The transcription factor SbHY5 mediates light to promote aluminum tolerance by activating SbMATE and SbSTOP1s expression

Copyright © 2023. Published by Elsevier Masson SAS.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 205(2023) vom: 24. Dez., Seite 108197
1. Verfasser: Zhan, Meiqi (VerfasserIn)
Weitere Verfasser: Gao, Jie, You, Jiangfeng, Guan, Kexing, Zheng, Meihui, Meng, Xiangxiang, Li, He, Yang, Zhenming
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Al toxicity Citrate secretion MATE STOP1 Transcription factor SbHY5 Transcription Factors Aluminum CPD4NFA903 Citrates Plant Proteins
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520 |a Aluminum (Al) toxicity is a major factor limiting crop yields in acid soils. Sweet sorghum (Sorghum bicolor L.) is a high-efficient energy crop widely grown in tropical and subtropical regions of the world, where acid soil is common and Al toxicity is widespread. Here, we characterized a transcription factor SbHY5 in sweet sorghum, which mediated light to promote plant Al stress adaptation. The expression of SbHY5 was induced by Al stress and increasing light intensity. The overexpression of SbHY5 improved Al tolerance in transgenic plants, which was associated with increased citrate secretion and reduced Al content in roots. Meanwhile, SbHY5 was found to localize to the nucleus and displayed transcriptional activity. SbHY5 directly activated the expression of SbMATE, indicating that a HY5-MATE-dependent citrate secretion pathway is involved in Al tolerance in plants. SbSTOP1 was reported as a key transcription factor, regulating several Al tolerance genes. Here, inspiringly, we found that SbHY5 directly promoted the transcription of SbSTOP1, implying the existence of HY5-STOP1-Al tolerance genes-mediated regulatory pathways. Besides, SbHY5 positively regulated its own transcription. Our findings revealed a novel regulatory network in which a light signaling factor, SbHY5, confers Al tolerance in plants by modulating the expression of Al stress response genes 
650 4 |a Journal Article 
650 4 |a Al toxicity 
650 4 |a Citrate secretion 
650 4 |a MATE 
650 4 |a STOP1 
650 4 |a Transcription factor SbHY5 
650 7 |a Transcription Factors  |2 NLM 
650 7 |a Aluminum  |2 NLM 
650 7 |a CPD4NFA903  |2 NLM 
650 7 |a Citrates  |2 NLM 
650 7 |a Plant Proteins  |2 NLM 
700 1 |a Gao, Jie  |e verfasserin  |4 aut 
700 1 |a You, Jiangfeng  |e verfasserin  |4 aut 
700 1 |a Guan, Kexing  |e verfasserin  |4 aut 
700 1 |a Zheng, Meihui  |e verfasserin  |4 aut 
700 1 |a Meng, Xiangxiang  |e verfasserin  |4 aut 
700 1 |a Li, He  |e verfasserin  |4 aut 
700 1 |a Yang, Zhenming  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Plant physiology and biochemistry : PPB  |d 1991  |g 205(2023) vom: 24. Dez., Seite 108197  |w (DE-627)NLM098178261  |x 1873-2690  |7 nnns 
773 1 8 |g volume:205  |g year:2023  |g day:24  |g month:12  |g pages:108197 
856 4 0 |u http://dx.doi.org/10.1016/j.plaphy.2023.108197  |3 Volltext 
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