Cited by 323Plant-Microbe Interactions and ImmunityInsect-Plant Interactions and ControlPlant biochemistry and biosynthesis

Monoterpenes Support Systemic Acquired Resistance within and between Plants

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Riedlmeier, Marlies, Ghirardo, Andrea, Wenig, Marion, Knappe, Claudia, Koch, Kerstin, Georgii, Elisabeth, Dey, Sanjukta, Parker, Jane E. +2 more·2017·The Plant Cell

Abstract

This study investigates the role of volatile organic compounds in systemic acquired resistance (SAR), a salicylic acid (SA)-associated, broad-spectrum immune response in systemic, healthy tissues of locally infected plants. Gas chromatography coupled to mass spectrometry analyses of SAR-related emissions of wild-type and non-SAR-signal-producing mutant plants associated SAR with monoterpene emissions. Headspace exposure of Arabidopsis thaliana to a mixture of the bicyclic monoterpenes α-pinene and β-pinene induced defense, accumulation of reactive oxygen species, and expression of SA- and SAR-related genes, including the SAR regulatory AZELAIC ACID INDUCED1 (AZI1) gene and three of its paralogs. Pinene-induced resistance was dependent on SA biosynthesis and signaling and on AZI1. Arabidopsis geranylgeranyl reductase1 mutants with reduced monoterpene biosynthesis were SAR-defective but mounted normal local resistance and methyl salicylate-induced defense responses, suggesting that monoterpenes act in parallel with SA. The volatile emissions from SAR signal-emitting plants induced defense in neighboring plants, and this was associated with the presence of α-pinene, β-pinene, and camphene in the emissions of the “sender” plants. Our data suggest that monoterpenes, particularly pinenes, promote SAR, acting through ROS and AZI1, and likely function as infochemicals in plant-to-plant signaling, thus allowing defense signal propagation between neighboring plants.

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  • In Arabidopsis, geranylgeranyl reductase1 mutants are defective in systemic acquired resistance against P. syringae; adding a- and b-pinene restores resistance, depending on salicylic acid signaling and AZI1.

    “In Arabidopsis, geranylgeranyl reductase1 mutants are defective in systemic acquired resistance against P. syringae (Riedlmeier et al., 2017).Adding the pathogen-induced volatiles aand b-pinene to the headspace of the mutant restores resistance, with the response depending on intact salicylic acid signaling and the AZELAIC ACID INDUCED (AZI1) gene (Riedlmeier et al., 2017).”

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Authors
Riedlmeier, M., Ghirardo, A., Wenig, M., Knappe, C., Koch, K., Georgii, E., Dey, S., Parker, J. E., Schnitzler, J.-P., & Vlot, A. C.
Affiliations
  • Helmholtz Munich (DE)
  • Max Planck Institute for Plant Breeding Research (DE)
Venue
The Plant Cell
Published
2017-05-23
Volume
29
Issue
6
Pages
1440-1459
ISSN
  • 1040-4651 (ISSN-L)
  • 1532-298X
OpenAlex
W2619391819
Cited by
323
References
95
Citations by year
2026: 32 · 2025: 49 · 2024: 44 · 2023: 38 · 2022: 39 · 2021: 46 · 2020: 30 · 2019: 19 · 2018: 23 · 2017: 2
FWCI
19.93
Type
journal article
Language
en
Open access
Locations
  • The Plant Cell (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
  • Max Planck Digital Library (submittedVersion)
  • Site cant be reached (submittedVersion)
  • PuSH - Publication Server of Helmholtz Zentrum München (submittedVersion)
Funders
  • Deutsche Forschungsgemeinschaft (DFG) (SFB924)
  • German federal ministry for education and research (DPPN 031A053C)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant-Microbe Interactions and Immunity
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect-Plant Interactions and Control
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Plant biochemistry and biosynthesis
Keywords
systemic acquired resistance, monoterpenes, α-pinene, β-pinene, camphor, volatile organic compounds, salicylic acid, reactive oxygen species, geranylgeranyl reductase, methyl salicylate, semiochemicals, Arabidopsis thaliana, plant defense
MeSH terms
Bicyclic Monoterpenes, Bridged Bicyclo Compounds, Immunity, Innate, Signal Transduction, Arabidopsis, Reactive Oxygen Species, Gene Expression Regulation, Plant, Salicylic Acid, Arabidopsis Proteins, Monoterpenes

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