ArticleJournal of experimental botany2025
Phenylacetic acid metabolism in land plants: novel pathways and metabolites.
Article in Journal of experimental botany, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- GH3 phylogenetic subgroups define divergent routes of auxin inactivation via aspartate and glutamine conjugation.Plant physiology · 2026Article
- Chemical priming of hypoxia responses via PLANT CYSTEINE OXIDASE inhibition improves flooding tolerance.Plant physiology · 2026Article
- Synthesis, Crystal Structure, Hirshfeld Surface, RDG, ELF, LOL, DFT, and Molecular Docking Studies of a Binuclear Copper(II) Carboxylate Complex.ChemistryOpen · 2026Article
- Hormone-centric multi-omics atlas of flower and early fruit development in tomato.Plant communications · 2026Article
- The Plant of Many Scents: Unraveling the Odorant Composition of Selected CBD Hemp Cultivars.Journal of agricultural and food chemistry · 2025Article
- Auxin homeostasis: new roads in a tight network.Journal of experimental botany · 2025Article
- Phenylacetic acid metabolism in land plants: novel pathways and metabolites.Journal of experimental botany · 2025Article
- Glycosylation pathways in auxin homeostasis.Physiologia plantarumReview
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Authors and funding
10 authors.
Funding
Abstract
In recent years, substantial progress has been made in exploring auxin conjugation and metabolism, primarily aiming at indole-3-acetic acid (IAA). However, the metabolic regulation of another key auxin, phenylacetic acid (PAA), remains largely uncharacterized. Here, we provide a comprehensive exploration of PAA metabolism in land plants. Through LC-MS screening across multiple plant species and their organs, we identified four previously unreported endogenous PAA metabolites: phenylacetyl-leucine, phenylacetyl-phenylalanine, phenylacetyl-valine, and phenylacetyl-glucose. Enzyme assays, genetic evidence, crystal structures, and docking studies demonstrate that PAA and IAA share core metabolic machinery, revealing a complex regulatory network that maintains auxin homeostasis. Furthermore, our study of PAA conjugation with amino acids and glucose suggests limited compensatory mechanisms within known conjugation pathways, pointing to the existence of alternative metabolic routes in land plants. These insights advance our knowledge of auxin-specific metabolic networks and highlight the unique complexity within plant hormone regulation.
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