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| DOI: | 10.1002/ps.4774 |
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| Web URL(s): | https://onlinelibrary.wiley.com/doi/full/10.1002/ps.4774
Last checked: 03/19/2018
Access conditions: Item is within a limited-access website
https://onlinelibrary.wiley.com/doi/pdf/10.1002/ps.4774
Last checked: 03/19/2018
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Tehranchian, Parsa;
Nandula, Vijay;
Jugulam, Mithila;
Putta, Karthik;
Jasieniuk, Marie |
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| Author Affiliation: | Tehranchian and Jasieniuk: Department of Plant Sciences, University of California, Davis, CA; Nandula: Crop Production Systems Research Unit, United States Department of Agriculture, Stoneville, MS; Jugulam and Putta: Department of Agronomy, Kansas State University, Manhattan, KS |
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| Title: | Multiple resistance to glyphosate, paraquat and ACCase-inhibiting herbicides in Italian ryegrass populations from California: Confirmation and mechanisms of resistance |
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| Source: | Pest Management Science. Vol. 74, No. 4, April 2018, p. 868-877. |
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| Publishing Information: | Barking, Essex, United Kingdom: Elsevier Science Publishers Ltd. |
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| # of Pages: | 10 |
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| Related Web URL: | https://onlinelibrary.wiley.com/doi/abs/10.1002/ps.4774
Last checked: 03/19/2018
Notes: Abstract only |
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| Keywords: | TIC Keywords: Acetyl-CoA carboxylase inhibitors; Glyphosate; Herbicide evaluation; Herbicide resistance; Lolium multiflorum; Paraquat
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| Geographic Terms: | Central Valley, California |
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| Abstract/Contents: | "BACKGROUND: Glyphosate, paraquat and acetyl CoA carboxylase (ACCase)-inhibiting herbicides are widely used in California annual and perennial cropping systems. Recently, glyphosate, paraquat, and ACCase- and acetolactate synthase (ALS)-inhibitor resistance was confirmed in several Italian ryegrass populations from the Central Valley of California. This research characterized the possible mechanisms of resistance. RESULTS: Multiple-resistant populations (MR1, MR2) are resistant to several herbicides from at least three modes of action. Doseresponse experiments revealed that the MR1 population was 45.9-, 122.7- and 20.5-fold, and the MR2 population was 24.8-, 93.9- and 4.0-fold less susceptible to glyphosate, sethoxydim and paraquat, respectively, than the susceptible (Sus) population. Accumulation of shikimate in Sus plants was significantly greater than in MR plants 32 h after light pretreatments. Glyphosate resistance in MR plants was at least partially due to Pro106-to-Ala and Pro106-to-Thr substitutions at site 106 of 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS). EPSPS gene copy number and expression level were similar in plants from the Sus and MR populations. An Ile1781-to-Leu substitution in ACCase gene of MR plants conferred a high level of resistance to sethoxydim and cross-resistance to other ACCase-inhibitors. Radiolabeled herbicide studies and phosphorimaging indicated that MR plants had restricted translocation of 14C-paraquat to untreated leaves compared to Sus plants. CONCLUSION: This study shows that multiple herbicide resistance in Italian ryegrass populations in California, USA, is due to both target-site and non-target-site resistance mechanisms." |
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| Language: | English |
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| References: | 45 |
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| Note: | Pictures, b/w
Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Tehranchian, P., V. Nandula, M. Jugulam, K. Putta, and M. Jasieniuk. 2018. Multiple resistance to glyphosate, paraquat and ACCase-inhibiting herbicides in Italian ryegrass populations from California: Confirmation and mechanisms of resistance. Pest Management Science. 74(4):p. 868-877. |
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| DOI: 10.1002/ps.4774 |
| Web URL(s):
https://onlinelibrary.wiley.com/doi/full/10.1002/ps.4774
Last checked: 03/19/2018
Access conditions: Item is within a limited-access website
https://onlinelibrary.wiley.com/doi/pdf/10.1002/ps.4774
Last checked: 03/19/2018
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2219665 |
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