Potassium Retention under Salt Stress Is Associated with Natural Variation in Salinity Tolerance among Arabidopsis Accessions
文献类型：期刊论文
| 作者 | Sun, Yanling; Kong, Xiangpei; Li, Cuiling; Liu, Yongxiu2 ; Ding, Zhaojun
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| 刊名 | PLOS ONE
 |
| 出版日期 | 2015 |
| 卷号 | 10期号:5 |
| ISSN号 | 1932-6203 |
| DOI | 10.1371/journal.pone.0124032 |
| 文献子类 | Article |
| 英文摘要 | Plants are exposed to various environmental stresses during their life cycle such as salt, drought and cold. Natural variation mediated plant growth adaptation has been employed as an effective approach in response to the diverse environmental cues such as salt stress. However, the molecular mechanism underlying this process is not well understood. In the present study, a collection of 82 Arabidopsis thaliana accessions (ecotypes) was screened with a view to identify variation for salinity tolerance. Seven accessions showed a higher level of tolerance than Col-0. The young seedlings of the tolerant accessions demonstrated a higher K+ content and a lower Na+/K+ ratio when exposed to salinity stress, but its Na+ content was the same as that of Col-0. The K+ transporter genes AtHAK5, AtCHX17 and AtKUP1 were up-regulated significantly in almost all the tolerant accessions, even in the absence of salinity stress. There was little genetic variation or positive transcriptional variation between the selections and Col-0 with respect to Na+-related transporter genes, as AtSOS genes, AtNHX1 and AtHKT1;1. In addition, under salinity stress, these selections accumulated higher compatible solutes and lower reactive oxygen species than did Col-0. Taken together, our results showed that natural variation in salinity tolerance of Arabidopsis seems to have been achieved by the strong capacity of K+ retention. |
| 学科主题 | Multidisciplinary Sciences |
| 出版地 | SAN FRANCISCO |
| WOS关键词 | VACUOLAR NA+/H+ ANTIPORTER ; MOLECULAR-MECHANISMS ; DISTINCT MECHANISMS ; K+/NA+ HOMEOSTASIS ; FREEZING TOLERANCE ; ALLELIC VARIATION ; GENETIC-VARIATION ; PROTEIN-KINASE ; K+ NUTRITION ; THALIANA |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000354918600006 |
| 出版者 | PUBLIC LIBRARY SCIENCE |
| 资助机构 | National Natural Science Foundation of China [31270327, 31222005] ; 1000-talents Plan from China for young researchers [11200095551303] ; Research Foundation for Excellent Young Scientist in Shandong Province [BS2013SW005] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/25935]  |
| 专题 | 中科院植物分子生理学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China 2.Shandong Univ, Coll Life Sci, Key Lab Plant Cell Engn & Germplasm Innovat, Jinan 250100, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Yanling,Kong, Xiangpei,Li, Cuiling,et al. Potassium Retention under Salt Stress Is Associated with Natural Variation in Salinity Tolerance among Arabidopsis Accessions[J]. PLOS ONE,2015,10(5). |
| APA | Sun, Yanling,Kong, Xiangpei,Li, Cuiling,Liu, Yongxiu,&Ding, Zhaojun.(2015).Potassium Retention under Salt Stress Is Associated with Natural Variation in Salinity Tolerance among Arabidopsis Accessions.PLOS ONE,10(5). |
| MLA | Sun, Yanling,et al."Potassium Retention under Salt Stress Is Associated with Natural Variation in Salinity Tolerance among Arabidopsis Accessions".PLOS ONE 10.5(2015). |
入库方式： OAI收割
来源：植物研究所
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