TheR2R3-MYBtranscription factorAtMYB49modulates salt tolerance inArabidopsisby modulating the cuticle formation and antioxidant defence

doi:10.1111/pce.13784

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 2012年后新成立研究组

	TheR2R3-MYBtranscription factorAtMYB49modulates salt tolerance inArabidopsisby modulating the cuticle formation and antioxidant defence
	Zhang, Ping ; Wang, Ruling 3; Yang, Xianpeng 5; Ju, Qiong ; Li, Weiqiang 6; Lu, Shiyou 7; Tran, Lam-Son Phan ; Xu, Jin 2,3
刊名	PLANT CELL AND ENVIRONMENT
	2020
卷号	43 期号:8 页码:1925-1943
关键词	CUTICULAR WAX BIOSYNTHESIS ABIOTIC STRESS RESPONSES TRANSCRIPTION FACTOR OXIDATIVE STRESS PHYSIOLOGICAL-RESPONSES SUPEROXIDE-DISMUTASE ARABIDOPSIS-THALIANA ABC TRANSPORTER GENE-EXPRESSION SUBERIN
ISSN号	0140-7791
DOI	10.1111/pce.13784
英文摘要	Salt stress activates defence responses in plants, including changes in leaf surface structure. Here, we showed that the transcriptional activation of cutin deposition and antioxidant defence by the R2R3-type MYB transcription factor AtMYB49 contributed to salt tolerance inArabidopsis thaliana. Characterization of loss-of-functionmyb49mutants, and chimericAtMYB49-SRDX-overexpressingSRDX49transcriptional repressor andAtMYB49-overexpressing (OX49) overexpressor plants demonstrated a positive role ofAtMYB49in salt tolerance. Transcriptome analysis revealed that many genes belonging to the category "cutin, suberin and wax biosyntheses" were markedly up-regulated and down-regulated inOX49andSRDX49plants, respectively, under normal and/or salt stress conditions. Some of these differentially expressed genes, includingMYB41,ASFT,FACTandCYP86B1, were also shown to be the direct targets of AtMYB49 and activated by AtMYB49. Biochemical analysis indicated that AtMYB49 modulated cutin deposition in the leaves. Importantly, cuticular transpiration, chlorophyll leaching and toluidine blue-staining assays revealed a link between increased AtMYB49-mediated cutin deposition in leaves and enhanced salt tolerance. Additionally, increasedAtMYB49expression elevated Ca(2+)level in leaves and improved antioxidant capacity by up-regulating genes encoding peroxidases and late embryogenesis abundant proteins. These results suggest that genetic manipulation ofAtMYB49may provide a novel way to improve salt tolerance in plants.
学科主题	Plant Sciences
语种	英语
WOS记录号	WOS:000540315200001
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/11763]
专题	西双版纳热带植物园_2012年后新成立研究组
作者单位	1.Duy Tan Univ, Inst Res & Dev, Da Nang 550000, Vietnam 2.RIKEN Ctr Sustainable Resource Sci, Stress Adaptat Res Unit, Tsurumi, Japan 3.Shanxi Agr Univ, Coll Hort, Taigu 030801, Peoples R China 4.TianShui Normal Univ, Coll Bioengn & Biotechnol, GanSu Key Lab Utilizat Agr Solid Waste Resources, Tianshui, Peoples R China 5.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, CAS Key Lab Trop Plant Resources & Sustainable Us, Mengla, Peoples R China 6.Shandong Normal Univ, Coll Life Sci, Shandong Prov Key Lab Plant Stress, Jinan, Peoples R China 7.Henan Univ, Inst Plant Stress Biol, Dept Biol, State Key Lab Cotton Biol, Kaifeng, Peoples R China 8.Hubei Univ, Sch Life Sci, State Key Lab Biocatalysis & Enzyme Engn, Wuhan 434200, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ping,Wang, Ruling,Yang, Xianpeng,et al. TheR2R3-MYBtranscription factorAtMYB49modulates salt tolerance inArabidopsisby modulating the cuticle formation and antioxidant defence[J]. PLANT CELL AND ENVIRONMENT,2020,43(8):1925-1943.
APA	Zhang, Ping.,Wang, Ruling.,Yang, Xianpeng.,Ju, Qiong.,Li, Weiqiang.,...&Xu, Jin.(2020).TheR2R3-MYBtranscription factorAtMYB49modulates salt tolerance inArabidopsisby modulating the cuticle formation and antioxidant defence.PLANT CELL AND ENVIRONMENT,43(8),1925-1943.
MLA	Zhang, Ping,et al."TheR2R3-MYBtranscription factorAtMYB49modulates salt tolerance inArabidopsisby modulating the cuticle formation and antioxidant defence".PLANT CELL AND ENVIRONMENT 43.8(2020):1925-1943.