Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/ece3.2044 |
Drought responses of three closely related Caragana species: implication for their vicarious distribution | |
Ma, Fei1; Na, Xiaofan2; Xu, Tingting2 | |
通讯作者 | Xu, Tingting |
来源期刊 | ECOLOGY AND EVOLUTION
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ISSN | 2045-7758 |
出版年 | 2016 |
卷号 | 6期号:9页码:2763-2773 |
英文摘要 | Drought is a major environmental constraint affecting growth and distribution of plants in the desert region of the Inner Mongolia plateau. Caragana microphylla, C. liouana, and C. korshinskii are phylogenetically close but distribute vicariously in Mongolia plateau. To gain a better understanding of the ecological differentiation between these three species, we examined the leaf gas exchange, growth, water use efficiency, biomass accumulation and allocation by subjecting their seedlings to low and high drought treatments in a glasshouse. Increasing drought stress had a significant effect on many aspects of seedling performance in all species, but the physiology and growth varied with species in response to drought. C. korshinskii exhibited lower sensitivity of photosynthetic rate and growth, lower specific leaf area, higher biomass allocation to roots, higher levels of water use efficiency to drought compared with the other two species. Only minor interspecific differences in growth performances were observed between C. liouana and C. microphylla. These results indicated that faster seedling growth rate and more efficient water use of C. korshinskii should confer increased drought tolerance and facilitate its establishment in more severe drought regions relative to C. liouana and C. microphylla. |
英文关键词 | Caragana drought stress growth vicarious distribution water use efficiency |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000376149400011 |
WOS关键词 | WATER-USE EFFICIENCY ; PHENOTYPIC PLASTICITY ; INTERSPECIFIC TRANSITION ; PHYSIOLOGICAL-RESPONSES ; GEOGRAPHIC GRADIENT ; ISOTOPE COMPOSITION ; FOLIAR DELTA-N-15 ; GENUS CARAGANA ; C-KORSHINSKII ; GROWTH |
WOS类目 | Ecology ; Evolutionary Biology |
WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/192467 |
作者单位 | 1.Ningxia Univ, Res & Dev Ctr, New Technol Applicat, Yinchuan 750021, Peoples R China; 2.Ningxia Univ, Sch Life Sci, Yinchuan 750021, Peoples R China |
推荐引用方式 GB/T 7714 | Ma, Fei,Na, Xiaofan,Xu, Tingting. Drought responses of three closely related Caragana species: implication for their vicarious distribution[J],2016,6(9):2763-2773. |
APA | Ma, Fei,Na, Xiaofan,&Xu, Tingting.(2016).Drought responses of three closely related Caragana species: implication for their vicarious distribution.ECOLOGY AND EVOLUTION,6(9),2763-2773. |
MLA | Ma, Fei,et al."Drought responses of three closely related Caragana species: implication for their vicarious distribution".ECOLOGY AND EVOLUTION 6.9(2016):2763-2773. |
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