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| Full TGIF Record # 268235 Item 1 of 1 |
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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 |
| Publication Type: | Refereed |
| Author(s): | McCullough, Patrick E.; Yu, Jialin; McElroy, J. Scott; Chen, S.; Zhang, H.; Grey, Timothy L.; Czarnota, Mark A. |
| 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 |
| Title: | ALS-resistant annual sedge (Cyperus compressus) confirmed in turfgrass |
| Section: | Physiology/chemistry/biochemistry Other records with the "Physiology/chemistry/biochemistry" Section |
| Source: | Weed Science. Vol. 64, No. 1, January-March 2016, p. 33-41. |
| Publishing Information: | Champaign, Illinois: Weed Science Society of America |
| # of Pages: | 9 |
| Related Web URL: | http://www.bioone.org/doi/abs/10.1614/WS-D-15-00094.1 Last checked: 02/02/2016 Notes: Abstract only |
| Keywords: | TIC Keywords: Acetolactate synthase-inhibiting herbicides; Biotypes; Comparisons; Cyperus compressus; Halosulfuron; Herbicide efficacy; Herbicide evaluation; Herbicide resistance; Herbicide trials; Postemergence herbicides |
| 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." |
| Language: | English |
| References: | 50 |
| 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 |
| Note: | Equations Pictures, color Tables Graphs |
| 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. |
| Fastlink to access this record outside TGIF: | http://tic.msu.edu/tgif/flink/RECNO/268235 |
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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 |
| MSU catalog number: | b2203399a |
| Find from within TIC: | Digitally in TIC by record number. |
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