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CEP signaling coordinates plant immunity with nitrogen status.
Nat. Commun. 15:10686 (2024)
Plant endogenous signaling peptides shape growth, development and adaptations to biotic and abiotic stress. Here, we identify C-TERMINALLY ENCODED PEPTIDEs (CEPs) as immune-modulatory phytocytokines in Arabidopsis thaliana. Our data reveals that CEPs induce immune outputs and are required to mount resistance against the leaf-infecting bacterial pathogen Pseudomonas syringae pv. tomato. We show that effective immunity requires CEP perception by tissue-specific CEP RECEPTOR 1 (CEPR1) and CEPR2. Moreover, we identify the related RECEPTOR-LIKE KINASE 7 (RLK7) as a CEP4-specific CEP receptor contributing to CEP-mediated immunity, suggesting a complex interplay of multiple CEP ligands and receptors in different tissues during biotic stress. CEPs have a known role in the regulation of root growth and systemic nitrogen (N)-demand signaling. We provide evidence that CEPs and their receptors promote immunity in an N status-dependent manner, suggesting a previously unknown molecular crosstalk between plant nutrition and cell surface immunity. We propose that CEPs and their receptors are central regulators for the adaptation of biotic stress responses to plant-available resources.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Innate Immunity; Expression Patterns; Disease Resistance; Secreted Peptide; Lateral Root; Arabidopsis; Receptor; Gene; Shoot; Flagellin
ISSN (print) / ISBN
2041-1723
e-ISSN
2041-1723
Journal
Nature Communications
Quellenangaben
Volume: 15,
Issue: 1,
Article Number: 10686
Publisher
Nature Publishing Group
Publishing Place
London
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Research Unit Environmental Simulation (EUS)
Grants
European Research Council (ERC)
Deutsche Forschungsgemeinschaft (DFG)
Technical University of Munich
Research Council of Norway
Australian Research Council
University of Lausanne
Swiss National Science Foundation
Deutsche Forschungsgemeinschaft (German Research Foundation)
Deutsche Forschungsgemeinschaft (DFG)
Technical University of Munich
Research Council of Norway
Australian Research Council
University of Lausanne
Swiss National Science Foundation
Deutsche Forschungsgemeinschaft (German Research Foundation)