Overexpression of SeNHX1 improves both salt tolerance and disease resistance in tobacco
文献类型：期刊论文
| 作者 | Chen, Xianyang; Bao, Hexigeduleng; Guo, Jie; Jia, Weitao; Li, Yinxin
|
| 刊名 | PLANT SIGNALING & BEHAVIOR
 |
| 出版日期 | 2015 |
| 卷号 | 10期号:4 |
| 关键词 | disease resistance Na+/H+ exchanger salt tolerance SeNHX1 tobacco vacuolar H+ flux |
| ISSN号 | 1559-2316 |
| DOI | 10.4161/15592324.2014.993240 |
| 文献子类 | Article |
| 英文摘要 | Recently, we found NHX1, the gene encoding a Na+/H+ exchanger, participated in plant disease defense. Although NHX1 has been confirmed to be involved in plant salt tolerance, whether the NHX1 transgenic plants exhibit both salt tolerance and disease resistance has not been investigated. The T1 progenies of Nicotiana tabacum L. lines expressing SeNHX1 (from Salicornia europaea) were generated for the present study. Compared with PBI-type control plants, SeNHX1 transgenic tobaccos exhibited more biomass, longer root length, and higher K+/Na+ ratio at post germination or seedling stage under NaCl treatment, indicating enhanced salt tolerance. The vacuolar H+ efflux in SeNHX1 transgenic tobacco was increased after treatment of NaCl with different concentration. Meanwhile, the SeNHX1 transgenic tobaccos showed smaller wilted spot area, less H2O2 accumulation in leaves after infection of Phytophthora parasitica var. nicotianae. Further investigation demonstrated a larger NAD(P)(H) pool in SeNHX1 transgenic tobacco. These evidences revealed that overexpression of SeNHX1 intensified the compartmentation of Na+ into vacuole under salt stress and improved the ability of eliminating ROS after pathogen attack, which then enhanced salt tolerance and disease resistance simultaneously in tobacco. Our findings indicate NHX1 has potential value in creating crops with both improved salt tolerance and disease resistance. |
| 学科主题 | Biochemistry & Molecular Biology ; Plant Sciences |
| 出版地 | PHILADELPHIA |
| 电子版国际标准刊号 | 1559-2324 |
| WOS关键词 | NA+/H+ ANTIPORTER GENE ; VACUOLAR ; HOMEOSTASIS ; EXCHANGER ; STRESS |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000362317900010 |
| 出版者 | TAYLOR & FRANCIS INC |
| 资助机构 | Chinese Ministry of Agriculture [2013ZX08009-003-002] ; National Natural Science Foundation of China [31200201] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/25936]  |
| 专题 | 中科院植物分子生理学重点实验室 |
| 作者单位 | Chinese Acad Sci, Key Lab Plant Mol Physiol, Inst Bot, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Xianyang,Bao, Hexigeduleng,Guo, Jie,et al. Overexpression of SeNHX1 improves both salt tolerance and disease resistance in tobacco[J]. PLANT SIGNALING & BEHAVIOR,2015,10(4). |
| APA | Chen, Xianyang,Bao, Hexigeduleng,Guo, Jie,Jia, Weitao,&Li, Yinxin.(2015).Overexpression of SeNHX1 improves both salt tolerance and disease resistance in tobacco.PLANT SIGNALING & BEHAVIOR,10(4). |
| MLA | Chen, Xianyang,et al."Overexpression of SeNHX1 improves both salt tolerance and disease resistance in tobacco".PLANT SIGNALING & BEHAVIOR 10.4(2015). |
入库方式： OAI收割
来源：植物研究所
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