The helper NLR immune protein NRC3 mediates the hypersensitive cell death caused by the cell-surface receptor Cf-4
Author(s)
Type
Journal Article
Abstract
Cell surface pattern recognition receptors (PRRs) activate immune responses that can include the hypersensitive cell death. However, the pathways that link PRRs to the cell death response are poorly understood. Here, we show that the cell surface receptor-like protein Cf-4 requires the intracellular nucleotide-binding domain leucine-rich repeat containing receptor (NLR) NRC3 to trigger a confluent cell death response upon detection of the fungal effector Avr4 in leaves of Nicotiana benthamiana. This NRC3 activity requires an intact N-terminal MADA motif, a conserved signature of coiled-coil (CC)-type plant NLRs that is required for resistosome-mediated immune responses. A chimeric protein with the N-terminal α1 helix of Arabidopsis ZAR1 swapped into NRC3 retains the capacity to mediate Cf-4 hypersensitive cell death. Pathogen effectors acting as suppressors of NRC3 can suppress Cf-4-triggered hypersensitive cell-death. Our findings link the NLR resistosome model to the hypersensitive cell death caused by a cell surface PRR.
Date Issued
2022-09-22
Date Acceptance
2022-09-06
Citation
PLoS Genetics, 2022, 18 (9)
ISSN
1553-7390
Publisher
Public Library of Science (PLoS)
Journal / Book Title
PLoS Genetics
Volume
18
Issue
9
Copyright Statement
© 2022 Kourelis et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
License URL
Identifier
https://www.ncbi.nlm.nih.gov/pubmed/36137148
PII: PGENETICS-D-22-00212
Subjects
Arabidopsis
Arabidopsis Proteins
Carrier Proteins
Cell Death
Leucine
NLR Proteins
Nucleotides
Plant Diseases
Plant Immunity
Plant Proteins
Receptors, Pattern Recognition
Recombinant Fusion Proteins
Publication Status
Published
Coverage Spatial
United States
Article Number
ARTN e1010414