气候变化领域集成服务门户(CCPortal): Transcription Factor McHB7 Improves Ice Plant Drought Tolerance through ABA Signaling Pathway

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DOI	10.3390/ijms25084569
	Transcription Factor McHB7 Improves Ice Plant Drought Tolerance through ABA Signaling Pathway
	Zhang, Xuemei; Cheng, Zihan; Fan, Gaofeng; Zhu, Dan; Tan, Bowen; Jiang, Tingbo; Chen, Sixue
发表日期	2024
ISSN	1661-6596
EISSN	1422-0067
起始页码	25
结束页码	8
卷号	25 期号:8
英文摘要	As global climate change continues, drought episodes have become increasingly frequent. Studying plant stress tolerance is urgently needed to ensure food security. The common ice plant is one of the model halophyte plants for plant stress biology research. This study aimed to investigate the functions of a newly discovered transcription factor, Homeobox 7 (HB7), from the ice plant in response to drought stress. An efficient Agrobacterium-mediated transformation method was established in the ice plant, where ectopic McHB7 expression may be sustained for four weeks. The McHB7 overexpression (OE) plants displayed drought tolerance, and the activities of redox enzymes and chlorophyll content in the OE plants were higher than the wild type. Quantitative proteomics revealed 1910 and 495 proteins significantly changed in the OE leaves compared to the wild type under the control and drought conditions, respectively. Most increased proteins were involved in the tricarboxylic acid cycle, photosynthesis, glycolysis, pyruvate metabolism, and oxidative phosphorylation pathways. Some were found to participate in abscisic acid signaling or response. Furthermore, the abscisic acid levels increased in the OE compared with the wild type. McHB7 was revealed to bind to the promoter motifs of Early Responsive to Dehydration genes and abscisic acid-responsive genes, and protein-protein interaction analysis revealed candidate proteins responsive to stresses and hormones (e.g., abscisic acid). To conclude, McHB7 may contribute to enhance plant drought tolerance through abscisic acid signaling.
英文关键词	Mesembryanthemum crystallinum; McHB7; drought stress; proteomics; metabolomics; ABA signaling
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
WOS类目	Biochemistry & Molecular Biology ; Chemistry, Multidisciplinary
WOS记录号	WOS:001211109000001
来源期刊	INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297428
作者单位	Yangtze University; Northeast Forestry University - China; State University System of Florida; University of Florida; Qingdao Agricultural University; University of Mississippi
推荐引用方式 GB/T 7714	Zhang, Xuemei,Cheng, Zihan,Fan, Gaofeng,et al. Transcription Factor McHB7 Improves Ice Plant Drought Tolerance through ABA Signaling Pathway[J],2024,25(8).
APA	Zhang, Xuemei.,Cheng, Zihan.,Fan, Gaofeng.,Zhu, Dan.,Tan, Bowen.,...&Chen, Sixue.(2024).Transcription Factor McHB7 Improves Ice Plant Drought Tolerance through ABA Signaling Pathway.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,25(8).
MLA	Zhang, Xuemei,et al."Transcription Factor McHB7 Improves Ice Plant Drought Tolerance through ABA Signaling Pathway".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 25.8(2024).