Physiological Responses of Dominant Alpine Plant Species to Environmental Gradients on the Tibetan Plateau
文献类型：期刊论文
| 作者 | Liu, Xiaotong2,3; Wu, Junxi2,3; Zhou, Huanyu2,3; Gao, Xianlei1; Ye, Lanlan2,3; Huang, Xiaofang2,3; Zhang, Xianzhou2,3; Xiang, Mingxue4; Pan, Ying2,3 |
| 刊名 | PLANTS-BASEL
 |
| 出版日期 | 2026-02-27 |
| 卷号 | 15期号:5页码:719 |
| 关键词 | physiological traits Tibetan Plateau temperature and precipitation alpine plants stress |
| ISSN号 | 2223-7747 |
| DOI | 10.3390/plants15050719 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Understanding how plant physiological traits respond to environmental variation is essential for explaining plant performance in alpine ecosystems. Based on field sampling along an elevational transect on the Tibetan Plateau, we quantified osmotic adjustment compounds, antioxidant indicators, and plant hormones in leaves of different species to examine interspecific differences in sensitivity to temperature and precipitation to characterize patterns of physiological plasticity among alpine plants. Along the elevational gradient, declining temperature results in increasing cold stress, whereas lower elevations are associated with reduced precipitation and intensified drought stress. Temperature primarily influenced plant physiological trait expression by promoting growth-related physiological processes, while precipitation variability mainly regulated traits associated with water stress. The three dominant alpine meadow species exhibited distinct patterns of physiological plasticity: Poa litwinowiana showed coordinated regulation of growth and defense pathways, whereas Carex moorcroftii and Carex parvula displayed more conservative response strategies, with physiological regulation tending to maintain homeostasis rather than strongly activating stress responses. These interspecific differences in physiological regulation were significantly associated with variations in plant height, cover, and dominance, providing trait-level physiological insights relevant to plant performance. |
| URL标识 | 查看原文 |
| WOS关键词 | DIFFERENT ALTITUDES ; LOCAL ADAPTATION ; STRESS TOLERANCE ; ABSCISIC-ACID ; COLD ; LEAVES |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001713581800001 |
| 出版者 | MDPI |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221324]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 通讯作者 | Wu, Junxi; Pan, Ying |
| 作者单位 | 1.Tibet Univ, Sch Ecol & Environm, Lhasa 850000, Peoples R China; 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China; 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China; 4.Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining 810018, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xiaotong,Wu, Junxi,Zhou, Huanyu,et al. Physiological Responses of Dominant Alpine Plant Species to Environmental Gradients on the Tibetan Plateau[J]. PLANTS-BASEL,2026,15(5):719. |
| APA | Liu, Xiaotong.,Wu, Junxi.,Zhou, Huanyu.,Gao, Xianlei.,Ye, Lanlan.,...&Pan, Ying.(2026).Physiological Responses of Dominant Alpine Plant Species to Environmental Gradients on the Tibetan Plateau.PLANTS-BASEL,15(5),719. |
| MLA | Liu, Xiaotong,et al."Physiological Responses of Dominant Alpine Plant Species to Environmental Gradients on the Tibetan Plateau".PLANTS-BASEL 15.5(2026):719. |
入库方式： OAI收割
来源：地理科学与资源研究所
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