PreprintCited by 4Plant-Microbe Interactions and ImmunityPlant Disease Resistance and GeneticsPlant Pathogenic Bacteria Studies

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Exploring fern pathosystems and immune receptors to bridge gaps in plant immunity

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Preprint — published as 10.1186/s12915-025-02413-6 · Paper page

Abstract

SUMMARY: Land plants include angiosperms, bryophytes, lycophytes and ferns, each of which may deploy distinct strategies to resist pathogens. Here, we investigate fern-pathogen interactions by characterizing novel pathosystems and analysing the diversity of fern immune receptors. A collection of fern species was inoculated with a diverse set of microbes, and disease symptoms were assessed. We further leveraged published genome mining tools to analyse the diversity of RECEPTOR-LIKE KINASES, RECEPTOR-LIKE PROTEINS (RLKs/RLPs) and NUCLEOTIDE-BINDING AND LEUCINE-RICH REPEATS (NLRs), along with key immune signalling components, in ferns. Our results reveal that ferns exhibit a range of responses to pathogens, including non-host resistance and specific resistance mechanisms. Among ten ferns tested, Pteris vittata displays the broadest spectrum of pathogen compatibility. Genome mining indicates that ferns encode a diverse repertoire of putative immune receptors, antimicrobial peptides and mediators of systemic acquired resistance. Ferns possess numerous RLKs/RLPs, resembling those required for cell-surface immunity in angiosperms. They also encode diverse NLRs, including a previously undescribed class with a disordered N-terminal domain, termed disN-NLR. These findings provide insights into disease resistance evolution and open promising perspectives for crop protection strategies.

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Metadata

Authors
Castel, B., Baker, M., Keller, J., Martinez, Y., Bonhomme, M., Delaux, P.-M., & Jacquet, C.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • Fédération de Recherche Agrobiosciences, Interactions et Biodiversité (FR)
Corresponding author
Jacquet, Christophe
Venue
BMC Biology
Publisher
openRxiv
Published
2025-03-19
Volume
23
Issue
1
Pages
301-301
ISSN
1741-7007 (ISSN-L)
OpenAlex
W4414985227
Cited by
4
References
2
Citations by year
2026: 3 · 2025: 1
FWCI
2.16
Type
journal article
Language
en
Open access
Locations
  • BMC Biology (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Agence Nationale de la Recherche (ANR-10-LABX-0041, ANR-21-CE20-0010)
  • Ministère de l'Education Nationale, de l'Enseignement Supérieur et de la Recherche
  • HORIZON EUROPE European Research Council (101001675)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant-Microbe Interactions and Immunity
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Disease Resistance and Genetics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Pathogenic Bacteria Studies
Keywords
ferns, plant immunity, immune receptors, receptor-like kinases, receptor-like proteins, Pteris vittata, nonhost resistance, systemic acquired resistance, antimicrobial peptides, disease resistance evolution, genome mining
MeSH terms
Plant Diseases, Plant Proteins, Receptors, Immunologic, Ferns, Host-Pathogen Interactions, Plant Immunity, Disease Resistance

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