Arabidopsis pentatricopeptide repeat protein SOAR1 plays a critical role in abscisic acid signalling

© The Author 2014. Published by Oxford University Press on behalf of the Society for Experimental Biology.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 65(2014), 18 vom: 28. Okt., Seite 5317-30
1. Verfasser: Mei, Chao (VerfasserIn)
Weitere Verfasser: Jiang, Shang-Chuan, Lu, Yan-Fen, Wu, Fu-Qing, Yu, Yong-Tao, Liang, Shan, Feng, Xiu-Jing, Portoles Comeras, Sergi, Lu, Kai, Wu, Zhen, Wang, Xiao-Fang, Zhang, Da-Peng
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Abscisic acid signalling Arabidopsis thaliana Mg-chelatase H subunit pentatricopeptide repeat (PPR) protein post-germination growth seed germination. Arabidopsis Proteins pentatricopeptide repeat protein, Arabidopsis mehr... Abscisic Acid 72S9A8J5GW
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520 |a A dominant suppressor of the ABAR overexpressor, soar1-1D, from CHLH/ABAR [coding for Mg-chelatase H subunit/putative abscisic acid (ABA) receptor (ABAR)] overexpression lines was screened to explore the mechanism of the ABAR-mediated ABA signalling. The SOAR1 gene encodes a pentatricopeptide repeat (PPR) protein which localizes to both the cytosol and nucleus. Down-regulation of SOAR1 strongly enhances, but up-regulation of SOAR1 almost completely impairs, ABA responses, revealing that SOAR1 is a critical, negative, regulator of ABA signalling. Further genetic evidence supports that SOAR1 functions downstream of ABAR and probably upstream of an ABA-responsive transcription factor ABI5. Changes in the SOAR1 expression alter expression of a subset of ABA-responsive genes including ABI5. These findings provide important information to elucidate further the functional mechanism of PPR proteins and the complicated ABA signalling network 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Abscisic acid signalling 
650 4 |a Arabidopsis thaliana 
650 4 |a Mg-chelatase H subunit 
650 4 |a pentatricopeptide repeat (PPR) protein 
650 4 |a post-germination growth 
650 4 |a seed germination. 
650 7 |a Arabidopsis Proteins  |2 NLM 
650 7 |a pentatricopeptide repeat protein, Arabidopsis  |2 NLM 
650 7 |a Abscisic Acid  |2 NLM 
650 7 |a 72S9A8J5GW  |2 NLM 
700 1 |a Jiang, Shang-Chuan  |e verfasserin  |4 aut 
700 1 |a Lu, Yan-Fen  |e verfasserin  |4 aut 
700 1 |a Wu, Fu-Qing  |e verfasserin  |4 aut 
700 1 |a Yu, Yong-Tao  |e verfasserin  |4 aut 
700 1 |a Liang, Shan  |e verfasserin  |4 aut 
700 1 |a Feng, Xiu-Jing  |e verfasserin  |4 aut 
700 1 |a Portoles Comeras, Sergi  |e verfasserin  |4 aut 
700 1 |a Lu, Kai  |e verfasserin  |4 aut 
700 1 |a Wu, Zhen  |e verfasserin  |4 aut 
700 1 |a Wang, Xiao-Fang  |e verfasserin  |4 aut 
700 1 |a Zhang, Da-Peng  |e verfasserin  |4 aut 
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