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Absorption, translocation, and metabolism of primisulfuron and nicosulfuron in broadleaf signalgrass (Brachiaria platyphylla) and corn

Published online by Cambridge University Press:  12 June 2017

Kent Gallaher ,
Thomas C. Mueller ,
Robert M. Hayes ,
Otto Schwartz  and
Michael Barrett
Kent Gallaher
Affiliation:
Department of Plant and Soil Science, The University of Tennessee, Knoxville, TN 37996
Robert M. Hayes
Affiliation:
Department of Plant and Soil Science, The University of Tennessee, Knoxville, TN 37996
Otto Schwartz
Affiliation:
Department of Botany, The University of Tennessee, Knoxville, TN 37996
Michael Barrett
Affiliation:
University of Kentucky, Lexington, KY 40506
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Abstract

Broadleaf signalgrass is sensitive to nicosulfuron and resistant to primisulfuron, but corn is resistant to both. Research was conducted to determine the effect of varying light level and air temperature on absorption, translocation, and metabolism of nicosulfuron and primisulfuron in broadleaf signalgrass and corn. Corn absorbed between 60 and 85% of the applied nicosulfuron and primisulfuron within 72 h after treatment (HAT), depending on environmental treatment. Absorption, translocation, and metabolism all tended to be more rapid at higher temperature and light intensity. Nicosulfuron and primisulfuron translocation out of the treated leaf was < 4.5% of herbicide absorbed through 72 HAT. Corn rapidly metabolized both herbicides in both environments. However, primisulfuron was metabolized more rapidly (high = 99%, low = 92%) than nicosulfuron (high = 95%, low = 78%). Broadleaf signalgrass absorbed 20% more nicosulfuron than primisulfuron through 72 HAT. Nicosulfuron translocation out of the treated leaf in broadleaf signalgrass was ≤ 15% absorbed through 72 HAT, while primisulfuron translocation was ≤ 4% during the same time period. Primisulfuron metabolism was more rapid than nicosulfuron in broadleaf signalgrass. During the first 4 HAT, broadleaf signalgrass metabolized > 20 times more primisulfuron than nicosulfuron. By 72 HAT, broadleaf signalgrass under conditions of high light and temperature had metabolized nearly 90% of the primisulfuron absorbed but ≤ 7% of the nicosulfuron absorbed was metabolized during the same time. These results suggest that differential activity of nicosulfuron and primisulfuron on broadleaf signalgrass may be based on differential rates of metabolism to nonphytotoxic compounds; uptake and translocation differences agree with the differential broadleaf signalgrass activity. Additionally, environment has the potential to affect rates of sulfonylurea absorption, translocation, and metabolism.

Keywords

Nicosulfuronprimisulfuroncorn (Zea mays L.) ‘DeKalb DK689’broadleaf signalgrass [Brachiaria platyphylla (Griseb.) Nash]HPLC, absorption, translocation, metabolism
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 47 , Issue 1 , February 1999 , pp. 8 - 12
Copyright
Copyright © 1999 by the Weed Science Society of America 

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Footnotes

Present address: Lipscombe University, Nashville, TN 37204

References

Literature Cited

Ashton, F. M. and Monaco, T. D. 1991. Weed Science. Principles and Practices. 3rd ed. New York: J. Wiley, pp. 266–272.Google Scholar
Baerg, R.J.M., Barrett, M., and Polge, N. D. 1996. Insecticide and insecticide metabolite interactions with cytochrome P450 activities in maize. Pestic. Biochem. Physiol. 55: 10–20.Google Scholar
Barrett, M. 1995. Metabolism of herbicides by cytochrome P450 in corn. Drug Metab. Drug Interact. 12: 299–315.Google Scholar
Brown, H. M. 1990. Mode of action, crop selectivity, and soil relations of the sulfonylurea herbicides. Pestic. Sci. 29: 263–281.Google Scholar
Bruce, J. A., Carey, J. B., Penner, D., and Kells, J. J. 1996. Effect of growth stage and environment on foliar absorption, translocation, metabolism, and activity of nicosulfuron in quackgrass (Elytrigia repens). Weed Sci. 44: 447–454.CrossRefGoogle Scholar
Camacho, R. F. and Moshier, L. J. 1991. Adsorption, translocation, and activity of CGA-136872, DPX-V9360, and glyphosate in rhizome johnsongrass (Sorghum halepense). Weed Sci. 39: 354–357.CrossRefGoogle Scholar
Fonne-Pfister, R., Gaudin, J., Kreuz, K., Ramsteiner, K., and Edert, E. 1990. Hydroxylation of primisulfuron by an inducible cytochrome P450 dependent monooxygenase system from maize. Pestic. Biochem. Physiol. 37: 165–173.Google Scholar
Fonne-Pfister, R. and Kreuz, K. 1990. Ring-methyl hydroxylation of chlorotoluron by an inducible cytochrome P-450-dependent enzyme from maize. Phytochemistry 29: 2793–2796.Google Scholar
Gerwick, B. C., Mirles, L. C., and Eilers, R. J. 1993. Rapid diagnosis of ALS/AHAS-resistant weeds. Weed Technol. 7: 519–524.Google Scholar
Harms, C. T., Montoya, A. L., Privalle, L. S., and Briggs, R. W. 1990. Genetic and biochemical characterization of corn inbred lines tolerant to the sulfonylurea herbicide primisulfuron. Theor. Appl. Genet. 80: 353–358.Google Scholar
Hinz, J. R. and Owen, M. K. 1996. Nicosulfuron and primisulfuron selectivity in corn (Zea mays) and two annual grass weeds. Weed Sci. 44: 219–223.Google Scholar
Kreuz, K. and Fonne-Pfister, R. 1992. Herbicide-insecticide interaction in maize: malathion inhibits cytochrome P450 dependent primisulfuron metabolism. Pestic. Biochem. Physiol. 43: 232–240.CrossRefGoogle Scholar
Krueger, W. A. and Kirksey, K. B. 1994. Postemergence broadleaf signalgrass control in corn. Proc. South. Weed Sci. Soc. 46: 45.Google Scholar
Neighbors, S. and Privalle, L. S. 1990. Metabolism of primisulfuron by barnyardgrass. Pestic. Biochem. Physiol. 37: 145–153.Google Scholar
Polge, N. E. and Barrett, M. 1995. Characterization of cytochrome P-450 mediated chlorimuron ethyl hydroxylation in maize microsomes. Pestic. Biochem. Physiol. 53: 193–204.Google Scholar
Sweetser, P. B., Schow, G. S., and Hutchenson, J. M. 1982. Metabolism of chlorsulfuron by plants: biological basis for selectivity of a new herbicide for cereals. Pestic. Biochem. Physiol. 17: 18–23.CrossRefGoogle Scholar