Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-22T19:50:54.507Z Has data issue: false hasContentIssue false
  • English
  • Français

The Mode of Action of Pronamide

Published online by Cambridge University Press:  12 June 2017

W. C. Carlson ,
E. M. Lignowski  and
H. J. Hopen
W. C. Carlson
Affiliation:
Univ. of Illinois, Urbana, Champaign, IL 61801 Field Res. Rep. for Chemagro Div. of Baychem Corp. at Monticello, IL 61856
E. M. Lignowski
Affiliation:
Univ. of Illinois, Urbana, Champaign, IL 61801 Mercyhurst College, Erie, PA 16501
H. J. Hopen
Affiliation:
Univ. of Illinois, Urbana, Champaign, IL 61801
Get access Rights & Permissions [Opens in a new window]

Abstract

Pronamide [3,5-dichloro-N-(1,1-dimethyl-2-propynyl)benzamide] inhibited root and shoot growth, but had little effect on the germination of oat (Avena sativa L.) or cucumber (Cucumis sativus L.), and sprouting of quackgrass [Agropyron repens (L.) Beauv.] buds. Root growth was more sensitive than shoot growth. Pronamide decreased the longitudinal growth rate and caused radial enlargement in the elongation region of the roots of oat seedlings within 4 hr. Dry weights of the swollen root tips increased 6% over the controls after 4 hr. Pronamide stopped the growth of established oat plants within 24 hr when added to nutrient culture medium. It caused a slight increase in 86Rb uptake by excised oat roots. Pronamide stopped normal mitosis in treated oat roots within 0.5 hr. Examination of treated root tips under a microscope showed numerous cells in arrested metaphase, c-pairs, multinucleate cells, polyploidy and swollen and misshapen nuclei. Incorporation of 14C-glucose into oat root cell walls and 14C-leucine into protein were increased by 26 and 20% respectively, following 4-hr incubations in pronamide. The primary mode of action of pronamide is mitotic poisoning.

Type
Research Article
Information
Weed Science , Volume 23 , Issue 2 , March 1975 , pp. 155 - 161
Copyright
Copyright © 1975 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. Bartels, P.G. and Hilton, J.L. 1974. Comparison of herbicides and colchicine treatments on microtubules. Abstr., Weed Sci. Soc. Amer., No. 205.Google Scholar
2. Bayer, D.E., Foy, C.L., Mallory, T.E. and Cutter, E.G. 1967. Morphological and histological effects of trifluralin on root development. Amer. J. Bot. 54:945–952.Google Scholar
3. Carlson, W.C., Lignowski, E.M. and Hopen, H.J. 1974. Uptake, translocation and adsorption of pronamide. Weed Sci. 22:253–258.Google Scholar
4. Desai, R.D. and Smith, L.W. 1971. Effect of N-(1,1-dimethylpropyl)-3,5-dichlorobenzamide on RNA, protein and cellulase in wheat and lettuce roots. Abstr., Weed Sci. Soc. Amer., No. 206.Google Scholar
5. Eigsti, O.J. and Dustin, P. Jr. 1955. Colchicine-In agriculture, medicine, biology and chemistry. The Iowa State College Press, Ames, Iowa. 470 pp.CrossRefGoogle Scholar
6. Izhar, S., Bevington, J.M. and Curtis, R.W. 1969. Effect of malformin on root growth. Plant Cell Physiol. 10:687–698.Google Scholar
7. Johansen, D.A. 1940. Plant microtechnique. McGraw-Hill Book Company, Inc., New York and London. 523 pp.Google Scholar
8. Johnson, B.G. and Buchholtz, K.P. 1961. An in vitro method of evaluating the activity of buds on rhizomes of quackgrass (Agropyron repens). Weeds 9:600–606.CrossRefGoogle Scholar
9. Leggett, J.E. 1968. Salt absorption by plants. Annu. Rev. Plant Physiol. 19:333–346.Google Scholar
10. Levan, A. 1938. The effect of colchicine on root mitosis in Allium . Hereditas 24:471–486.CrossRefGoogle Scholar
11. Lignowski, E.M. and Scott, E.G. 1972. Effect of trifluralin on mitosis. Weed Sci. 20:267–270.Google Scholar
12. Lignowski, E.M. and Scott, E.G. 1971. Trifluralin and root growth. Plant Cell Physiol. 12:701–708.Google Scholar
13. Peterson, R.L. and Smith, L.W. 1971. Effects of N-(1,1-dimethylpropynyl)- 3,5-dichlorobenzamide on the anatomy of Agropyron repens (L.) Beauv. Weed Res. 11:84–87.Google Scholar
14. Schultz, D.P., Funderburk, H.H. Jr., and Negi, N.S. 1968. Effect of trifluralin on growth, morphology and nucleic acid synthesis. Plant Physiol. 43:265–273.Google Scholar
15. Smith, L.W., Peterson, R.L. and Horton, R.F. 1971. Effects of a dimethylpropynyl benzamide herbicide on quackgrass rhizomes. Weed Sci. 19:174–177.Google Scholar