ArticleBMC plant biology2024
Investigation of resistance mechanisms to flucarbazone-sodium in wild oat (Avena fatua L.) from China.
Article in BMC plant biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundWild oat (Avena fatua L.) is a self-pollinating, allohexaploid species in the family Gramineae (grasses), which is a malignant weed that mainly harms crops such as wheat. In recent years, a decline in the control efficiency of flucarbazone-sodium against wild oat has occurred in some regions of China.
resultsWe identified an ALS-resistant A. fatua population (R population). Whole-plant response assays revealed that the R population exhibited a moderate level of resistance (5.9-fold) to flucarbazone-sodium. Pre-treatment with malathion significantly reduced flucarbazone-sodium resistance in the R population. The known mutation sites and ALS gene relative expression that confer resistance to ALS inhibitor herbicides were not found in R population. Following flucarbazone-sodium treatment, the expression of eight genes related to metabolic enzymes was investigated using quantitative real-time PCR (qRT-PCR). CYP92A6 and the Aldo/keto reductase family were highly expressed in the R population after the application of flucarbazone-sodium.
conclusionsThe mechanism of flucarbazone-sodium resistance in A. fatua is mediated by NTSR, nor TSR. Two genes, CYP92A6 and the Aldo/keto reductase family, were discovered to be possibly related in the metabolism of NTSR in the A. fatua population, justifying more functional studies. The results will serve as a data resource for further studies on the molecular mechanisms of A. fatua to flucarbazone-sodium.
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