Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-07T22:59:01.916Z Has data issue: false hasContentIssue false

Multiple herbicide resistance in downy brome (Bromus tectorum) and its impact on fitness

Published online by Cambridge University Press:  20 January 2017

Carol A. Mallory-Smith
Affiliation:
Department of Crop and Soil Science, Oregon State University, Corvallis, OR 97331-3002

Abstract

Enhanced herbicide metabolism is less common than target site–based herbicide resistance in weeds and often confers resistance to chemically dissimilar herbicides. In a previous study, the mechanism of acetolactate synthase (ALS)-inhibitor resistance in a downy brome biotype was determined to be metabolism. Our research was aimed at determining the multiple resistance pattern in the downy brome biotype, establishing its physiological basis, and investigating its fitness. Dose–response experiments showed that the resistant biotype was also moderately resistant to ethofumesate, clethodim, fluazifop, diuron, and terbacil and highly resistant to the triazine herbicides, atrazine and metribuzin. DNA sequence analysis of the psbA gene, which is the target site of PSII inhibitors, demonstrated a single amino acid substitution from serine to glycine in the resistant biotype at residue 264 in the D1 protein. Thus, the resistant biotype contains two different resistance mechanisms, herbicide metabolism and an altered target site. The resistant biotype produced less shoot dry weight, leaf area, and seed and was shorter than the susceptible biotype. The resistant biotype was also less competitive than the susceptible biotype. Thus, in the absence of herbicides, the frequency of this resistant biotype is unlikely to increase in a population of mixed downy brome biotypes.

Type
Physiology, Chemistry, and Biochemistry
Copyright
Copyright © 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

