ArticleJournal of experimental botany2022
The transcription factor TaMYB31 regulates the benzoxazinoid biosynthetic pathway in wheat.
Article in Journal of experimental botany, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 22 citations in OpenAlex.
- Plant Volatile Methyl Salicylate Primes Wheat Defense Against the Grain Aphid by Altering the Synthesis of Defense Metabolites.Plant, cell & environment · 2026Article
- Evolutionary divergence and regulatory landscapes of benzoxazinoid metabolism in monocot crops.Plant cell reports · 2026Review
- Integration of the D-Genome Reshapes Gene Transcription, Chromatin Architecture, and Metabolome of Allohexaploid Wheat, Leading to Enhanced Environmental Adaptability.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Dual role of benzoxazinoids in plant response to combined drought stress and aphid feeding.Plant biology (Stuttgart, Germany) · 2026Article
- Metabolite-based resistance in wheat varieties to aphid virus vectors: progress and future opportunities.Pest management science · 2025Review
- Genome-wide association study of pre-harvest sprouting resistance and grain color in common wheat (Triticum aestivum L.).BMC plant biology · 2025Article
- Molecular Interactions Between Plants and Aphids: Recent Advances and Future Perspectives.Insects · 2024Review
- Genome-Wide Identification and Expression Analysis ofPlants (Basel, Switzerland) · 2024Article
- Chemically Mediated Plant-Plant Interactions: Allelopathy and Allelobiosis.Plants (Basel, Switzerland) · 2024Review
- Isolation and Structure Determination of Drought-Induced Multihexose Benzoxazinoids from Maize (Journal of agricultural and food chemistry · 2024Article
- Wheat Omics: Advancements and Opportunities.Plants (Basel, Switzerland) · 2023Review
- New insights into the transcriptional regulation of benzoxazinoid biosynthesis in wheat.Journal of experimental botany · 2022Article
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5 authors at 2 institutions in 1 country.
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Abstract
Benzoxazinoids are specialized metabolites that are highly abundant in staple crops, such as maize and wheat. Although their biosynthesis has been studied for several decades, the regulatory mechanisms of the benzoxazinoid pathway remain unknown. Here, we report that the wheat transcription factor MYB31 functions as a regulator of benzoxazinoid biosynthesis genes. A transcriptomic analysis of tetraploid wheat (Triticum turgidum) tissue revealed the up-regulation of two TtMYB31 homoeologous genes upon aphid and caterpillar feeding. TaMYB31 gene silencing in the hexaploid wheat Triticum aestivum significantly reduced benzoxazinoid metabolite levels and led to susceptibility to herbivores. Thus, aphid progeny production, caterpillar body weight gain, and spider mite oviposition significantly increased in TaMYB31-silenced plants. A comprehensive transcriptomic analysis of hexaploid wheat revealed that the TaMYB31 gene is co-expressed with the target benzoxazinoid-encoded Bx genes under several biotic and environmental conditions. Therefore, we analyzed the effect of abiotic stresses on benzoxazinoid levels and discovered a strong accumulation of these compounds in the leaves. The results of a dual fluorescence assay indicated that TaMYB31 binds to the Bx1 and Bx4 gene promoters, thereby activating the transcription of genes involved in the benzoxazinoid pathway. Our finding is the first report of the transcriptional regulation mechanism of the benzoxazinoid pathway in wheat.
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