Comparative Physiological and Transcriptional Analyses of Two Contrasting Drought Tolerant Alfalfa Varieties
文献类型：期刊论文
| 作者 | Quan, Wenli1,2; Liu, Xun1,2; Wang, Haiqing3; Chan, Zhulong1 |
| 刊名 | frontiers in plant science
 |
| 出版日期 | 2016-01-12 |
| 卷号 | 6 |
| 关键词 | alfalfa drought stress stomata density lateral root physiological changes transcriptional expression |
| 英文摘要 | drought is one of major environmental determinants of plant growth and productivity. alfalfa (meclicago sativa) is a legume perennial forage crop native to the arid and semi arid environment, which is an ideal candidate to study the biochemical and molecular mechanisms conferring drought resistance in plants. in this study, drought stress responses of two alfalfa varieties, longdong and algonquin, were comparatively assayed at the physiological, morphological, and transcriptional levels. under control condition, the drought tolerant longdong with smaller leaf size and lower stomata density showed less water loss than the drought-sensitive algonquin. after exposing to drought stress, longdong showed less severe cell membrane damage, more proline, and ascorbate (asc) contents and less accumulation of h2o2 than algonquin. moreover, significantly higher antioxidant enzymes activities after drought treatment were found in longdong when compared with algonquin. in addition, transcriptional expression analysis showed that longdong exhibited significantly higher transcripts of drought-responsive genes in leaf and root under drought stress condition. taken together, these results indicated that longdong variety was more drought-tolerant than algonquin variety as evidenced by less leaf firing, more lateral root number, higher relative aboveground/underground biomass per plant and survival rate. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 类目[WOS] | plant sciences |
| 研究领域[WOS] | plant sciences |
| 关键词[WOS] | confers enhanced tolerance ; medicago-sativa l. ; oxidative stress ; signal-transduction ; abiotic stresses ; salt stress ; water-deficit ; plants ; gene ; arabidopsis |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000368002300003 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/6505]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan Bot Garden Sino Africa Joint Res Ctr, Wuhan, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining, Peoples R China |
| 推荐引用方式 GB/T 7714 | Quan, Wenli,Liu, Xun,Wang, Haiqing,et al. Comparative Physiological and Transcriptional Analyses of Two Contrasting Drought Tolerant Alfalfa Varieties[J]. frontiers in plant science,2016,6. |
| APA | Quan, Wenli,Liu, Xun,Wang, Haiqing,&Chan, Zhulong.(2016).Comparative Physiological and Transcriptional Analyses of Two Contrasting Drought Tolerant Alfalfa Varieties.frontiers in plant science,6. |
| MLA | Quan, Wenli,et al."Comparative Physiological and Transcriptional Analyses of Two Contrasting Drought Tolerant Alfalfa Varieties".frontiers in plant science 6(2016). |
入库方式： OAI收割
来源：西北高原生物研究所
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