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Metabolism as a Basis for Differential Atrazine Tolerance in Warm-Season Forage Grasses

Published online by Cambridge University Press:  12 June 2017

Monte R. Weimer ,
Beth A. Swisher  and
Kenneth P. Vogel
Monte R. Weimer
Affiliation:
Dep. Agron. and USDA-ARS, Univ. Nebraska, Lincoln, NE 68583
Beth A. Swisher
Affiliation:
Dep. Agron. and USDA-ARS, Univ. Nebraska, Lincoln, NE 68583
Kenneth P. Vogel
Affiliation:
Dep. Agron. and USDA-ARS, Univ. Nebraska, Lincoln, NE 68583
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Abstract

Atrazine metabolism was studied in four warm-season forage grasses to determine if metabolism was the basis for differential atrazine tolerance among the grasses. Big bluestem and switchgrass are atrazine tolerant while indiangrass and sideoats grama are atrazine susceptible in the seedling stage. Metabolism of atrazine in big bluestem and switchgrass occurred primarily by glutathione conjugation. The major metabolic product isolated from indiangrass and sideoats grama was the N-deethylated metabolite of atrazine. Glutathione conjugation by big bluestem and switchgrass occurred at a faster rate than N-dealkylation of atrazine in indiangrass and sideoats grama. Differential tolerance to atrazine among the grasses studied was probably due to the metabolic route by which they detoxify atrazine and the rate of metabolism for that specific route. Intraspecific differences in atrazine tolerance in indiangrass were due to the amount of metabolite produced in relationship to the amount of parent atrazine remaining in the shoot tissue. The more tolerant indiangrass lines had a higher metabolite to parent atrazine ratio than susceptible lines. This study confirmed differences in seedling atrazine tolerance of four indiangrass lines observed in previous greenhouse studies.

Keywords

Atrazine, 6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diaminebig bluestem, Andropogon gerardii Vitmanswitchgrass, Panicum virgatum L.indiangrass, Sorghastrum nutans (L.) Nashsideoats grama, Bouteloua curtipendula (Michx.) Torr.MetabolismselectivityAndropogon gerardiiPanicum virgatumSorghastrum nutansBouteloua crutipendula
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 36 , Issue 4 , July 1988 , pp. 436 - 440
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

Literature Cited

1. Bahler, C. C., Vogel, K. P., and Moser, L. E. 1984. Atrazine tolerance in warm-season grass seedlings. Agron. J. 76:891–895.Google Scholar
2. Frear, D. S. and Swanson, H. R. 1970. Biosynthesis of S-(4-ethylamino-6-isopropyl amino-2-s-triazino)glutathione: Partial purification and properties of a glutathione S-transferase from corn. Phytochemistry 9:2123–2132.Google Scholar
3. Gould, F. W. and Shaw, R. B. 1983. Grass Systematics. Texas A & M Univ. Press, College Station. 397 pp.Google Scholar
4. Hatzios, K. K. and Penner, D. 1982. Metabolism of Herbicides in Higher Plants. Burgess Publishing Co., Minneapolis. 142 pp.Google Scholar
5. Hoagland, D. R. and Arnon, D. I. 1950. The water culture method for growing plants without soil. California Agric. Exp. Stn. Circ. 347. 32 pp.Google Scholar
6. Jensen, K.I.N., Stephenson, G. R., and Hunt, L. A. 1977. Detoxification of atrazine in three gramineae subfamilies. Weed Sci. 29:70–73.Google Scholar
7. Kube, J., Vogel, K. P., and Moser, L. E. 1987. Genetic variability for seedling atrazine tolerance in indiangrass. Agron. Abstr. Am. Soc. Agron., Madison, WI. Page 68.Google Scholar
8. Lamoureux, G. L., Shimabukuro, R. H., Swanson, H. R., and Frear, D. S. 1970. Metabolism of 2-chloro-4-ethylamino-6-isopropyl-amino-s-triazine (atrazine) in excised sorghum leaf sections. J. Agric. Food Chem 18:81–86.Google Scholar
9. Lamoureux, G. L., Stafford, L. E., Shimabukuro, R. H., and Zaylskie, R. G. 1973. Atrazine metabolism in sorghum: catabolism of glutathione conjugate of atrazine. J. Agric. Food Chem. 21:1020–1030.Google Scholar
10. Mangeot, B. L., Slife, F. E., and Rieck, C. E. 1979. Differential metabolism of metribuzin by two soybean (Glycine max) cultivars. Weed Sci. 27:267–269.Google Scholar
11. Martin, A. R., Moomaw, R. S., and Vogel, K. P. 1982. Warm season grass establishment with atrazine. Agron. J. 74:916–920.CrossRefGoogle Scholar
12. Martin, F. A. 1985. Genetic variability of response to plant growth regulators. Rev. Weed Sci. 1:64–73.Google Scholar
13. Shimabukuro, R. H. 1967a. Significance of atrazine dealkylation in root and shoot of pea plants. J. Agric. Food Chem. 14:392–395.Google Scholar
14. Shimabukuro, R. H. 1967b. Atrazine metabolism and herbicidal selectivity. Plant Physiol. 42:1269–1276.Google Scholar
15. Shimabukuro, R. H. 1968. Atrazine metabolism in resistant corn and sorghum. Plant Physiol. 42:1269–1276.Google Scholar
16. Shimabukuro, R. H., Walsh, W. C., Lamoureux, G. L., and Stafford, L. E. 1973. Atrazine metabolism in sorghum: chloroformsoluble intermediates in the N-dealkylation and glutathione conjugation pathways. J. Agric. Food Chem. 21:1031–1036.Google Scholar
17. Thompson, L. Jr., Houghton, J. M., Slife, F. W., and Butler, H. S. 1971. Metabolism of atrazine by fall panicum and large crabgrass. Weed Sci. 19:406–409.Google Scholar
18. Thompson, L. Jr. 1972. Metabolism of simazine and atrazine by wild cane. Weed Sci. 20:153–155.CrossRefGoogle Scholar
19. Warnes, D. D. 1966. Warm-season grasses for tomorrow. Nebr. Farm, Ranch, and Home Q. 18:20–21.Google Scholar
20. Warnes, D. D., Newell, L. C., and Moline, W. J. 1971. Performance evaluation of some warm-season prairie grasses in Nebraska environments. Nebr. Exp. Stn. Res. Bull. 241. 55 pp.Google Scholar