Arid
DOI10.1002/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
ISSN2045-7758
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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