Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-22T20:25:28.387Z Has data issue: false hasContentIssue false
  • English
  • Français

A Comparison between Glyphosate and Assimilate Translocation Patterns in Tall Morningglory (Ipomoea purpurea)

Published online by Cambridge University Press:  12 June 2017

Steven A. Dewey  and
Arnold P. Appleby
Steven A. Dewey
Affiliation:
Dep. Crop Sci., Oregon State Univ., Corvallis, OR 97331
Arnold P. Appleby
Affiliation:
Dep. Crop Sci., Oregon State Univ., Corvallis, OR 97331
Get access Rights & Permissions [Opens in a new window]

Abstract

Translocation of 14C-glyphosate [N-(phosphonomethyl) glycine] in tall morningglory [Ipomoea purpurea (L.) Roth., ‘Heavenly Blue’] was compared with movement of 14C-photosynthate. The flow of photosynthate was manipulated by creating assimilate sinks in mature leaves and cotyledons using combinations of stem girdling, leaf shading, and localized cytokinin application. Comparisons of 14C distribution patterns indicated minor differences between glyphosate and assimilate sink partitioning when 14C-glyphosate or 14CO2 were applied to a single leaf. Labeled glyphosate moved upward through stem girdles in greater proportions than 14C from photosynthate, suggesting a greater capacity for glyphosate to transfer from symplast to apoplast. When 14C-glyphosate was applied to the stem, 14C still moved symplastically to natural and artificial sinks, but apoplastic movement into all transpiring tissues above the site of application greatly increased. Results support the classification of glyphosate as an ambimobile rather than a phloem-mobile herbicide.

Keywords

Ipomoea purpureasymplastapoplastartificial sinkambimobile
Type
Research Article
Information
Weed Science , Volume 31 , Issue 3 , May 1983 , pp. 308 - 314
Copyright
Copyright © 1983 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. Ahmadi, M. S., Haderlie, L. C., and Wicks, G. A. 1980. Effect of growth stage and water stress on barnyardgrass (Echinochloa crus-galli) control and on glyphosate absorption and translocation. Weed Sci. 28:277–282.CrossRefGoogle Scholar
2. Crafts, A. S. and Crisp, C. E. 1971. Phloem Transport in Plants. Kennedy, D. and Park, R. B., eds. W. H. Freeman and Company, San Francisco. 481.Google Scholar
3. Crafts, A. S. and Yamaguchi, S. 1964. The autoradiography of plant materials. Calif. Agric. Exp. Stn. Ext. Serv. Man. 35. 143.Google Scholar
4. Gottrup, O., O'Sullivan, P. A., Schraa, R. J., and Vanden Born, W. H. 1976. Uptake, translocation, metabolism, and selectivity of glyphosate. Weed Res. 16:197–201.CrossRefGoogle Scholar
5. Jordan, T. N. 1977. Effects of temperature and relative humidity on the toxicity of glyphosate to bermudagrass (Cynodon dactylon). Weed Sci. 25:448–451.CrossRefGoogle Scholar
6. Kells, J. J. and Rieck, C. E. 1979. Effects of illuminance and time on accumulation of glyphosate in johnsongrass (Sorghum halepense). Weed Sci. 27:235–237.Google Scholar
7. Marquis, L. Y., Comes, R. D., and Yang, C. P. 1979. Selectivity of glyphosate in creeping red fescue and reed canarygrass. Weed Res. 19:335–342.Google Scholar
8. Richard, E. P. Jr. and Slife, F. W. 1979. In vivo and in vitro characterization of the foliar entry of glyphosate in hemp dogbane (Apocynum cannabinum). Weed Sci. 27:426–433.Google Scholar
9. Rioux, R., Bandeen, J. D., and Anderson, G. W. 1974. Effects of growth stage on translocation of glyphosate in quackgrass. Can. J. Plant Sci. 54:397–401.Google Scholar
10. Sandberg, C. L., Meggitt, W. F., and Penner, D. 1980. Absorption, translocation and metabolism of 14C-glyphosate in several weed species. Weed Res. 20:195–200.CrossRefGoogle Scholar
11. Schultz, M. E. and Burnside, O. C. 1980. Absorption, translocation, and metabolism of 2,4-D and glyphosate in hemp dogbane (Apocynum cannabinum). Weed Sci. 28:13–20.Google Scholar
12. Segura, J., Bingham, S. W., and Foy, C. L. 1978. Phytotoxicity of glyphosate to Italian ryegrass (Lolium multiflorum) and red clover (Trifolium pratense). Weed Sci. 26:32–36.Google Scholar
13. Shaner, D. L. and Lyon, J. L. 1980. Interaction of glyphosate with aromatic amino acids on transpiration in Phaseolus vulgaris Weed Sci. 28:31–35.CrossRefGoogle Scholar
14. Sprankle, P., Meggitt, W. F., and Penner, D. 1975. Absorption, action, and translocation of glyphosate. Weed Sci. 23:235–240.Google Scholar
15. Whitwell, T., Banks, P., Basler, E., and Santelmann, P. W. 1980. Glyphosate absorption and translocation in bermudagrass (Cynodon dactylon) and activity in horsenettle (Solanum carolinense). Weed Sci. 28:93–96.Google Scholar
16. Wills, G. D. 1978. Factors affecting toxicity and translocation of glyphosate in cotton (Gossypium hirsutum). Weed Sci. 26:509–513.Google Scholar
17. Wyrill, J. B. III and Burnside, O. C. 1976. Absorption, translocation and metabolism of 2,4-D and glyphosate in common milkweed and hemp dogbane. Weed Sci. 24:557–566.Google Scholar
18. Zandstra, B. H. and Nishimoto, R. K. 1977. Movement and activity of glyphosate in purple nutsedge. Weed Sci. 25:268–274.Google Scholar