Physiological acclimation of two psammophytes to repeated soil drought and rewatering
文献类型：期刊论文
| 作者 | Luo, Yayong1,2; Zhao, Xueyong2; Zhou, Ruilian3; Zuo, Xiaoan2; Zhang, Jinghui2; Li, Yanqing2 |
| 刊名 | ACTA PHYSIOLOGIAE PLANTARUM
 |
| 出版日期 | 2011 |
| 卷号 | 33期号:1页码:79-91 |
| 关键词 | Photosynthesis Antioxidant enzymes Proline Recovery Hardening |
| ISSN号 | 0137-5881 |
| DOI | 10.1007/s11738-010-0519-5 |
| 通讯作者 | Luo, Yayong(luoyy816@hotmail.com) |
| 英文摘要 | To understand physiological acclimation of psammophyte to repeated soil drought and rewatering, two psammophytes (Setaria viridis and Digitaria ciliaris) were subjected to three cycles of soil drought and rewatering. The response process of leaf relative water content (RWC), membrane permeability, lipid peroxidation, gas exchange characteristics, antioxidant enzymes, soluble protein, and free proline was examined. Leaf RWC, the net photosynthesis rate, stomatal conductance, and water use efficiency decreased, while membrane permeability, lipid peroxidation, intercellular CO(2) concentration, soluble protein, and free proline increased during three soil drought periods for both psammophytes. These physiological characteristics were recovered to the control levels following rewatering for 4 days. However, activities of SOD, CAT, and POD were induced continuously under soil drought conditions, and remained higher than those in the control throughout the whole experiment period, which agrees with our hypothesis that drought hardening activates defensive systems of both psammophytes continuously. Decreasing level of leaf RWC and increasing levels of leaf membrane permeability and lipid peroxidation were suppressed with increasing the number of drought cycles, suggesting that drought hardening alleviates damages of both psammophytes and improves their drought tolerance and acclimation to soil drought conditions in the future. Additionally, the photosynthesis decreased more slowly in the subsequent drought cycles than in the first cycle, allowing both psammophytes to maximize assimilation in response to repeated soil drought conditions. Thus, both psammophytes acclimatize themselves to repeated soil drought. |
| 收录类别 | SCI |
| WOS关键词 | WATER-STRESS ; STOMATAL CONDUCTANCE ; LIPID-PEROXIDATION ; C-3 PLANTS ; PHOTOCHEMICAL EFFICIENCY ; MEMBRANE-PERMEABILITY ; PROLINE BIOSYNTHESIS ; ANTIOXIDANT DEFENSE ; OXIDATIVE STRESS ; COTTON GENOTYPES |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000285997900006 |
| 出版者 | SPRINGER HEIDELBERG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556516 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Luo, Yayong |
| 作者单位 | 1.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China 3.Ludong Univ, Dept Biol Sci & Biotechnol, Yantai 264025, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Yayong,Zhao, Xueyong,Zhou, Ruilian,et al. Physiological acclimation of two psammophytes to repeated soil drought and rewatering[J]. ACTA PHYSIOLOGIAE PLANTARUM,2011,33(1):79-91. |
| APA | Luo, Yayong,Zhao, Xueyong,Zhou, Ruilian,Zuo, Xiaoan,Zhang, Jinghui,&Li, Yanqing.(2011).Physiological acclimation of two psammophytes to repeated soil drought and rewatering.ACTA PHYSIOLOGIAE PLANTARUM,33(1),79-91. |
| MLA | Luo, Yayong,et al."Physiological acclimation of two psammophytes to repeated soil drought and rewatering".ACTA PHYSIOLOGIAE PLANTARUM 33.1(2011):79-91. |
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来源：寒区旱区环境与工程研究所
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