| TheR2R3-MYBtranscription factorAtMYB49modulates salt tolerance inArabidopsisby modulating the cuticle formation and antioxidant defence | |
Zhang, Ping; Wang, Ruling1; Yang, Xianpeng2; Ju, Qiong; Li, Weiqiang3; Lu, Shiyou4; Tran, Lam-Son Phan; Xu, Jin1,7
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| 2020 | |
| Source Publication | PLANT CELL AND ENVIRONMENT
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| ISSN | 0140-7791 |
| Volume | 43Issue:8Pages:1925-1943 |
| Abstract | 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. |
| Keyword | CUTICULAR WAX BIOSYNTHESIS ABIOTIC STRESS RESPONSES TRANSCRIPTION FACTOR OXIDATIVE STRESS PHYSIOLOGICAL-RESPONSES SUPEROXIDE-DISMUTASE ARABIDOPSIS-THALIANA ABC TRANSPORTER GENE-EXPRESSION SUBERIN |
| Subject Area | Plant Sciences |
| DOI | 10.1111/pce.13784 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000540315200001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/11763 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.Shanxi Agr Univ, Coll Hort, Taigu 030801, Peoples R China 2.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, CAS Key Lab Trop Plant Resources & Sustainable Us, Mengla, Peoples R China 3.Shandong Normal Univ, Coll Life Sci, Shandong Prov Key Lab Plant Stress, Jinan, Peoples R China 4.Henan Univ, Inst Plant Stress Biol, Dept Biol, State Key Lab Cotton Biol, Kaifeng, Peoples R China 5.Hubei Univ, Sch Life Sci, State Key Lab Biocatalysis & Enzyme Engn, Wuhan 434200, Peoples R China 6.Duy Tan Univ, Inst Res & Dev, Da Nang 550000, Vietnam 7.RIKEN Ctr Sustainable Resource Sci, Stress Adaptat Res Unit, Tsurumi, Japan 8.TianShui Normal Univ, Coll Bioengn & Biotechnol, GanSu Key Lab Utilizat Agr Solid Waste Resources, Tianshui, Peoples R China |
| Recommended Citation 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. |
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