Article (Scientific journals)
SmCSP4 from aphid saliva stimulates salicylic acid-mediated defence responses in wheat by interacting with transcription factor TaWKRY76
Zhang, Yong; Fu, Yu; Liu, Xiaobei et al.
2023In Plant Biotechnology Journal, 21 (11), p. 2389 - 2407
Peer Reviewed verified by ORBi
 

Files


Full Text
SmCSP4 from aphid saliva stimulates salicylic acid‐mediated defence responses in wheat by interactin.pdf
Publisher postprint (469.37 kB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
chemosensory protein; grain aphid; molecular basis; plant immunity; salicylic acid; salivary elicitor; Animals; Aphids; Salicylic Acid; Saliva; Transcription Factors; Triticum; transcription factor; animal; aphid; genetics; metabolism; physiology; saliva; wheat
Abstract :
[en] Aphid salivary proteins are critical in modulating plant defence responses. Grain aphid Sitobion miscanthi is an important wheat pest worldwide. However, the molecular basis for the regulation of the plant resistance to cereal aphids remains largely unknown. Here, we show that SmCSP4, a chemosensory protein from S. miscanthi saliva, is secreted into wheat plants during aphid feeding. Delivery of SmCSP4 into wheat leaves activates salicylic acid (SA)-mediated plant defence responses and subsequently reduces aphid performance by deterring aphid feeding behaviour. In contrast, silencing SmCSP4 gene via nanocarrier-mediated RNAi significantly decreases the ability of aphids to activate SA defence pathway. Protein–protein interaction assays showed that SmCSP4 directly interacts with wheat transcriptional factor TaWRKY76 in plant nucleus. Furthermore, TaWRKY76 directly binds to the promoter of SA degradation gene Downy Mildew Resistant 6 (DMR6) and regulates its gene expression as transcriptional activator. SmCSP4 secreted by aphids reduces the transcriptional activation activity of TaWRKY76 on DMR6 gene expression, which is proposed to result in increases of SA accumulation and enhanced plant immunity. This study demonstrated that SmCSP4 acts as salivary elicitor that is involved in activating SA signalling defence pathway of wheat by interacting with TaWRKY76, which provide novel insights into aphid-cereal crops interactions and the molecular mechanism on induced plant immunity. © 2023 The Authors. Plant Biotechnology Journal published by Society for Experimental Biology and The Association of Applied Biologists and John Wiley & Sons Ltd.
Disciplines :
Entomology & pest control
Author, co-author :
Zhang, Yong;  State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
Fu, Yu ;  Université de Liège - ULiège > TERRA Research Centre ; PHIM Plant Health Institute, Univ Montpellier, INRAE, CIRAD, Institut Agro, IRD, Montpellier, France
Liu, Xiaobei ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech > Form. doct. sc. agro. & ingé. biol. (paysage) ; State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
Francis, Frédéric  ;  Université de Liège - ULiège > TERRA Research Centre > Gestion durable des bio-agresseurs
Fan, Jia;  State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
Liu, Huan;  State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
Wang, Qiang ;  Université de Liège - ULiège ; State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China ; Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, China
Sun, Yu;  State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
Zhang, Yumeng;  State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China ; College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China
Chen, Julian;  State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
Language :
English
Title :
SmCSP4 from aphid saliva stimulates salicylic acid-mediated defence responses in wheat by interacting with transcription factor TaWKRY76
Publication date :
04 August 2023
Journal title :
Plant Biotechnology Journal
ISSN :
1467-7644
eISSN :
1467-7652
Publisher :
John Wiley and Sons Inc
Volume :
21
Issue :
11
Pages :
2389 - 2407
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
NSCF - National Natural Science Foundation of China
Funding number :
2023YFD1700304; 31871979; 31901881; CAAS-ZDRW202108; IVM10051
Available on ORBi :
since 20 March 2025

Statistics


Number of views
34 (0 by ULiège)
Number of downloads
17 (0 by ULiège)

Scopus citations®
 
36
Scopus citations®
without self-citations
32
OpenCitations
 
2
OpenAlex citations
 
41

Bibliography


Similar publications



Contact ORBi