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Absorption and translocation of glyphosate in Erythroxylum coca and E. novogranatense

Published online by Cambridge University Press:  20 January 2017

Jorge F. S. Ferreira  and
Krishna N. Reddy
Jorge F. S. Ferreira
Affiliation:
USDA-ARS Southern Weed Science Research Unit, P.O. Box 350, Stoneville, MS 38776-0350
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Abstract

Absorption and translocation of 14C-glyphosate was studied in greenhouse-grown Erythroxylum coca and E. novogranatense. Autoradiography indicated that translocation patterns were similar for both species and that E. novogranatense absorbed and translocated more glyphosate than E. coca. In both young and mature plants, absorption of leaf-applied 14C-glyphosate increased with increased exposure time, and 288 h after application, absorption was higher in E. novogranatense (79 and 52% of applied, respectively) compared with E. coca (60 and 14% of applied, respectively). Similarly, translocation of 14C-glyphosate increased with time in both species. In mature plants, after 288 h more 14C-glyphosate translocated in E. novogranatense (6.9% of applied) than E. coca (2.5%), but the opposite occurred in young plants. Most of the radioactivity translocated from the treated leaf accumulated in the main stems and roots of both species with little accumulation in tissues above the treated leaf. However, most of the applied radioactivity remained in the treated leaf regardless of growth stage and species. The absorption of 14C-glyphosate in young and mature plants of E. coca was 1.3 and 3.6 times lower, respectively, than in E. novogranatense 288 h after treatment. Differences in absorption and translocation of glyphosate in E. coca and E. novogranatense may partially explain the reported differential response to glyphosate.

Keywords

GlyphosateErythroxylum coca var. coca Lam.E. novogranatense var. novogranatense (Morris) HieronCoca plantserythroxylaceaeillicit cropsnarcotic plants
Type
Research Article
Information
Weed Science , Volume 48 , Issue 2 , April 2000 , pp. 193 - 199
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Alvarez, E. 1990. Reasons for the expansion of coca exports in Peru. Pages 67–79 In Congressional Research Service, ed. Cocaine Production, Eradication, and the Environment: Policy, Impact, and Options. Washington, D.C.: U.S. Government Printing Office.Google Scholar
Bariuan, J. V., Reddy, K. N., and Wills, G. D. 1999. Glyphosate injury, rainfastness, absorption, and translocation in purple nutsedge (Cyperus rotundus). Weed Technol. 13:112–119.Google Scholar
Bromilow, R. H., Chamberlain, K., Tench, A. J., and Williams, R. H. 1993. Phloem translocation of strong acids—glyphosate, substituted phosphonic and sulfonic acids—in Ricinus communis . Pestic. Sci. 37:39–47.Google Scholar
Devine, M. D., Bandeen, J. D., and McKersie, B. D. 1983. Temperature effects on glyphosate absorption, translocation, and distribution in quackgrass (Agropyron repens). Weed Sci. 31:461–464.Google Scholar
Duke, S. O. 1988. Glyphosate. Pages 1–70 In Herbicides: Chemistry, Degradation, and Mode of Action. Kearney, P. C. and Kaufman, D. D., eds. New York: Marcel Dekker.Google Scholar
Franz, J. E., Mao, M. K., and Sikorski, J. A. 1997. Glyphosate: A Unique Global Herbicide. Washington, D.C.: American Chemical Society. 653 p.Google Scholar
Ferreira, J.F.S., Smeda, R. J., and Duke, S. O. 1997. Control of coca plants (Erythroxylum coca and E. novogranatense) with glyphosate. Weed Sci. 45:551–556.CrossRefGoogle Scholar
McWhorter, C. G., Jordan, T. N., and Wills, G. D. 1980. Translocation of 14C-glyphosate in soybeans (Glycine max) and johnsongrass (Sorghum halepense). Weed Sci. 28:113–118.Google Scholar
McWhorter, C. and Ouzts, C. 1994. Leaf surface morphology of Erythroxylum sp. and droplet spread. Weed Sci. 42:18–26.Google Scholar
Plowman, T. 1979. Botanical perspectives on coca. J. Psychedelic Drugs. 11:103–117.Google Scholar
Rerat, C., Sauvain, M., Rop, P. P., Ruiz, E., Bresson, M., and Viala, A. 1997. Liquid chromatographic analysis of cocaine and benzoylecgonine in plasma of traditional coca chewers from Bolivia during exercise. J. Ethnopharm. 56:173–178.Google Scholar
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.Google Scholar
Valera-Gil, A. and García-Torres, L. 1994. Absorption and translocation of carbon 14-glyphosate applied to olive tree suckers. J. Amer. Soc. Hort. Sci. 119:1020–1023.Google Scholar
Wills, G. D. 1978. Factors affecting toxicity and translocation of glyphosate in cotton (Gossypium hirsutum). Weed Sci. 26:509–513.Google Scholar
Wills, G. D. and McWhorter, C. G. 1985. Effect of inorganic salts on the toxicity and translocation of glyphosate and MSMA in purple nutsedge (Cyperus rotundus). Weed Sci. 33:755–761.Google Scholar
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