Anderson, D. D., Higley, L. G., Martin, A. R., and Roeth, F. W. 1996. Competition between triazine-resistant and -susceptible common waterhemp (Amaranthus rudis). Weed Sci 44:853859.CrossRefGoogle Scholar
Bettini, P., McNally, S., Sevignac, M., Darmency, H., Gasquez, J., and Dron, M. 1987. Atrazine-resistance in Chenopodium album . Plant Physiol 84:14421446.CrossRefGoogle ScholarPubMed
Conard, S. G. and Radosevich, S. R. 1979. Ecological fitness of Senecio vulgaris and Amaranthus retroflexus biotypes susceptible or resistant to atrazine. J. Appl. Ecol 16:171177.CrossRefGoogle Scholar
Cousens, R. D., Gill, G. S., and Speijers, E. J. 1997. Number of sample populations required to determine the effects of herbicide-resistance on plant growth and fitness. Weed Res 37:14.CrossRefGoogle Scholar
Foes, M. J., Liu, L., Tranel, P. J., Wax, L. M., and Stoller, E. W. 1998. A biotype of common waterhemp (Amaranthus rudis) resistant to triazine and ALS herbicides. Weed Sci 46:514520.CrossRefGoogle Scholar
Foes, M. J., Liu, L., Vigue, G., Stoller, E. W., Wax, L. M., and Tranel, P. J. 1999. A kochia (Kochia scoparia) biotype resistant to triazine and ALS-inhibiting herbicides. Weed Sci 47:2127.CrossRefGoogle Scholar
Gardner, G. 1989. A stereochemical model for the active site of photosystem II herbicides. Photochem. Photobiol 49:331336.CrossRefGoogle Scholar
Gronwald, J. W. 1994. Resistance to photosystem II inhibiting herbicides. Pages 2760 in Powles, S. B. and Holtum, J. A. M. eds. Herbicide Resistance in Plants: Biology and Biochemistry. Ann Arbor, MI: Lewis.Google Scholar
Hall, L. M., Holtum, J. A. M., and Powles, S. B. 1994. Mechanisms responsible for cross resistance and multiple resistance. Pages 243261 in Powles, S. B. and Holtum, J.A.M. eds. Herbicide Resistance in Plants: Biology and Biochemistry. Ann Arbor, MI: Lewis.Google Scholar
Heap, I. 2005. International Survey of Herbicide Resistant Weeds. http://www.weedscience.com.Google Scholar
Heifetz, P. B., Lers, A., Turpin, D. H., Gillham, N. W., Boynton, J. E., and Osmond, C. B. 1997. dr and spr/sr mutations of Chlamydomonas reinhardtii affecting D1 protein function and synthesis define two independent steps leading to chronic photoinhibition and confer differential fitness. Plant Cell Environ 20:11451157.CrossRefGoogle Scholar
Holt, J. S. 1988. Reduced growth, competitiveness, and photosynthetic efficiency of triazine-resistant Senecio vulgaris from California. J. Appl. Ecol 25:307318.CrossRefGoogle Scholar
Hunt, R. 1982. Plant Growth Curves: The Functional Approach to Plant Growth Analysis. Baltimore, MD: Edward Arnold.Google Scholar
Letouzé, A. and Gasquez, J. 2003. Enhanced activity of several herbicide-degrading enzymes: a suggested mechanism responsible for multiple resistance in blackgrass (Alopecurus myosuroides Huds). Agronomie (Paris) 23:601608.CrossRefGoogle Scholar
Maxwell, B. D., Roush, M. L., and Radosevich, S. R. 1990. Predicting the evolution and dynamics of herbicide resistance in weed populations. Weed Technol 4:213.CrossRefGoogle Scholar
Morrow, L. A. and Stahlman, P. W. 1984. The history and distribution of downy brome (Bromus tectorum) in North America. Weed Sci 32:(Suppl. 1). 26.CrossRefGoogle Scholar
Mueller-Warrant, G. W., Mallory-Smith, C. A., and Hendrickson, P. E. 1999. Non-target site resistance to ALS inhibitors in downy brome. Proc. West. Soc. Weed Sci 52:16.Google Scholar
Oettmeier, W. 1999. Herbicide resistance and supersensitivity in photosystem, II: cell. Mol. Life Sci 55:12551277.CrossRefGoogle Scholar
Park, K. W. and Mallory-Smith, C. A. 2004. Physiological and molecular basis for ALS inhibitor resistance in Bromus tectorum biotypes. Weed Res 44:7177.CrossRefGoogle Scholar
Park, K. W., Fandrich, L., and Mallory-Smith, C. A. 2004. Absorption, translocation, and metabolism of propoxycarbazone-sodium in ALS-inhibitor resistant Bromus tectorum biotypes. Pestic. Biochem. Physiol 79:1824.CrossRefGoogle Scholar
Preston, C., Tardif, F. J., Christopher, J. T., and Powles, S. B. 1996. Multiple resistance to dissimilar herbicide chemistries in a biotype of Lolium rigidum due to enhanced activity of several herbicide degrading enzymes. Pestic. Biochem. Physiol 54:123134.CrossRefGoogle Scholar
Radosevich, S. R., Holt, J. S., and Ghersa, C. 1997. Genetics and evolution of weeds. Page 69102 in Weed Ecology, Implications for Management. 2nd ed. New York: J. Wiley.Google Scholar
Richards, F. J. 1959. A flexible growth function for empirical use. J. Exp. Bot 10:290300.CrossRefGoogle Scholar
Ryan, G. F. 1970. Resistance of common groundsel to simazine and atrazine. Weed Sci 18:614616.CrossRefGoogle Scholar
[SAS] Statistical Analysis Systems. 1987. SAS/STATTM Guide for Personal Computers. Version 6. Cary, NC: Statistical Analysis Systems Institute Inc. 1028 p.Google Scholar
Seefeldt, S. S., Jensen, J. E., and Fuerst, E. P. 1995. Log-logistic analysis of herbicide dose-response relationships. Weed Technol 9:218225.CrossRefGoogle Scholar
Sibony, M. and Rubin, B. 2003. The ecological fitness of ALS-resistant Amaranthus retroflexus and multiple-resistant Amaranthus blitoides . Weed Res 43:4047.CrossRefGoogle Scholar
Streibig, J. C. 1988. Herbicide bioassay. Weed Res 28:479484.CrossRefGoogle Scholar
Warwick, S. I. 1991. Herbicide resistance in weedy plants: physiology and population biology. Annu. Rev. Ecol. Syst 22:95114.CrossRefGoogle Scholar