Zinc regulates the hydraulic response of maize root under water stress conditions
文献类型：期刊论文
| 作者 | Zhang, Li1,2 ; Yan, Minfei3; Ren, Yuanyuan4; Chen, Yinglong3,5,6; Zhang, Suiqi2,3
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| 刊名 | PLANT PHYSIOLOGY AND BIOCHEMISTRY
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| 出版日期 | 2021-02-01 |
| 卷号 | 159页码:123-134 |
| ISSN号 | 0981-9428 |
| 关键词 | Ultra-microstructure Root hydraulic conductivity Zea mays Zinc Water stress |
| DOI | 10.1016/j.plaphy.2020.12.014 |
| 通讯作者 | Zhang, Suiqi(sqzhang@ms.iswc.ac.cn) |
| 英文摘要 | Zinc (Zn) is involved in plant growth and stress resistance and is known to increase crop yield. Here, we investigated the effect of Zn on water absorption in the roots of maize (Zea mays L.), a crop which is sensitive to Zn deficiency, during water stress conditions. Seedlings of the maize variety "Zhengdan 958" were cultivated with 0.1 or 6 mu M ZnSO4 center dot 7H(2)O. To simulate drought stress, three-week-old seedlings were exposed to 15% polyethylene glycol (PEG). Root growth parameters, root antioxidant enzyme activity, root hydraulic conductivity, root aquaporin gene expression, root and leaf anatomy structure, leaf water potential, chlorophyll content, leaf area, and gas exchange parameters were measured. Under water stress, moderate Zn treatment promoted root growth; maintained root and leaf anatomy structural integrity. Moderate Zn significantly increased roots hydraulic conductivity (51%) and decreased roots antioxidant enzyme activity (POD: -11.1%, CAT: -35.1%, SOD: -3.1%) compared with low-level Zn under water stress. The expression of ZmPIP1;1, ZmPIP1;2, and ZmPIP2;2 was significantly higher with moderate Zn treatment than that of low-level Zn treatment. The leaf water potential, chlorophyll content, leaf area, and gas exchange parameters with moderate Zn treatment increased significantly under water stress compared with low-level Zn treatment. The moderate concentration of Zn improved root hydraulic conductivity in maize and increased resistance to simulated drought conditions by maintaining root structural integrity, decreasing antioxidant enzyme activity, and increasing aquaporin gene expression. Moderate Zn application increased root water absorption and leaf transpiration, thereby maintaining maize water balance under water stress conditions. |
| WOS关键词 | PLASMA-MEMBRANE AQUAPORINS ; SEED ZN CONCENTRATION ; OXIDATIVE STRESS ; DROUGHT STRESS ; FINGER MILLET ; TOLERANCE ; EXPRESSION ; TRANSPORT ; GROWTH ; ULTRASTRUCTURE |
| 资助项目 | National Natural Science Foundation of China[41901025] ; 111 Project of the Chinese Education Ministry[B12007] ; Open Foundation of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021402-1712] |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| 出版者 | ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER |
| WOS记录号 | WOS:000610843600013 |
| 资助机构 | National Natural Science Foundation of China ; 111 Project of the Chinese Education Ministry ; Open Foundation of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/160695]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Suiqi |
| 作者单位 | 1.Weifang Med Univ, Sch Pharm, Weifang 261053, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 3.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 4.Baoji Univ Arts & Sci, Geog & Environm Engn Dept, Baoji 721013, Shaanxi, Peoples R China 5.Univ Western Australia, UWA Inst Agr, Perth, WA 6009, Australia 6.Univ Western Australia, Sch Agr & Environm, Perth, WA 6009, Australia |
| 推荐引用方式 GB/T 7714 | Zhang, Li,Yan, Minfei,Ren, Yuanyuan,et al. Zinc regulates the hydraulic response of maize root under water stress conditions[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2021,159:123-134. |
| APA | Zhang, Li,Yan, Minfei,Ren, Yuanyuan,Chen, Yinglong,&Zhang, Suiqi.(2021).Zinc regulates the hydraulic response of maize root under water stress conditions.PLANT PHYSIOLOGY AND BIOCHEMISTRY,159,123-134. |
| MLA | Zhang, Li,et al."Zinc regulates the hydraulic response of maize root under water stress conditions".PLANT PHYSIOLOGY AND BIOCHEMISTRY 159(2021):123-134. |
入库方式： OAI收割
来源：地理科学与资源研究所
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