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The Jasmonate-ZIM-domain proteins interact with the WD-Repeat/bHLH/MYB complexes to regulate Jasmonate-mediated anthocyanin accumulation and trichome initiation in Arabidopsis thaliana.

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WOS被引频次:272
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成果类型:
期刊论文
作者:
Tiancong Qi;Susheng Song;Qingcuo Ren;Dewei Wu;Huang Huang;Yan Chen;Meng Fan;Wen Peng;Chunmei Ren;Daoxin Xie
通讯作者:
Xie, Daoxin
作者机构:
[Tiancong Qi; Qingcuo Ren; Susheng Song; Huang Huang; Meng Fan; Wen Peng; Dewei Wu; Daoxin Xie] Tsinghua Univ, Sch Life Sci, Beijing 100084, Peoples R China.
[Chunmei Ren; Yan Chen] Hunan Agr Univ, Coll Biosci & Biotechnol, Crop Gene Engn Key Lab Hunan Prov, Changsha 410128, Hunan, Peoples R China.
[Daoxin Xie] Tsinghua Univ, MOE Key Lab Bioinformat, Beijing 100084, Peoples R China.
通讯机构:
[Xie, Daoxin] Tsinghua Univ, Sch Life Sci, Beijing 100084, Peoples R China.
语种:
英文
期刊:
The Plant cell
ISSN:
1040-4651
年:
2011
卷:
23
期:
5
页码:
1795-1814
文献类别:
WOS:Article
所属学科:
ESI学科类别:植物学&动物科学;WOS学科类别:Biochemistry & Molecular Biology;Cell Biology;Plant Sciences
入藏号:
WOS:000292079800011;PMID:21551388
基金类别:
National Basic Research Program of China (973 Program) [2011CB915404]; National Science Foundation of China [91017012]; Ministry of Agriculture [2008ZX08009-004]
机构署名:
本校为其他机构
院系归属:
生物科学技术学院
摘要:
Jasmonates (JAs) mediate plant responses to insect attack, wounding, pathogen infection, stress, and UV damage and regulate plant fertility, anthocyanin accumulation, trichome formation, and many other plant developmental processes. Arabidopsis thaliana Jasmonate ZIM-domain (JAZ) proteins, substrates of the CORONATINE INSENSITIVE1 (COI1)-based SCF(COI1) complex, negatively regulate these plant responses. Little is known about the molecular mechanism for JA regulation of anthocyanin accumulation and trichome initiation. In this study, we revealed that JAZ proteins interact with bHLH (Transparent Testa8, Glabra3 [GL3], and Enhancer of Glabra3 [EGL3]) and R2R3 MYB transcription factors (MYB75 and Glabra1), essential components of WD-repeat/bHLH/MYB transcriptional complexes, to repress JA-regulated anthocyanin accumulation and trichome initiation. Genetic and physiological evidence showed that JA regulates WD-repeat/bHLH/MYB complex-mediated anthocyanin accumulation and trichome initiation in a COI1-dependent manner. Overexpression of the MYB transcription factor MYB75 and bHLH factors (GL3 and EGL3) restored anthocyanin accumulation and trichome initiation in the coi1 mutant, respectively. We speculate that the JA-induced degradation of JAZ proteins abolishes the interactions of JAZ proteins with bHLH and MYB factors, allowing the transcriptional function of WD-repeat/bHLH/MYB complexes, which subsequently activate respective downstream signal cascades to modulate anthocyanin accumulation and trichome initiation.
参考文献:
Allan AC, 2008, TRENDS PLANT SCI, V13, P99, DOI [10.1016/j.tplants.2007.11.012, 10.1016/i.tplants.2007.11.012]
Baudry A, 2004, PLANT J, V39, P366, DOI 10.1111/j.1365-313X.2004.02138.x
Baudry A, 2006, PLANT J, V46, P768, DOI 10.1111/j.1365-313X.2006.02733.x
Bernhardt C, 2003, DEVELOPMENT, V130, P6431, DOI 10.1242/dev.00880
Borevitz JO, 2000, PLANT CELL, V12, P2383, DOI 10.1105/tpc.12.12.2383

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