Hostname: page-component-76fb5796d-x4r87 Total loading time: 0 Render date: 2024-04-29T13:26:15.540Z Has data issue: false hasContentIssue false
  • English
  • Français

Diphenamid Metabolism in Tomato: Time Course of an Ozone Fumigation Effect

Published online by Cambridge University Press:  12 June 2017

Richard H. Hodgson ,
Kendall E. Dusbabek  and
Barry L. Hoffer
Richard H. Hodgson
Affiliation:
Metabolism and Radiation Res. Lab., N. Centr. Reg., Agr. Res. Serv., U.S. Dep. of Agr., Fargo, ND 58102
Kendall E. Dusbabek
Affiliation:
Metabolism and Radiation Res. Lab., N. Centr. Reg., Agr. Res. Serv., U.S. Dep. of Agr., Fargo, ND 58102
Barry L. Hoffer
Affiliation:
Metabolism and Radiation Res. Lab., N. Centr. Reg., Agr. Res. Serv., U.S. Dep. of Agr., Fargo, ND 58102
Get access Rights & Permissions [Opens in a new window]

Abstract

The time course of diphenamid (N,N-dimethyl-2,2-diphenylacetamide) metabolism in tomato (Lycopersicon esculentum Mill. ‘Sheyenne’) was altered by fumigation with 30 pphm (parts per hundred million) of O3. After 2 days 70% of the absorbed diphenamid was metabolized in controls compared with 83% in fumigated plants. Concentrations of N-methyl-2,2-diphenylacetamide (MMDA) were equivalent in both fumigated and control plants. Less glucoside conjugate (MDAG) was present in fumigated plants 2 to 4 days after treatment than in the control plants. Gentiobioside conjugate (MDAGB) increased rapidly in fumigated plants after 0.5 day but not in control plants until after 2 days. Loss of diphenamid from aerated solution was demonstrated. A scheme for diphenamid metabolism is proposed.

Type
Research Article
Information
Weed Science , Volume 22 , Issue 3 , May 1974 , pp. 205 - 210
Copyright
Copyright © 1974 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Blankendaal, M., Hodgson, R.H., Davis, D.G., Hoerauf, R.A., and Shimabukuro, R.H. 1972. Growing plants without soil for experimental use. U.S. Dep. Agr., Agr. Res. Serv., Misc. Publ. 1251. 17 pp.Google Scholar
2. Carney, A.W., Stephenson, G.R., Ormrod, D.P., and Ashton, G.C. 1973. Ozone-herbicide interactions in crop plants. Weed Sci. 21:508–511.Google Scholar
3. Dugger, W.M. and Ting, I.P. 1970. Physiological and biochemical effect of air pollution oxidants on plants. Recent Advan. Phytochem. 3:31–58.Google Scholar
4. Dugger, W.M. and Ting, I.P. 1970. Air pollution oxidants–their effects on metabolic processes in plants. Annu. Rev. Plant Physiol. 21:215–234.Google Scholar
5. Frear, D.S., Swanson, H.R., and Tanaka, F.S. 1969. N-Demethylation of substituted 3-(phenyl)-1-methylureas: Isolation and characterization of a microsomal mixed function oxidase from cotton. Phytochemistry 8:2157–2169.Google Scholar
6. Hodgson, R.H., Frear, D.S., Swanson, H.R., and Regan, L.A. 1973. Alteration of diphenamid metabolism in tomato by ozone. Weed Sci. 21:542–549.Google Scholar
7. McMahon, R.E. and Sullivan, H.R. 1965. The metabolism of the herbicide diphenamid in rats. Biochem. Pharmacol. 14:1085–1092.Google Scholar
8. Miller, L.P. 1973. Glycosides. Pages 297–375 in Miller, L.P., Ed., Phytochemistry. I. The process and products of photosynthesis. Van Nostrand Reinhold Co., N.Y. Google Scholar
9. Schultz, D.P. and Tweedy, B.G. 1971. Uptake and transport of N,N-dimethyl-2,2-diphenylacetamide in resistant and susceptible plants. J. Agr. Food Chem. 19:36–40.Google Scholar
10. Towers, G.H.N. 1964. Metabolism of phenolics in higher plants and micro-organisms. Page 265 in Harborne, J. B., Ed., Biochemistry of phenolic compounds, Academic Press, N.Y. Google Scholar