A new spider mite elicitor triggers plant defence and promotes resistance to herbivores

© The Author(s) 2023. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 75(2024), 5 vom: 28. Feb., Seite 1493-1509
1. Verfasser: Cui, Jia-Rong (VerfasserIn)
Weitere Verfasser: Zhou, Bin, Tang, Yi-Jing, Zhou, Jia-Yi, Ren, Lu, Liu, Fan, Hoffmann, Ary A, Hong, Xiao-Yue
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Tetranychus evansi Defence responses Te16 elicitor mite-plant interactions resistance
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520 |a Herbivore-associated elicitors (HAEs) are active molecules produced by herbivorous insects. Recognition of HAEs by plants induces defence that resist herbivore attacks. We previously demonstrated that the tomato red spider mite Tetranychus evansi triggered defence in Nicotiana benthamiana. However, our knowledge of HAEs from T. evansi remains limited. Here, we characterize a novel HAE, Te16, from T. evansi and dissect its function in mite-plant interactions. We investigate the effects of Te16 on spider mites and plants by heterologous expression, virus-induced gene silencing assay, and RNA interference. Te16 induces cell death, reactive oxygen species (ROS) accumulation, callose deposition, and jasmonate (JA)-related responses in N. benthamiana leaves. Te16-mediated cell death requires a calcium signalling pathway, cytoplasmic localization, the plant co-receptor BAK1, and the signalling components SGT1 and HSP90. The active region of Te16-induced cell death is located at amino acids 114-293. Moreover, silencing Te16 gene in T. evansi reduces spider mite survival and hatchability, but expressing Te16 in N. benthamiana leaves enhances plant resistance to herbivores. Finally, Te16 gene is specific to Tetranychidae species and is highly conserved in activating plant immunity. Our findings reveal a novel salivary protein produced by spider mites that elicits plant defence and resistance to insects, providing valuable clues for pest management 
650 4 |a Journal Article 
650 4 |a Tetranychus evansi 
650 4 |a Defence responses 
650 4 |a Te16 
650 4 |a elicitor 
650 4 |a mite-plant interactions 
650 4 |a resistance 
700 1 |a Zhou, Bin  |e verfasserin  |4 aut 
700 1 |a Tang, Yi-Jing  |e verfasserin  |4 aut 
700 1 |a Zhou, Jia-Yi  |e verfasserin  |4 aut 
700 1 |a Ren, Lu  |e verfasserin  |4 aut 
700 1 |a Liu, Fan  |e verfasserin  |4 aut 
700 1 |a Hoffmann, Ary A  |e verfasserin  |4 aut 
700 1 |a Hong, Xiao-Yue  |e verfasserin  |4 aut 
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