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Arabidopsis VQ10 interacts with WRKY8 to modulate basal defense against Botrytis cinerea
Chen, Junqiu1; Wang, Houping1; Li, Yang1; Pan, Jinjing1; Hu, Yanru; Yu, Diqiu
2018
Source PublicationJOURNAL OF INTEGRATIVE PLANT BIOLOGY
ISSN1672-9072
Volume60Issue:10Pages:956-969
Abstract

Recent studies in Arabidopsis have revealed that some VQ motif-containing proteins physically interact with WRKY transcription factors; however, their specific biological functions are still poorly understood. In this study, we confirmed the interaction between Vgio and WRKY8, and show that Vgio and WRKY8 formed a complex in the plant cell nucleus. Yeast two-hybrid analysis showed that the middle region of WRKY8 and the VQ motif of VQ10 are critical for their interaction, and that this interaction promotes the DNA-binding activity of WRKY8. Further investigation revealed that the VQ10 protein was exclusively localized in the nucleus, and VQ10 was predominantly expressed in siliques. VQ10 expression was strongly responsive to the necrotrophic fungal pathogen, Botrytis cinerea and defense-related hormones. Phenotypic analysis showed that disruption of VQ10 increased mutant plants susceptibility to the fungal pathogen B. cinerea, whereas constitutive-expression of VQ10 enhanced resistance to B. cinerea. Consistent with these findings, expression of the defense-related PLANT DEFENSINI.2 (PDF1.2) gene was decreased in VQ10 mutant plants, after B. cinerea infection, but increased in VQ10-overexpressing transgenic plants. Taken together, our findings provide evidence that VQ10 physically interacts with WRKY8 and positively regulates plant basal resistance against the necrotrophic fungal pathogen B. cinerea.

Departmentxtbg-ir
Subject AreaBiochemistry & Molecular Biology ; Plant Sciences
DOI10.1111/jipb.12664
Indexed BySCI
Language英语
WOS IDWOS:000446451000004
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/11084
Collection植物分子生物学研究组
2012年后新成立研究组
Affiliation1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Kunming 650223, Yunnan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, Junqiu,Wang, Houping,Li, Yang,et al. Arabidopsis VQ10 interacts with WRKY8 to modulate basal defense against Botrytis cinerea[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2018,60(10):956-969.
APA Chen, Junqiu,Wang, Houping,Li, Yang,Pan, Jinjing,Hu, Yanru,&Yu, Diqiu.(2018).Arabidopsis VQ10 interacts with WRKY8 to modulate basal defense against Botrytis cinerea.JOURNAL OF INTEGRATIVE PLANT BIOLOGY,60(10),956-969.
MLA Chen, Junqiu,et al."Arabidopsis VQ10 interacts with WRKY8 to modulate basal defense against Botrytis cinerea".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 60.10(2018):956-969.
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