Projects per year
Abstract
Synthetic auxin herbicides, such as 2,4-dichlorophenoxyacetic acid (2,4-D), are widely used for selective control of broadleaf weeds in cereals and transgenic crops. Although the troublesome weed wild radish (Raphanus raphanistrum) has developed resistance to 2,4-D, no populations have yet displayed an enhanced capacity for metabolic detoxification of the herbicide, with both susceptible and resistant wild radish plants readily metabolizing 2,4-D. Using mass spectrometry and nuclear magnetic resonance, the major 2,4-D metabolite was identified as the glucose ester, and its structure was confirmed by synthesis. As expected, both the endogenous and synthetic compounds retained auxin activity in a bioassay. The lack of detectable 2,4-D hydroxylation in wild radish and the lability of the glucose ester suggest that metabolic 2,4-D resistance is unlikely to develop in this species.
Original language | English |
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Pages (from-to) | 13378-13385 |
Number of pages | 8 |
Journal | Journal of Agricultural and Food Chemistry |
Volume | 66 |
Issue number | 51 |
DOIs | |
Publication status | Published - 26 Dec 2018 |
Fingerprint Dive into the research topics of 'Identity and Activity of 2,4-Dichlorophenoxyacetic Acid Metabolites in Wild Radish (Raphanus raphanistrum)'. Together they form a unique fingerprint.
Projects
- 1 Finished
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Membrane Transporters Mediating 2,4-D Resistance in Wild Radish
Powles, S. & Wells, A.
Australian Research Council, Nufarm Limited
1/01/15 → 31/12/18
Project: Research