Glucosinolate Metabolites Required for an Arabidopsis Innate Immune Response
Open accessAbstract
The perception of pathogen or microbe-associated molecular pattern molecules by plants triggers a basal defense response analogous to animal innate immunity and is defined partly by the deposition of the glucan polymer callose at the cell wall at the site of pathogen contact. Transcriptional and metabolic profiling in Arabidopsis mutants, coupled with the monitoring of pathogen-triggered callose deposition, have identified major roles in pathogen response for the plant hormone ethylene and the secondary metabolite 4-methoxy-indol-3-ylmethylglucosinolate. Two genes, PEN2 and PEN3 , are also necessary for resistance to pathogens and are required for both callose deposition and glucosinolate activation, suggesting that the pathogen-triggered callose response is required for resistance to microbial pathogens. Our study shows that well-studied plant metabolites, previously identified as important in avoiding damage by herbivores, are also required as a component of the plant defense response against microbial pathogens.
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The myrosinase PEN2 is required for glucosinolate breakdown in callose regulation.
“The myrosinase PEN2 is required for this phenomenon, implicating glucosinolate breakdown in callose regulation (Clay et al., 2009).”
From Plant Secondary Metabolites as Defenses, Regulators, and Primary Metabolites: The Blurred Functional Trichotomy (2020) · cites this paper as Clay et al., 2009
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- Authors
- Clay, N. K., Adio, A. M., Denoux, C., Jander, G., & Ausubel, F. M.
- Affiliations
- Harvard University (US)
- Corresponding author
- Ausubel, Frederick M.
- Venue
- Science
- Published
- 2009-01-02
- Volume
- 323
- Issue
- 5910
- Pages
- 95-101
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- PMC
- PMC2630859
- OpenAlex
- W1995828353
- Cited by
- 1,098
- References
- 0
- Citations by year
- 2026: 26 · 2025: 33 · 2024: 49 · 2023: 65 · 2022: 84 · 2021: 66 · 2020: 76 · 2019: 71 · 2018: 56 · 2017: 75 · 2016: 68 · 2015: 62 · 2014: 73 · 2013: 67 · 2012: 57
- FWCI
- 68.31
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute of General Medical Sciences (R37 GM48707, R37GM048707)
- National Institute of Allergy and Infectious Diseases (F32AI066817)
- 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 › Immunology and Microbiology › Immunology › Immune Response and Inflammation
- Keywords
- glucosinolates, plant innate immunity, callose deposition, Arabidopsis thaliana, ethylene, Pen-2, PEN3, pathogen resistance, plant defense signaling
- MeSH terms
- Ethylenes, Flagellin, Glucans, Glucosinolates, Glycoside Hydrolases, Hydrolysis, Immunity, Innate, Indoles, Mutation, N-Glycosyl Hydrolases, Peptide Fragments, Transcription Factors, Signal Transduction, Genes, Plant, Arabidopsis, Gene Expression Regulation, Plant, ATP-Binding Cassette Transporters, Aminoacyltransferases, Salicylic Acid, Arabidopsis Proteins
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