Hostname: page-component-7479d7b7d-t6hkb Total loading time: 0 Render date: 2024-07-14T02:34:19.930Z Has data issue: false hasContentIssue false

Correlation of Leaf Damage with Uptake and Translocation of Glyphosate in Velvetleaf (Abutilon theophrasti)

Published online by Cambridge University Press:  12 June 2017

Paul C. C. Feng
Affiliation:
Agricultural Sector, Monsanto Company GG5G, St. Louis, MO, 63198
Jan S. Ryerse
Affiliation:
Department of Pathology, St. Louis University Health Sciences Center, St. Louis, MO 63104
R. Douglas Sammons
Affiliation:
Agricultural Sector, Monsanto Company GG5G, St. Louis, MO 63198

Abstract

Uptake and translocation of glyphosate in three commercial formulations were examined in velvetleaf, a dicotyledonous weed that is commonly treated with glyphosate. The formulations included Roundup® (MON 35085), Roundup Ultra, and Touchdown® as sold in Canada. A minimal amount of 14C-glyphosate was spiked into a lethal rate of each formulation, and the short-term (3 to 72 h) uptake into the treated leaf and subsequent translocation into the plant were measured. Time-course studies showed very rapid uptake and translocation of glyphosate in the Ultra formulation. In comparison, the uptake and translocation of glyphosate in Touchdown was much slower but continued throughout the 72-h period. Glyphosate in the Roundup formulation showed intermediate uptake and translocation. Tissue necrosis at the application sites of Ultra and Roundup was visible within 24 h after treatment. Examinations using stereo and fluorescence microscopy revealed extensive cell death and tissue disruption. Tissue necrosis from Ultra and Roundup was also observed in blank formulations containing no glyphosate and therefore was likely caused by the surfactants. In contrast, the application sites of Touchdown produced little to no leaf damage. Our results demonstrated a direct correlation between tissue necrosis and rapid rates of glyphosate uptake and translocation.

Type
Research
Copyright
Copyright © 1998 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

Ambach, R. M. and Ashford, R. 1982. Effects of variations in drop makeup on the phytotoxicity of glyphosate. Weed Sci. 30:221224.Google Scholar
Baur, P. and Schönherr, J. 1995. Temperature dependence of the diffusion of organic compounds across plant cuticles. Chemosphere 30:13311340.Google Scholar
Buhler, D. D. and Burnside, O. C., 1983. Effects of spray components on glyphosate toxicity to annual grasses. Weed Sci. 31:124130.Google Scholar
Buhler, D. D. and Burnside, O. C. 1987. Effects of application variables on glyphosate phytotoxicity, Weed Technol. 1:1417.Google Scholar
Casely, J. C. and Coupland, D. 1985. Environmental and plant factors affecting glyphosate uptake, movement and activity. In Grossbard, E. and Atkinson, D., eds. The Herbicide Glyphosate. London: Butterworth. pp. 92123.Google Scholar
Cranmer, J. R. and Linscott, D. L. 1990. Droplet makeup and the effect on phytotoxicity of glyphosate in velvetleaf (Abutilon theophrasti). Weed Sci. 38:406410.Google Scholar
de Ruiter, H. and Meinen, E. 1995. Influence of surfactant and water stress on the efficacy, absorption and translocation of glyphosate. Fourth Int. Symp. Adjuvants for Agrochem., Melbourne, Australia, FRI Bulletin 193:211216.Google Scholar
Duke, S. O. 1988. Glyphosate. In Kearney, P. C. and Kaufman, D. D., eds. Herbicides: Chemistry, Degradation and Mode of Action. New York: Marcel Dekker. pp. 270.Google Scholar
Gaskin, R. E. 1995. Phytotoxicity of agrochemical surfactants, Fourth Int. Symp. Adjuvants for Agrochem. Melbourne, Australia: FRI Bulletin 193:193199.Google Scholar
Geiger, D. R. and Bestman, H. D. 1990. Self-limitation of herbicide mobility by phytotoxic action. Weed Sci. 38:324329.Google Scholar
Geiger, D. R., Tucci, M. A., and Servaites, J. C. 1987. Glyphosate effects on carbon assimilation and gas exchange in sugar beet leaves. Plant Physiol. 85:365369.Google Scholar
Gougler, J. A. and Geiger, D. R. 1984. Carbon partitioning and herbicide translocation in glyphosate treated sugar beet (Beta vulgaris). Weed Sci. 32:546551.Google Scholar
Khan, R. A. and Molin, W. T. 1997. Translocation of 14C-halosulfuron-methyl and 14C-glyphosate in purple nutsedge (Cyperus rotundas L.). Weed Sci. Soc. Am. Abstr. 310:122.Google Scholar
Kirkwood, R. C. 1993. Herbicides and Plants. Bot. J. Scotland 46:447462.CrossRefGoogle Scholar
Liu, S.H., Campbell, R. A., Studens, J. A., and Wagner, R. G. 1996. Absorption and translocation of glyphosate in Aspen (Populus tremuloides Michx.) as influenced by droplet size, droplet number, and herbicide concentration, Weed Sci. 44:482488.Google Scholar
Majek, B. A. 1980. The effect of environmental factors on quackgrass [Agropyron repens (L.) Beauv.] growth and glyphosate penetration and translocation. . Cornell University, Ithaca, NY.Google Scholar
Requero, M.A., Goni, F. M., and Alonso, A. 1995. The membrane-perturbing properties of palmitoyl-coenzyme A and palmitoylcarnitine. A comparative study. Biochemistry 34:1040010405.Google Scholar
Riechers, D.E., Wax, L. M., Liebl, R. A., and Bush, D. R. 1994. Surfactant-increased glyphosate uptake into plasma membrane vesicles isolated from common lambsquarters leaves. Plant Physiol. 105:14191425.Google Scholar
Sherrick, S.L., Holt, H. A., and Hess, F. D. 1986. Absorption and translocation of MON 0818 adjuvant in filed bindweed (Convolvulus arvensis). Weed Sci. 34:817823.Google Scholar