Revista Brasileira De Herbicidas 2002; 3(2-3): 155-161
Plant resistance to herbicides inhibitors ofthe enzyme acetyl coenzyme A carboxilase (ACCase)
Weeds resistant to herbicide inhibitors of the enzyme ACCase present great economic importance throughout the world, due to the wide area infested and limited number of alternative herbicides and/or mechanisms of action availables for their control, This literature review intends to elucidate the mechanisms of weed resistance and of crop tolerance to herbicides inhibitors of ACCase. Weed resistance to ACCase inhibitors is due to alterations in the action site, plant metabolism, and membrane repolarization. Crop tolerance to these herbicides is due to alterations in the action site and to metabolismo The development of tolerant cultivars to ACCase inhibitors will allow selective control of weeds, constituting a promising alternative to manage and control weed species currently problematic. The introduction of herbicides with different mechanisms of action for grass weed control or the use of ACCase inhibitors jointly with herbicides differing in mechanism of action, associated with integrated weed management, are important strategies to be adopted in order to avoid appearance of resistance and to extend the period of utilization of such herbicides.
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