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| Publication Type:
| Refereed |
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| Author(s): | Richter, Joanna;
Powles, Stephen B. |
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| Author Affiliation: | Department of Crop ""Protection, Waite Agricultural Research Imstitute, University of Adelaide, South Australia, Australia |
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| Title: | Pollen expression of herbicide target site resistance genes in annual ryegrass (Lolium rigidum) |
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| Source: | Plant Physiology. Vol. 102, No. 3, July 1993, p. 1037-1041. |
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| Publishing Information: | Lancaster, PA: American Society of Plant Physiologists |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Herbicides; Herbicide resistance; Lolium multiflorum; Pollen germination; Enzymes
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| Abstract/Contents: | "Herbicide resistance can occur either through target-site insensitivity or by nontarget site-based mechanisms. Two herbicide-resistant biotypes of Lolium rigidum Gaud, one resistant to acetolactate synthase (ALS)-inhibiting herbicides (biotype WLR1) and the other resistant to acetyl CoA carboxylase (ACCase)-inhibiting herbicides (biotype WLR96) through target-site insensitivity at the whole plant and enzymic levels, were found to express this resistance in the pollen. Pollen produced by resistant biotypes grew uninhibited when challenged with herbicide, whereas that from a susceptible biotype was inhibited. A third biotype, SLR31, resistant to ACCase-inhibiting and certain ALS-inhibiting herbicides at the whole plant level through nontarget site-based mechanisms, did not exhibit this expression in the pollen. The technique described may form the basis for a rapid screen for certain nuclear-encoded target site-based herbicide-resistance mechanisms." |
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| Language: | English |
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| References: | 26 |
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| Note: | Figures |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Richter, J., and S. B. Powles. 1993. Pollen expression of herbicide target site resistance genes in annual ryegrass (Lolium rigidum). Plant Physiol. 102(3):p. 1037-1041. |
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