ArticleJournal of experimental botany2020
Transcriptional analysis of arogenate dehydratase genes identifies a link between phenylalanine biosynthesis and lignin biosynthesis.
Article in Journal of experimental botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 32 citations in OpenAlex.
- Integrated proteomic and transcriptomic analyses of Citrus australasica in response to Candidatus Liberibacter asiaticus infection.BMC plant biology · 2025Article
- Advanced imaging-enabled understanding of cell wall remodeling mechanisms mediating plant drought stress tolerance.Frontiers in plant science · 2025Review
- Combined multi-omics and physiological approaches to elucidate drought-response mechanisms of durum wheat.Frontiers in plant science · 2025Article
- Article
- Metabolomic Analysis of Wheat Grains afterMetabolites · 2022Article
- Deregulation of phenylalanine biosynthesis evolved with the emergence of vascular plants.Plant physiology · 2022Article
- Identification of Metabolic Pathways Differentially Regulated in Somatic and Zygotic Embryos of Maritime Pine.Frontiers in plant science · 2022Article
- Constitutive Overexpression of a ConiferFrontiers in plant science · 2022Article
- Transcriptome provides potential insights into how calcium affects the formation of stone cell in Pyrus.BMC genomics · 2021Article
- Functional Characterization ofPlants (Basel, Switzerland) · 2021Article
- Genome-Wide Analysis Reveals the Potential Role of MYB Transcription Factors in Floral Scent Formation inFrontiers in plant science · 2021Article
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Authors and funding
9 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Biogenesis of the secondary cell wall in trees involves the massive biosynthesis of the phenylalanine-derived polymer lignin. Arogenate dehydratase (ADT) catalyzes the last, and rate-limiting, step of the main pathway for phenylalanine biosynthesis. In this study, we found that transcript levels for several members of the large ADT gene family, including ADT-A and ADT-D, were enhanced in compression wood of maritime pine, a xylem tissue enriched in lignin. Transcriptomic analysis of maritime pine silenced for PpMYB8 revealed that this gene plays a critical role in coordinating the deposition of lignin with the biosynthesis of phenylalanine. Specifically, it was found that ADT-A and ADT-D were strongly down-regulated in PpMYB8-silenced plants and that they were transcriptionally regulated through direct interaction of this transcription factor with regulatory elements present in their promoters. Another transcription factor, PpHY5, exhibited an expression profile opposite to that of PpMYB8 and also interacted with specific regulatory elements of ADT-A and ADT-D genes, suggesting that it is involved in transcriptional regulation of phenylalanine biosynthesis. Taken together, our results reveal that PpMYB8 and PpHY5 are involved in the control of phenylalanine formation and its metabolic channeling for lignin biosynthesis and deposition during wood formation in maritime pine.
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