| MYB70 modulates seed germination and root system development in Arabidopsis | |
Wan, Jinpeng5 ; Wang, Ruling; Zhang, Ping1; Sun, Liangliang1; Ju, Qiong1; Huang, Haodong4; Lu, Shiyou4; Tran, Lam-Son; Xu, Jin1
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| 2021 | |
| Source Publication | ISCIENCE
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| ISSN | 2589-0042 |
| Volume | 24Issue:11Pages:- |
| Abstract | Crosstalk among ABA, auxin, and ROS plays critical roles in modulating seed germination, root growth, and suberization. However, the underlying molecular mechanisms remain largely elusive. Here, MYB70, a R2R3-MYB transcription factor was shown to be a key component of these processes in Arabidopsis thaliana. myb70 seeds displayed decreased sensitivity, while MYB70-overexpressing OX70 seeds showed increased sensitivity in germination in response to exogenous ABA through MYB70 physical interaction with ABI5 protein, leading to enhanced stabilization of ABI5. Furthermore, MYB70 modulates root system development (RSA) which is associated with increased conjugated IAA content and H2O2/O-2(center dot-) ratio but reduced root suberin deposition, consequently affecting nutrient uptake. In support of these data, MYB70 positively regulates the expression of auxin conjugation-related GH3 , while negatively peroxidase-encoding and suberin biosynthesis-related genes. Our findings collectively revealed a previously uncharacterized component that modulates ABA and auxin signaling pathways, H2O2/O-2(center dot-) balance, and suberization, consequently regulating RSA and seed germination. |
| Subject Area | Science & Technology - Other Topics |
| DOI | 10.1016/j.isci.2021.103228 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000723606400001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/12467 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.Chinese Acad Sci, CAS Key Lab Trop Plant Resources & Sustainable Us, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China 2.Shanxi Agr Univ, Coll Hort, Taigu 030801, Peoples R China 3.Duy Tan Univ, Inst Res & Dev, Da Nang 550000, Vietnam 4.Texas Tech Univ, Inst Genom Crop Abiot Stress Tolerance, Dept Plant & Soil Sci, Lubbock, TX 79409 USA 5.Hubei Univ, Sch Life Sci, State Key Lab Biocatalysis & Enzyme Engn, Wuhan 430062, Peoples R China 6.Chinese Acad Sci, Ctr Econ Bot, Core Bot Gardens, Mengla 666303, Peoples R China |
| Recommended Citation GB/T 7714 | Wan, Jinpeng,Wang, Ruling,Zhang, Ping,et al. MYB70 modulates seed germination and root system development in Arabidopsis[J]. ISCIENCE,2021,24(11):-. |
| APA | Wan, Jinpeng.,Wang, Ruling.,Zhang, Ping.,Sun, Liangliang.,Ju, Qiong.,...&Xu, Jin.(2021).MYB70 modulates seed germination and root system development in Arabidopsis.ISCIENCE,24(11),-. |
| MLA | Wan, Jinpeng,et al."MYB70 modulates seed germination and root system development in Arabidopsis".ISCIENCE 24.11(2021):-. |
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| MYB70 modulates seed（6433KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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