Effects of drought and rehydration on the physiological responses of artemisia halodendron
文献类型：期刊论文
| 作者 | Chen, Juanli1,2; Zhao, Xueyong1; Zhang, Yaqiu3; Li, Yuqiang1; Luo, Yongqing1; Ning, Zhiying1,2; Wang, Ruixiong1,2; Wang, Peiyu4; Cong, Anqi1,2 |
| 刊名 | Water
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 11期号:4页码:13 |
| ISSN号 | 2073-4441 |
| 关键词 | Horqin sandy land Hydration-dehydration Chlorophyll fluorescence Lipid peroxidation Antioxidant enzyme activity Solute accumulation |
| DOI | 10.3390/w11040793 |
| 通讯作者 | Chen, juanli(juanlic@163.com) |
| 英文摘要 | Artemisia halodendron is a widely distributed native plant in china's horqin sandy land, but few studies have examined its physiological responses to drought and rehydration. to provide more information, we investigated the effects of drought and rehydration on the chlorophyll fluorescence parameters and physiological responses of a. halodendron to reveal the mechanisms responsible for a. halodendron's tolerance of drought stress and the resulting ability to tolerate drought. we found that a. halodendron had strong drought resistance. its chlorophyll content first increased and then decreased with prolonged drought. variable chlorophyll fluorescence (fv) and quantum efficiency of photosystem ii (fv/fm) decreased, and the membrane permeability and malondialdehyde increased. when plants were subjected to drought stress, superoxide dismutase (sod) activity degraded under severe drought, but the activities of peroxidase (pod) and catalase (cat) and the contents of soluble proteins, soluble sugars, and free proline increased. severe drought caused wilting of a. halodendron leaves and the leaves failed to recover even after rehydration. after rehydration, the chlorophyll content, membrane permeability, sod and cat activities, and the contents of the three osmoregulatory substances under moderate drought began to recover. however, fv, fv/fm, malondialdehyde, and pod activity did not recover under severe drought. these results illustrated that drought tolerance of a. halodendron resulted from increased enzyme (pod and cat) activities and accumulation of osmoregulatory substances. |
| 收录类别 | SCI |
| WOS关键词 | CHLOROPHYLL FLUORESCENCE ; ANTIOXIDANT DEFENSE ; SEED-GERMINATION ; OXIDATIVE STRESS ; WATER RELATIONS ; PROLINE CONTENT ; SOIL ; PHOTOSYNTHESIS ; MALONDIALDEHYDE ; OSMOREGULATION |
| WOS研究方向 | Water Resources |
| WOS类目 | Water Resources |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000473105700163 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555394 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Chen, Juanli |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Beijing 100049, Peoples R China 3.Hanzhong Agr Technol Extens Ctr, Hort Technol Dept, Hanzhong 723000, Peoples R China 4.Northwest Normal Univ, Coll Geog & Environm, Lanzhou 730070, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Juanli,Zhao, Xueyong,Zhang, Yaqiu,et al. Effects of drought and rehydration on the physiological responses of artemisia halodendron[J]. Water,2019,11(4):13. |
| APA | Chen, Juanli.,Zhao, Xueyong.,Zhang, Yaqiu.,Li, Yuqiang.,Luo, Yongqing.,...&Cong, Anqi.(2019).Effects of drought and rehydration on the physiological responses of artemisia halodendron.Water,11(4),13. |
| MLA | Chen, Juanli,et al."Effects of drought and rehydration on the physiological responses of artemisia halodendron".Water 11.4(2019):13. |
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来源：寒区旱区环境与工程研究所
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