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Differentiation in drought tolerance mirrors the geographic distributions of alpine plants on the Qinghai-Tibet Plateau and adjacent highlands
Meng, Li-Hua1; Yang, Jie1; Guo, Wen2; Tian, Bin2; Chen, Guang-Jie3; Yang, Yong-Ping2; Duan, Yuan-Wen2
2017-02-14
Source PublicationSCIENTIFIC REPORTS
Volume7Issue:1Pages:42466
AbstractClimatic tolerance, especially drought tolerance, is one of the major factors shaping the geographic distributions of plant species. Thus, the general decline in rainfall from the Himalaya-Hengduan Mountains (HHM) to the inner Qinghai-Tibet Plateau (QTP) might account for the significant differences in species distributions and richness between the two regions. To test this hypothesis, we conducted a water stress experiment using four Anisodus species (A. tanguticus, A. luridus, A. carniolicoides and A. acutangulus), which were treated with different levels of water stress in a glasshouse, and examined their differences in physiological responses. The results suggest that A. tanguticus, which inhabits the inner QTP, generally has higher fitness under severe water stress than the other species based on its high root: shoot ratio, long-term water use efficiency and photosynthetic rate, indicating that it possesses a genetically based drought tolerance mechanism. Our results suggest that plant species inhabiting the inner QTP may be more drought tolerant than those inhabiting the HHM regions. This provides a new example supporting the hypothesis that climatic tolerance plays a major role in shaping plant distributions on the QTP and its adjacent highlands and presents new insights into the patterns of geographic distribution and diversity of the plants inhabiting these areas.
DOI10.1038/srep42466
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000393941800002
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/46029
Collection资源植物与生物技术所级重点实验室
Affiliation1.Yunnan Normal Univ, Key Lab Yunnan Biomass Energy & Biotechnol Enviro, Sch Life Sci, Kunming 650092, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Kunming 650201, Peoples R China
3.Yunnan Normal Univ, Sch Tourism & Geog, Key Lab Plateau Lake Ecol & Global Change, Kunming 650500, Peoples R China
Recommended Citation
GB/T 7714
Meng, Li-Hua,Yang, Jie,Guo, Wen,et al. Differentiation in drought tolerance mirrors the geographic distributions of alpine plants on the Qinghai-Tibet Plateau and adjacent highlands[J]. SCIENTIFIC REPORTS,2017,7(1):42466.
APA Meng, Li-Hua.,Yang, Jie.,Guo, Wen.,Tian, Bin.,Chen, Guang-Jie.,...&Duan, Yuan-Wen.(2017).Differentiation in drought tolerance mirrors the geographic distributions of alpine plants on the Qinghai-Tibet Plateau and adjacent highlands.SCIENTIFIC REPORTS,7(1),42466.
MLA Meng, Li-Hua,et al."Differentiation in drought tolerance mirrors the geographic distributions of alpine plants on the Qinghai-Tibet Plateau and adjacent highlands".SCIENTIFIC REPORTS 7.1(2017):42466.
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