Negative regulators of plant immunity derived from cinnamyl alcohol dehydrogenases are targeted by multiple Phytophthora Avr3a-like effectors

© 2019 The Authors. New Phytologist © 2019 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - (2019) vom: 22. Aug.
1. Verfasser: Li, Tingting (VerfasserIn)
Weitere Verfasser: Wang, Qinhu, Feng, Ruirui, Li, Licai, Ding, Liwen, Fan, Guangjin, Li, Weiwei, Du, Yu, Zhang, Meixiang, Huang, Guiyan, Schäfer, Patrick, Meng, Yuling, Tyler, Brett M, Shan, Weixing
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Phytophthora Avr3a CAD7 RXLR effector host target plant immunity
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520 |a Oomycete pathogens secrete numerous effectors to manipulate host immunity. While some effectors share a conserved structural fold, it remains unclear if any have conserved host targets. Avr3a-like family effectors, which are related to Phytophthora infestans effector PiAvr3a and are widely distributed across diverse clades of Phytophthora species, were used to study this question. By using yeast-two-hybrid, bimolecular fluorescence complementation and co-immunoprecipitation assays, we identified members of the plant cinnamyl alcohol dehydrogenase 7 (CAD7) subfamily as targets of multiple Avr3a-like effectors from Phytophthora pathogens. The CAD7 subfamily has expanded in plant genomes but lost the lignin biosynthetic activity of canonical CAD subfamilies. In turn, we identified CAD7s as negative regulators of plant immunity that are induced by Phytophthora infection. Moreover, AtCAD7 was stabilized by Avr3a-like effectors and involved in suppression of pathogen-associated molecular pattern-triggered immunity, including callose deposition, reactive oxygen species burst and WRKY33 expression. Our results reveal CAD7 subfamily proteins as negative regulators of plant immunity that are exploited by multiple Avr3a-like effectors to promote infection in different host plants 
650 4 |a Journal Article 
650 4 |a Phytophthora 
650 4 |a Avr3a 
650 4 |a CAD7 
650 4 |a RXLR effector 
650 4 |a host target 
650 4 |a plant immunity 
700 1 |a Wang, Qinhu  |e verfasserin  |4 aut 
700 1 |a Feng, Ruirui  |e verfasserin  |4 aut 
700 1 |a Li, Licai  |e verfasserin  |4 aut 
700 1 |a Ding, Liwen  |e verfasserin  |4 aut 
700 1 |a Fan, Guangjin  |e verfasserin  |4 aut 
700 1 |a Li, Weiwei  |e verfasserin  |4 aut 
700 1 |a Du, Yu  |e verfasserin  |4 aut 
700 1 |a Zhang, Meixiang  |e verfasserin  |4 aut 
700 1 |a Huang, Guiyan  |e verfasserin  |4 aut 
700 1 |a Schäfer, Patrick  |e verfasserin  |4 aut 
700 1 |a Meng, Yuling  |e verfasserin  |4 aut 
700 1 |a Tyler, Brett M  |e verfasserin  |4 aut 
700 1 |a Shan, Weixing  |e verfasserin  |4 aut 
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