3-(p-chlorophenyl)-1,1-dimethylurea] caused inhibition of the Hill reaction at rates lower (10-6M) than diquat and paraquat (10-5M), and diquat was considerably more effective than paraquat. The effect of a combination of monuron and diquat on O2 production was additive. Inhibition of the Hill reaction by these dipyridyliums was directly related to their redox potentials. Auto-radiographs of chromatograms and electrochromatograms as well as CO2 studies indicated that neither diquat nor paraquat was degraded in alligatorweed [Alternanthera philoxeriodes (Mart.) Griseb.] and garden, or snap beans (Phaseolus vulgaris L. var. Black Valentine).

Type
Research Article
Information
Weeds , Volume 12 , Issue 4 , October 1964 , pp. 259 - 264
Copyright
Copyright © 1964 Weed Science Society of America 

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References

Literature Cited

1. Amling, H. J., Turner, J. L., and Taylor, T. D. 1963. Preliminary evaluation of two dipyridyl quaternary salts for post-emergent weed control in apple, peach, and pecan plantings. Proc. SWC 16:164.Google Scholar
2. Brian, R. C., Homer, R. F., Stubbs, J., and Jones, R. L. 1958. A new herbicide; 1,1′-ethylene-2,2′-dipyridylium dibromide. Nature, London 181:446.Google Scholar
3. Calderbank, A. 1960. Diquat: A new herbicide and desiccant. Agr. Vet. Chemicals 1:197.Google Scholar
4. Calderbank, A. Morgan, C. B., and Yuen, S. H. 1961. Determination of diquat residues in potato tubers. The Analyst 86:569–579.Google Scholar
5. Calvin, Melvin. 1959. Energy reception and transfer in photosynthesis. Rev. Mod. Phys. 31:147–156.CrossRefGoogle Scholar
6. Calvin, Melvin. 1959. Free radicals in photosynthetic systems. Rev. Mod. Phys. 31:157–161.Google Scholar
7. Commoner, B., Townsend, J., and Pake, G. E. 1954. Free radicals in biological materials. Nature 174:689.Google Scholar
8. Colby, S. R. and Warren, G. F. 1963. Herbicides: Combination enhances selectivity. Science 141:362.Google Scholar
9. Crafts, A. S. and Yamaguchi, S. 1960. Gross autoradiography of solute translocation and distribution in plants. Med. and Biol. Illustration 10:103–109.Google Scholar
10. Cronshey, J. F. H. 1961. A review of experimental work with diquat and related compounds. Weed Res. 1:68–77.Google Scholar
11. Foy, C. L. 1962. Penetration and initial translocation of 2,2-dichloropropionic acid (dalapon) in individual leaves of Zea Mays L. Weeds 10:35–39.CrossRefGoogle Scholar
12. Funderburk, H. H. Jr. and Lawrence, J. M. 1963. Absorption and translocation of radioactive herbicides in submersed and emersed aquatic weeds. Weed Res. 3:304–311.Google Scholar
13. Funderburk, H. H. Jr. and Lawrence, J. M. 1962. A sensitive bioassay for two bipyridyl quaternary salts. Prog. Rep. Series No. 83. Agr. Expt. Station, Auburn Univ. Google Scholar
14. Funderburk, H. H. Jr. and Lawrence, J. M. 1963. A sensitive method for determination of low concentrations of diquat and paraquat. Nature 199:1011–1012.CrossRefGoogle Scholar
15. Funderburk, H. H. Jr. and Davis, D. E. 1963. The metabolism of C14 chain-and ring-labeled simazine by corn and the effect of atrazine on plant respiratory systems. Weeds 11:101–104.CrossRefGoogle Scholar
16. Good, N. E. 1961. Inhibitors of the Hill reaction. Plant Physiol. 36:788–803.CrossRefGoogle ScholarPubMed
17. Good, N. E. 1962. Inhibitors of photosynthesis as herbicides. World Review of Pest Control 1:19–28.Google Scholar
18. Gunn, J. S. and Tatham, P. B. 1961. Diquat as an arboricide. Nature 189:808–809.CrossRefGoogle Scholar
19. Hoagland, D. R. and Arnon, D. I. 1950. The water culture method for growing plants without soil. California Agric. Exp. Sta. Circular 347.Google Scholar
20. Homer, R. F., Mees, G. C., and Tomlinson, T. E. 1960. Mode of action of dipyridyl quaternary salts as herbicides. J. Sci. Food Agr. 6:309–315.Google Scholar
21. Homer, R. F. and Tomlinson, T. E. 1959. Redox properties of some dipyridyl quaternary salts. Nature 184:2012–2013.Google Scholar
22. Homer, R. F. and Tomlinson, T. E. 1960. The stereochemistry of the bridged quaternary salts of 2,2′-bipyridyl. J. Amer. Chem. Soc. 504:2498–2503.Google Scholar
23. Jagendorf, A. T. and Margulies, M. 1960. Inhibition of spinach chloroplast photosynthetic reactions by p-chlorophenyl-1,1-dimethylurea. Arch. Biochem. and Biophys. 90:184–195.Google Scholar
24. Lawrence, J. M., Funderburk, H. H. Jr., Blackburn, R. D., and Beasley, P. G. 1962. The status of diquat and paraquat as aquatic herbicides. 16th Proc. Southeastern Assoc. Game and Fish Comm. (In press).Google Scholar
25. Lawrence, J. M., Beasley, P. G., and Funderburk, H. H. Jr. 1963. Water quality in plastic pools, containing aquatic plants, before and after treatments with bipyridylium compounds. (Abstract) Proc. SWC 16:366–367.Google Scholar
26. Mees, G. C. 1960. Experiments on the herbicidal action of 1,1′-ethylene-2,2′-dipyridylium dibromide. Ann. Appl. Biol. 48:601–612.CrossRefGoogle Scholar
27. Michaelis, L. and Hill, E. S. 1933. The viologen indicators. J. Gen. Physiol. 16:859.CrossRefGoogle ScholarPubMed
28. Moreland, D. E., Gentner, W. A., Hilton, J. L., and Hill, K. L. 1959. Studies on the mechanism of herbicidal action of 2-chloro-4,6-bis (ethylamino)-s-triazine. Plant Physiol. 34:432–435.CrossRefGoogle ScholarPubMed
29. Müller, A. and Zimmer, K. G. 1961. Studies on radiation-produced free radicals in biological systems, pp. 325–335. In: Free radicals in biological systems. Academic Press, New York.Google Scholar
30. van Overbeek, J. 1962. Physiological responses of plants to herbicides. Weeds 10:170–174.CrossRefGoogle Scholar
31. Zweig, G., Tamas, I., and Greenberg, E. 1963. The effect of photosynthesis inhibitors on oxygen evolution and fluorescence of illuminated Chlorella . Biochem. Biophys. Acta 66:196–205.Google Scholar