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| DOI: | 10.1614/WS-D-15-00094.1 |
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| Web URL(s): | http://www.bioone.org/doi/pdf/10.1614/WS-D-15-00094.1
Last checked: 01/26/2016
Requires: PDF Reader
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http://www.bioone.org/doi/10.1614/WS-D-15-00094.1
Last checked: 02/02/2016
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | McCullough, Patrick E.;
Yu, Jialin;
McElroy, J. Scott;
Chen, S.;
Zhang, H.;
Grey, Timothy L.;
Czarnota, Mark A. |
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| Author Affiliation: | McCullough and Grey: Associate Professor; Yu: Postdoctoral Researcher, Crop and Soil Sciences Department; Czarnota: Associate Professor, Horticulture Department, University of Georgia, Griffin, GA; McElroy: Professor; Chen and Zhang: Graduate Research Assistant, Department of Crop, Soil, and Environmental Sciences, Auburn University, Auburn, IL |
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| Title: | ALS-resistant annual sedge (Cyperus compressus) confirmed in turfgrass |
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| Section: | Physiology/chemistry/biochemistry
Other records with the "Physiology/chemistry/biochemistry" Section
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| Source: | Weed Science. Vol. 64, No. 1, January-March 2016, p. 33-41. |
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| Publishing Information: | Champaign, Illinois: Weed Science Society of America |
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| # of Pages: | 9 |
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| Related Web URL: | http://www.bioone.org/doi/abs/10.1614/WS-D-15-00094.1
Last checked: 02/02/2016
Notes: Abstract only |
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| Keywords: | TIC Keywords: Acetolactate synthase-inhibiting herbicides; Biotypes; Comparisons; Cyperus compressus; Halosulfuron; Herbicide efficacy; Herbicide evaluation; Herbicide resistance; Herbicide trials; Postemergence herbicides
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| Abstract/Contents: | "Acetolactate synthase (ALS) inhibitors are widely used for POST control of sedges in turfgrass. A suspected resistant (R) biotype of annual sedge was collected from a bermudagrass turf in Georgia with a history of exclusive use of halosulfuron. Research was conducted to evaluate the resistance level of this biotype to halosulfuron, efficacy of ALS-inhibiting herbicides and other mechanisms of action for control, and the molecular and physiological basis for resistance. In greenhouse experiments, the halosulfuron rate required to reduce shoot biomass 50% in comparison with the nontreated at 8 wk after treatment (WAT) were 8 and > 1,120 g ai ha-1 for the S (susceptible) and R biotypes, respectively. Imazapic, sulfosulfuron, and trifloxysulfuron reduced biomass of the S biotype greater than 60% at 8 WAT, but biomass was reduced less than 20% for the R biotype. Glufosinate, glyphosate, MSMA, and sulfentrazone reduced shoot biomass of the R biotype by 93, 86, 97, and 45%, respectively. In laboratory experiments, the halosulfuron concentration required to inhibit ALS activity by 50% in excised leaf tissues was 5.8 and > 1,000 μM for the S and R biotypes, respectively. Gene sequencing of the R biotype revealed a Pro-197-Ser substitution that confers resistance to ALS inhibitors. This is the first report of ALS-inhibitor resistance in annual sedge and herbicide resistance in a sedge species from a turfgrass system." |
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| Language: | English |
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| References: | 50 |
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| See Also: | See also interpretive summary "It's resistant" Golf Course Management, 87(10) October 2019, p. 76, R=308655. R=308655
See also related article, "Annual sedge resistance to halosulfuron and other ALS inhibitors in turfgrass: Confirmation of resistant sedges adds to the growing problem of herbicide-resistant weeds in turf" Golf Course Management, 84(2) February 2016, p. 98-100, R=268749. R=268749 |
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| Note: | Equations
Pictures, color
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McCullough, P. E., J. Yu, J. S. McElroy, S. Chen, H. Zhang, T. L. Grey, et al. 2016. ALS-resistant annual sedge (Cyperus compressus) confirmed in turfgrass. Weed Sci. 64(1):p. 33-41. |
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| DOI: 10.1614/WS-D-15-00094.1 |
| Web URL(s):
http://www.bioone.org/doi/pdf/10.1614/WS-D-15-00094.1
Last checked: 01/26/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website
http://www.bioone.org/doi/10.1614/WS-D-15-00094.1
Last checked: 02/02/2016
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2203399a |
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