An HD-ZIP-MYB complex regulates glandular secretory trichome initiation in Artemisia annua

© 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 231(2021), 5 vom: 01. Sept., Seite 2050-2064
1. Verfasser: Xie, Lihui (VerfasserIn)
Weitere Verfasser: Yan, Tingxiang, Li, Ling, Chen, Minghui, Hassani, Danial, Li, Yongpeng, Qin, Wei, Liu, Hang, Chen, Tiantian, Fu, Xueqing, Shen, Qian, Rose, Jocelyn K C, Tang, Kexuan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Artemisia annua HD-ZIP MYB complex glandular secretory trichome jasmonic acid regulator Plant Proteins Transcription Factors
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520 |a Plant glandular secretory trichomes (GSTs) produce various specialized metabolites. Increasing GST density represents a strategy to enhance the yield of these chemicals; however, the gene regulatory network that controls GST initiation remains unclear. In a previous study of Artemisia annua L., we found that a HD-ZIP IV transcription factor, AaHD1, promotes GST initiation by directly regulating AaGSW2. Here, we identified two AaHD1-interacting transcription factors, namely AaMIXTA-like 2 (AaMYB16) and AaMYB5. Through the generation and characterization of transgenic plants, we found that AaMYB16 is a positive regulator of GST initiation, whereas AaMYB5 has the opposite effect. Notably, neither of them regulates GST formation independently. Rather, they act competitively, by interacting and modulating AaHD1 promoter binding activity. Additionally, the phytohormone jasmonic acid (JA) was shown to be associated with the AaHD1-AaMYB16/AaMYB5 regulatory network through transcriptional regulation via a JASMONATE-ZIM DOMAIN (JAZ) protein repressor. These results bring new insights into the mechanism of GST initiation through regulatory complexes, which appear to have similar functions in a range of vascular plant taxa 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Artemisia annua 
650 4 |a HD-ZIP 
650 4 |a MYB 
650 4 |a complex 
650 4 |a glandular secretory trichome 
650 4 |a jasmonic acid 
650 4 |a regulator 
650 7 |a Plant Proteins  |2 NLM 
650 7 |a Transcription Factors  |2 NLM 
700 1 |a Yan, Tingxiang  |e verfasserin  |4 aut 
700 1 |a Li, Ling  |e verfasserin  |4 aut 
700 1 |a Chen, Minghui  |e verfasserin  |4 aut 
700 1 |a Hassani, Danial  |e verfasserin  |4 aut 
700 1 |a Li, Yongpeng  |e verfasserin  |4 aut 
700 1 |a Qin, Wei  |e verfasserin  |4 aut 
700 1 |a Liu, Hang  |e verfasserin  |4 aut 
700 1 |a Chen, Tiantian  |e verfasserin  |4 aut 
700 1 |a Fu, Xueqing  |e verfasserin  |4 aut 
700 1 |a Shen, Qian  |e verfasserin  |4 aut 
700 1 |a Rose, Jocelyn K C  |e verfasserin  |4 aut 
700 1 |a Tang, Kexuan  |e verfasserin  |4 aut 
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773 1 8 |g volume:231  |g year:2021  |g number:5  |g day:01  |g month:09  |g pages:2050-2064 
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