Synthetic auxin herbicides : finding the lock and key to weed resistance

Copyright © 2020 The Authors. Published by Elsevier B.V. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant science : an international journal of experimental plant biology. - 1985. - 300(2020) vom: 12. Nov., Seite 110631
1. Verfasser: Todd, Olivia E (VerfasserIn)
Weitere Verfasser: Figueiredo, Marcelo R A, Morran, Sarah, Soni, Neeta, Preston, Christopher, Kubeš, Martin F, Napier, Richard, Gaines, Todd A
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Plant science : an international journal of experimental plant biology
Schlagworte:Journal Article Review 2,4-D Aux/IAA dicamba herbicide metabolism herbicide resistance Herbicides Indoleacetic Acids Plant Growth Regulators mehr... indoleacetic acid 6U1S09C61L
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520 |a Synthetic auxin herbicides are designed to mimic indole-3-acetic acid (IAA), an integral plant hormone affecting cell growth, development, and tropism. In this review, we explore target site genes in the auxin signaling pathway including SCFTIR1/AFB, Aux/IAA, and ARFs that are confirmed or proposed mechanisms for weed resistance to synthetic auxin herbicides. Resistance to auxin herbicides by metabolism, either by enhanced cytochrome P450 detoxification or by loss of pro-herbicide activation, is a major non-target-site resistance pathway. We speculate about potential fitness costs of resistance due to effects of resistance-conferring mutations, provide insight into the role of polyploidy in synthetic auxin resistance evolution, and address the genetic resources available for weeds. This knowledge will be the key to unlock the long-standing questions as to which components of the auxin signaling pathway are most likely to have a role in resistance evolution. We propose that an ambitious research effort into synthetic auxin herbicide/target site interactions is needed to 1) explain why some synthetic auxin chemical families have activity on certain dicot plant families but not others and 2) fully elucidate target-site cross-resistance patterns among synthetic auxin chemical families to guide best practices for resistance management 
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700 1 |a Figueiredo, Marcelo R A  |e verfasserin  |4 aut 
700 1 |a Morran, Sarah  |e verfasserin  |4 aut 
700 1 |a Soni, Neeta  |e verfasserin  |4 aut 
700 1 |a Preston, Christopher  |e verfasserin  |4 aut 
700 1 |a Kubeš, Martin F  |e verfasserin  |4 aut 
700 1 |a Napier, Richard  |e verfasserin  |4 aut 
700 1 |a Gaines, Todd A  |e verfasserin  |4 aut 
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