Function of two splicing variants of RcCPR5 in the resistance of Rosa chinensis to powdery mildew.
ETI；Powdery mildew
RcCPR5
Rosa chinensis
Journal
Plant science : an international journal of experimental plant biology
ISSN: 1873-2259
Titre abrégé: Plant Sci
Pays: Ireland
ID NLM: 9882015
Informations de publication
Date de publication:
Oct 2023
Oct 2023
Historique:
received:
03
08
2022
revised:
12
03
2023
accepted:
17
03
2023
medline:
31
8
2023
pubmed:
30
6
2023
entrez:
29
6
2023
Statut:
ppublish
Résumé
Rosa chinensis is an important economic and ornamental crop, but powdery mildew greatly reduces its ornamental and economic value. The RcCPR5 gene, encoding a constitutive expressor of pathogenesis-related genes, has two splicing variants in R. chinensis. Compared with RcCPR5-1, RcCPR5-2 has a large C-terminal deletion. During disease development, RcCPR5-2 responded quickly and coordinated with RcCPR5-1 to resist the invasion of the powdery mildew pathogen. In virus-induced gene silencing experiments, down-regulation of RcCPR5 improved the resistance of R. chinensis to powdery mildew. This was confirmed to be broad-spectrum resistance. In the absence of pathogen infection, RcCPR5-1 and RcCPR5-2 formed homodimers and heterodimers to regulate plant growth; but when infected by the powdery mildew pathogen, the RcCPR5-1 and RcCPR5-2 complexes disassociated and released RcSIM/RcSMR to induce effector-triggered immunity, thereby inducing resistance to pathogen infection.
Identifiants
pubmed: 37385384
pii: S0168-9452(23)00095-X
doi: 10.1016/j.plantsci.2023.111678
pii:
doi:
Substances chimiques
Plant Proteins
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
111678Informations de copyright
Copyright © 2023. Published by Elsevier B.V.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper’.