ArticleThe Plant cell2013
Two herbivore-induced cytochrome P450 enzymes CYP79D6 and CYP79D7 catalyze the formation of volatile aldoximes involved in poplar defense.
Article in The Plant cell, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 1 of them a synthesis that pooled it.
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Who cites it
61 citing papers in PubMed, 1 synthesis or guideline pooled it, 127 citations in OpenAlex.
- Integration of meta-analysis, machine learning and systems biology approach for investigating the transcriptomic response to drought stress in Populus species.Scientific reports · 2023Pooled it
- A herbivore-inducible CYP82 catalyzes DMNT formation in Idesia polycarpa leaves.BMC plant biology · 2026Article
- Emission Dynamics of Constitutive and Herbivore-induced Plant Volatiles from Norway Maple (Acer platanoides) Trunk Infested by the Asian Longhorned Beetle (Anoplophora glabripennis (Motschulsky)).Journal of chemical ecology · 2026Article
- Aldoximes serve as auxin precursors and repress phenylpropanoid metabolism in tomato.bioRxiv : the preprint server for biology · 2026Article
- Towards an official gene nomenclature for Populus trichocarpa.Tree physiology · 2025Review
- Induction by caterpillars of stored and emitted volatiles in terpene chemotypes from populations of wild cotton (Gossypium hirsutum).BMC plant biology · 2025Article
- Robotic mechanical wounding is sufficient to induce phenylacetaldoxime accumulation inPlant signaling & behavior · 2024Article
- A Convenient Route to Large-Scale Chemical Synthesis ofACS omega · 2024Article
- Integrated pathway mining and selection of an artificial CYP79-mediated bypass to improve benzylisoquinoline alkaloid biosynthesis.Microbial cell factories · 2024Article
- Reinventing metabolic pathways: Independent evolution of benzoxazinoids in flowering plants.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Article
- Dynamic environmental interactions shaped by vegetative plant volatiles.Natural product reports · 2023Review
- Recruitment of distinct UDP-glycosyltransferase families demonstrates dynamic evolution of chemical defense within Eucalyptus L'Hér.The New phytologist · 2023Article
- Occurrence, Function, and Biosynthesis of the Natural Auxin Phenylacetic Acid (PAA) in Plants.Plants (Basel, Switzerland) · 2023Review
- Comprehensive and evolutionary analysis ofFrontiers in plant science · 2023Article
- Metabolic link between auxin production and specialized metabolites in Sorghum bicolor.Journal of experimental botany · 2023Article
- Insights into the Cytochrome P450 Monooxygenase Superfamily inInternational journal of molecular sciences · 2022Article
- A flavin-dependent monooxygenase produces nitrogenous tomato aroma volatiles using cysteine as a nitrogen source.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Mycorrhiza-Tree-Herbivore Interactions: Alterations in Poplar Metabolome and Volatilome.Metabolites · 2022Article
- Volatiles Emission byMolecules (Basel, Switzerland) · 2021Article
1 more citing papers are in PubMed but not listed here.
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Authors and funding
11 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Aldoximes are known as floral and vegetative plant volatiles but also as biosynthetic intermediates for other plant defense compounds. While the cytochrome P450 monooxygenases (CYP) from the CYP79 family forming aldoximes as biosynthetic intermediates have been intensively studied, little is known about the enzymology of volatile aldoxime formation. We characterized two P450 enzymes, CYP79D6v3 and CYP79D7v2, which are involved in herbivore-induced aldoxime formation in western balsam poplar (Populus trichocarpa). Heterologous expression in Saccharomyces cerevisiae revealed that both enzymes produce a mixture of different aldoximes. Knockdown lines of CYP79D6/7 in gray poplar (Populus × canescens) exhibited a decreased emission of aldoximes, nitriles, and alcohols, emphasizing that the CYP79s catalyze the first step in the formation of a complex volatile blend. Aldoxime emission was found to be restricted to herbivore-damaged leaves and is closely correlated with CYP79D6 and CYP79D7 gene expression. The semi-volatile phenylacetaldoxime decreased survival and weight gain of gypsy moth (Lymantria dispar) caterpillars, suggesting that aldoximes may be involved in direct defense. The wide distribution of volatile aldoximes throughout the plant kingdom and the presence of CYP79 genes in all sequenced genomes of angiosperms suggest that volatile formation mediated by CYP79s is a general phenomenon in the plant kingdom.
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