ghr-miR5272a-mediated regulation of GhMKK6 gene transcription contributes to the immune response in cotton

© The Author 2017. Published by Oxford University Press on behalf of the Society for Experimental Biology.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 68(2017), 21-22 vom: 16. Dez., Seite 5895-5906
1. Verfasser: Wang, Chen (VerfasserIn)
Weitere Verfasser: He, Xiaowen, Wang, Xinxin, Zhang, Shuxin, Guo, Xingqi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Cotton Fusarium oxysporum GhMKK6 Gossypium hirsutum feedback loop ghr-miR5272a miRNA MicroRNAs mehr... Plant Proteins RNA, Plant Mitogen-Activated Protein Kinase Kinases EC 2.7.12.2
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500 |a CommentIn: J Exp Bot. 2017 Dec 16;68(21-22):5685-5687. doi: 10.1093/jxb/erx385. - PMID 29267907 
500 |a Citation Status MEDLINE 
520 |a © The Author 2017. Published by Oxford University Press on behalf of the Society for Experimental Biology. 
520 |a Fusarium wilt is a major biotic stress affecting the productivity of cotton (Gossypium hirsutum). Although mitogen-activated protein kinase (MAPK) cascades play critical roles in plant disease resistance, their intricate regulation under fungal stress remains unclear, especially with regards to microRNA-mediated regulation of MAPK gene expression. In this study, we report that the MAPK kinase gene GhMKK6 and ghr-miR5272a work together in cotton resistance to Fusarium wilt. Silencing GhMKK6 in cotton decreased resistance to F. oxysporum by repressing the expression of known disease-resistance genes. Furthermore, although GhMKK6 played a positive role in disease resistance, excessive GhMKK6 activation caused an excessive hypersensitive response. ghr-miR5272a, a major regulator, prevents this excessive response by regulating GhMKK6 expression. ghr-miR5272a targets the GhMKK6 3'-untranslated region in cotton. Overexpressing miR5272a decreased the expression of GhMKK6 and disease-resistance genes, and increased sensitivity to F. oxysporum, yielding a similar phenotype to GhMKK6-silenced cotton. Overall, these results demonstrate that the ghr-miR5272a-mediated regulation of GhMKK6 expression contributes to the immune response in cotton, and reveal a new feedback loop mechanism in plant disease response 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Cotton 
650 4 |a Fusarium oxysporum 
650 4 |a GhMKK6 
650 4 |a Gossypium hirsutum 
650 4 |a feedback loop 
650 4 |a ghr-miR5272a 
650 4 |a miRNA 
650 7 |a MicroRNAs  |2 NLM 
650 7 |a Plant Proteins  |2 NLM 
650 7 |a RNA, Plant  |2 NLM 
650 7 |a Mitogen-Activated Protein Kinase Kinases  |2 NLM 
650 7 |a EC 2.7.12.2  |2 NLM 
700 1 |a He, Xiaowen  |e verfasserin  |4 aut 
700 1 |a Wang, Xinxin  |e verfasserin  |4 aut 
700 1 |a Zhang, Shuxin  |e verfasserin  |4 aut 
700 1 |a Guo, Xingqi  |e verfasserin  |4 aut 
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