Abscisic acid and brassinolide combined application synergistically enhances drought tolerance and photosynthesis of tall fescue under water stress
文献类型：期刊论文
| 作者 | Wang, Zhi1,3; Yang, Yungui2; Li, Min1; Xu, Bingcheng1,3; Xu, BC (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.; Yang, YG (reprint author), Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.; Chen, Zhifei1,2 |
| 刊名 | SCIENTIA HORTICULTURAE
 |
| 出版日期 | 2018 |
| 卷号 | 228页码:1-9 |
| 关键词 | Abscisic Acid Brassinolide Drought Stress Antioxidant Enzymes Photosynthesis Synergistic Interaction |
| ISSN号 | 0304-4238 |
| DOI | 10.1016/j.scienta.2017.10.004 |
| 文献子类 | Article |
| 英文摘要 | Tall fescue (Festuca arundinacea Schreb.) is a widely used cool-season turfgrass, and its growth is mainly limited by water deficit. Abscisic acid (ABA) and brassinolide (BR) are two important stress hormones regulating plant physiological processes and growth under water deficit. To investigate effects of exogenous ABA and BR on physiological and photosynthetic performance of tall fescue under water stress conditions, ABA (10 and 20 mg L-1) and BR (0.4 and 0.8 mg L-1) were applied individually and in combination (0.4 mg L-1 BR and 10 mg L-1 ABA) under three soil water regimes [75 +/- 5% FC (HW), 50 +/- 5% FC (MW) and 25 +/- 5% FC (LW)] in the greenhouse. Results revealed that ABA and BR application markedly decreased the relative conductivity and malondialdehyde, notably increased leaf relative water content, antioxidant enzyme activity and proline content under water stress. ABA plus BR application was equally effective in improving the activities of antioxidant enzyme as ABA at 20 mg L-1. ABA application reduced stomatal conductance and decreased both transpiration and net photosynthetic rate (P-n), while BR application significantly increased P-n and water use efficiency (WUE) by enhancing chlorophyll content. The ABA and BR combination application showed higher P-n and WUE as well as BR single application. It indicated that ABA and BR combination application increased photosynthetic capacity, and reduced the effect on photosynthetic loss caused by ABA under water stress. All these confirmed that ABA plus BR application exhibited a synergistic interaction on enhancing drought tolerance and photosynthesis of tall fescue under water stress. |
| 学科主题 | Horticulture |
| 出版地 | PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
| 语种 | 英语 |
| WOS记录号 | WOS:000416191300001 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iswc.ac.cn/handle/361005/7846]  |
| 专题 | 水保所科研产出--SCI_2018--SCI |
| 通讯作者 | Xu, BC (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.; Yang, YG (reprint author), Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China. |
| 作者单位 | 1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, Coll Anim Sci & Technol, Yangling 712100, Shaanxi, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhi,Yang, Yungui,Li, Min,et al. Abscisic acid and brassinolide combined application synergistically enhances drought tolerance and photosynthesis of tall fescue under water stress[J]. SCIENTIA HORTICULTURAE,2018,228:1-9. |
| APA | Wang, Zhi.,Yang, Yungui.,Li, Min.,Xu, Bingcheng.,Xu, BC .,...&Chen, Zhifei.(2018).Abscisic acid and brassinolide combined application synergistically enhances drought tolerance and photosynthesis of tall fescue under water stress.SCIENTIA HORTICULTURAE,228,1-9. |
| MLA | Wang, Zhi,et al."Abscisic acid and brassinolide combined application synergistically enhances drought tolerance and photosynthesis of tall fescue under water stress".SCIENTIA HORTICULTURAE 228(2018):1-9. |
入库方式： OAI收割
来源：水土保持研究所
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