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| DOI: | 10.1614/WS-06-167.1 |
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| Web URL(s): | http://www.bioone.org/doi/full/10.1614/WS-06-167.1
Last checked: 03/15/2010
Access conditions: Item is within a limited access website
http://www.bioone.org/doi/pdf/10.1614/WS-06-167.1
Last checked: 03/15/2010
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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): | Michitte, Paola;
De Prado, Rafael;
Espinoza, Nelson;
Ruiz-Santaella, Juan Pedro;
Gauvrit, Christian |
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| Author Affiliation: | Michitte, De Pardo, and Ruiz-Santaella: Departamento de Química Agrícola y Edafología, Universidad de Córdoba, Córdoba, España; Espinoza: Centro Regional de Investigación, Temuco, Chile; Gauvrit: UMR Biologie et Gestion des Adventices, French National Institute for Agricultural Research, Dijon Cedex, France |
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| Title: | Mechanisms of resistance to glyphosate in a ryegrass (Loium multiflorum) biotype from Chile |
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| Section: | Physiology, chemistry, and biochemistry
Other records with the "Physiology, chemistry, and biochemistry" Section
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| Source: | Weed Science. Vol. 55, No. 5, September/October 2007, p. 435-440. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Glyphosate; Herbicide resistance; Lolium multiflorum; Application rates; Spray retention; Spraying methods; Foliar uptake; Translocation; Shikimic acid
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| Abstract/Contents: | "Glyphosate behavior was examined in Italian ryegrass plants from Chile that were sensitive (S) and resistant (R) to this herbicide. In order to explain the resistance to glyphosate, contact angles, spray retention, foliar uptake, herbicide translocation, and target enzyme activity were studied. Contact angles of glyphosate solutions were 40° to 45° on the abaxial surface of R leaves as compared to 70° on S. Glyphosate spray retention by R plants was 35% lower than by S plants. Glyphosate uptake by the abaxial leaf surface of R plants was about 40% lower than that of S plants. In addition, in the R plants more glyphosate migrated to the tip of the treated leaves. The target enzyme in R and S plants was sensitive to the herbicide. Based on these and previous results, it is concluded that resistance in this Italian ryegrass biotype results from lower spray retention, lower foliar uptake from abaxial leaf surface, and altered translocation patter. The decreases in spray retention and foliar uptake constitute new mechanisms of glyphosate resistance." |
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| Language: | English |
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| References: | 23 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Michitte, P., R. De Prado, N. Espinoza, J. P. Ruiz-Santaella, and C. Gauvrit. 2007. Mechanisms of resistance to glyphosate in a ryegrass (Loium multiflorum) biotype from Chile. Weed Science. 55(5):p. 435-440. |
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| DOI: 10.1614/WS-06-167.1 |
| Web URL(s):
http://www.bioone.org/doi/full/10.1614/WS-06-167.1
Last checked: 03/15/2010
Access conditions: Item is within a limited access website
http://www.bioone.org/doi/pdf/10.1614/WS-06-167.1
Last checked: 03/15/2010
Requires: PDF Reader
Access conditions: Item is within a limited access website |
| 
MSU catalog number: b2203399a |
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