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	Sex-specific responses of populus cathayana to drought and elevated temperatures
	Xu, Xiao1,2,3; Yang, Fan1,2; Xiao, Xiangwen1,2; Zhang, Sheng1,2; Korpelainen, Helena4; Li, Chunyang1
刊名	Plant cell and environment
	2008-06-01
卷号	31期号:6页码:850-860
关键词	Abscisic acid Carbon isotope composition Growth traits Photosynthesis
ISSN号	0140-7791
DOI	10.1111/j.1365-3040.2008.01799.x
通讯作者	Li, chunyang(licy@cib.ac.cn)
英文摘要	Dioecious plant species represent an important component of terrestrial ecosystems. yet, little is known about sex-specific responses to drought and elevated temperatures. populus cathayana rehd, which is a dioecious, deciduous tree species, widely distributed in the northern, central and southwestern regions of china, was employed as a model species in our study. in closed-top chamber experiments, sex-specific morphological, physiological and biochemical responses of p. cathayana to drought and different elevated temperatures were investigated. compared with the controls, drought significantly decreased the growth and the net photosynthesis rate (a), and increased the intrinsic water use efficiency (wue(i)), carbon isotope composition (delta(13)c), and the malondialdehyde (mda) and abscisic acid (aba) contents in droughted plants. in contrast, elevated temperatures significantly promoted the growth and the a, but decreased the wue(i), delta(13)c, mda and aba contents in well-watered individuals. when compared with males, elevated temperatures induced well-watered females to express a greater increase in the height growth (hg), basal diameter (bd), leaf area (la), total number of leaves (tnl), dry matter accumulation (dma) and specific leaf area (sla), and a lower decrease in the a value, transpiration (e), stomatal conductance (g(s)), mda and aba contents, while elevated temperatures induced drought-stressed females to exhibit lower values of hg, bd, la, tnl, dma, a, e, g(s) and the intercellular co(2) concentration (c(i)), and higher levels of sla, wue(i), delta(13)c, mda and aba contents. our results indicated that the female individuals of p. cathayana are more responsive and suffer from greater negative effects than do males when grown under environments with increased drought stress and elevated temperature.
WOS关键词	CARBON-ISOTOPE DISCRIMINATION ; PLANT SILENE-LATIFOLIA ; WATER-USE EFFICIENCY ; ABSCISIC-ACID ; ACER-NEGUNDO ; GROWTH-RESPONSES ; DIOECIOUS SHRUB ; PHYSIOLOGICAL-RESPONSES ; HIPPOPHAE-RHAMNOIDES ; SIGNAL-TRANSDUCTION
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000255661700013
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2385369
专题	中国科学院大学
通讯作者	Li, Chunyang
作者单位	1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.China W Normal Univ, Coll Life Sci, Nanchong 637002, Peoples R China 4.Univ Helsinki, Dept Appl Biol, FI-00014 Helsinki, Finland
推荐引用方式 GB/T 7714	Xu, Xiao,Yang, Fan,Xiao, Xiangwen,et al. Sex-specific responses of populus cathayana to drought and elevated temperatures[J]. Plant cell and environment,2008,31(6):850-860.
APA	Xu, Xiao,Yang, Fan,Xiao, Xiangwen,Zhang, Sheng,Korpelainen, Helena,&Li, Chunyang.(2008).Sex-specific responses of populus cathayana to drought and elevated temperatures.Plant cell and environment,31(6),850-860.
MLA	Xu, Xiao,et al."Sex-specific responses of populus cathayana to drought and elevated temperatures".Plant cell and environment 31.6(2008):850-860.

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