| Arabidopsis AINTEGUMENTA mediates salt tolerance by trans-repressing SCABP8 | |
Meng, Lai-Sheng; Wang, Yi-Bo; Yao, Shun-Qiao; Liu, Aizhong
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| 2015-08-01 | |
| 发表期刊 | JOURNAL OF CELL SCIENCE
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| 卷号 | 128期号:15页码:2919-2927 |
| 摘要 | The Arabidopsis AINTEGUMENTA (ANT) gene, which encodes an APETALA2 (AP2)-like transcription factor, controls plant organ cell number and organ size throughout shoot development. ANT is thus a key factor in the development of plant shoots. Here, we have found that ANT plays an essential role in conferring salt tolerance in Arabidopsis. ant-knockout mutants presented a salt-tolerant phenotype, whereas transgenic plants expressing ANT under the 35S promoter (35S:ANT) exhibited more sensitive phenotypes under high salt stress. Further analysis indicated that ANT functions mainly in the shoot response to salt toxicity. Target gene analysis revealed that ANT bound to the promoter of SOS3-LIKE CALCIUM BINDING PROTEIN 8 (SCABP8), which encodes a putative Ca2+ sensor, thereby inhibiting expression of SCABP8 (also known as CBL10). It has been reported that the salt sensitivity of scabp8 is more prominent in shoot tissues. Genetic experiments indicated that the mutation of SCABP8 suppresses the ant-knockout salt-tolerant phenotype, implying that ANT functions as a negative transcriptional regulator of SCABP8 upon salt stress. Taken together, the above results reveal that ANT is a novel regulator of salt stress and that ANT binds to the SCABP8 promoter, mediating salt tolerance. |
| 关键词 | Aintegumenta (Ant) Sos3-like Calcium Binding Protein8 Scabp8 Calcineurin B-like10 Salt Stress Trans-repression Shoot Arabidopsis |
| DOI | 10.1242/jcs.172072 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000359782100017 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kib.ac.cn/handle/151853/25095 |
| 专题 | 资源植物与生物技术所级重点实验室 |
| 推荐引用方式 GB/T 7714 | Meng, Lai-Sheng,Wang, Yi-Bo,Yao, Shun-Qiao,et al. Arabidopsis AINTEGUMENTA mediates salt tolerance by trans-repressing SCABP8[J]. JOURNAL OF CELL SCIENCE,2015,128(15):2919-2927. |
| APA | Meng, Lai-Sheng,Wang, Yi-Bo,Yao, Shun-Qiao,&Liu, Aizhong.(2015).Arabidopsis AINTEGUMENTA mediates salt tolerance by trans-repressing SCABP8.JOURNAL OF CELL SCIENCE,128(15),2919-2927. |
| MLA | Meng, Lai-Sheng,et al."Arabidopsis AINTEGUMENTA mediates salt tolerance by trans-repressing SCABP8".JOURNAL OF CELL SCIENCE 128.15(2015):2919-2927. |
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