Mechanisms of salt tolerance in transgenic arabidopsis thaliana constitutively overexpressing the tomato 14-3-3 protein tft7
文献类型：期刊论文
| 作者 | Xu, Wei Feng1,2; Shi, Wei Ming1 |
| 刊名 | Plant and soil
 |
| 出版日期 | 2007-12-01 |
| 卷号 | 301期号:1-2页码:17-28 |
| 关键词 | Arabidopsis thaliana Ascorbate peroxidase 14-3-3 proteins Oxidative stress Salt tolerance Transgenic plants |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-007-9403-5 |
| 通讯作者 | Shi, wei ming(wmshi@issas.ac.cn) |
| 英文摘要 | Soil salinity is a major abiotic stress in reducing plant growth and agricultural productivity. in higher plants, 14-3-3 proteins are phosphoserine-binding proteins that regulate the activity of a wide array of targets via protein-protein interaction and play a key role in abiotic stress. we report here that camv 35s promoter driven overexpression of the tft7 gene, one of tomato 14-3-3 proteins, improves plant salt tolerance in arabidopsis thaliana. in response to salt stress, transgenic plants overexpressing tft7 improved germination rate, dry mass, total chlorophyll concentration and root length. in contrast, the degree of hydrogen peroxide and malondialdehyde accumulation were more in wild-type plants than in transgenic plants. therefore, the mechanisms of salt tolerance in transgenic plants can be explained by reduction of salt-induced oxidative stress damage. in addition, under normal growth condition or salt stress, the higher total ascorbate peroxidase (apx) activity in transgenic plants than in the wild-type plants indicates that tft7 upregulates the activity of apx which plays the indispensable role in salt-induced oxidative stress. these results suggest that in higher plants, tft7 plays an important role in salt tolerance and may be a candidate gene for developing salt-tolerant crop plants. |
| WOS关键词 | MEMBRANE H+-ATPASE ; TIME RT-PCR ; ASCORBATE PEROXIDASE ; STRESS TOLERANCE ; IRON DEFICIENCIES ; GENE-EXPRESSION ; ROOTS ; FAMILY ; CHLOROPLASTS ; SALINITY |
| WOS研究方向 | Agriculture ; Plant Sciences |
| WOS类目 | Agronomy ; Plant Sciences ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000252476000002 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2383122 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Shi, Wei Ming |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Wei Feng,Shi, Wei Ming. Mechanisms of salt tolerance in transgenic arabidopsis thaliana constitutively overexpressing the tomato 14-3-3 protein tft7[J]. Plant and soil,2007,301(1-2):17-28. |
| APA | Xu, Wei Feng,&Shi, Wei Ming.(2007).Mechanisms of salt tolerance in transgenic arabidopsis thaliana constitutively overexpressing the tomato 14-3-3 protein tft7.Plant and soil,301(1-2),17-28. |
| MLA | Xu, Wei Feng,et al."Mechanisms of salt tolerance in transgenic arabidopsis thaliana constitutively overexpressing the tomato 14-3-3 protein tft7".Plant and soil 301.1-2(2007):17-28. |
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来源：中国科学院大学
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