Leaf anatomical structures of Paphiopedilum and Cypripedium and their adaptive significance

CORC > 昆明植物研究所 > 中国科学院昆明植物研究所 > 资源植物与生物技术所级重点实验室

	Leaf anatomical structures of Paphiopedilum and Cypripedium and their adaptive significance
	Guan, Zhi-Jie 1,2; Zhang, Shi-Bao3 ; Guan, Kai-Yun 1; Li, Shu-Yun 1; Hu, Hong1
刊名	JOURNAL OF PLANT RESEARCH
	2011-03-01
卷号	124 期号:2 页码:289-298
关键词	Cypripedium Leaf anatomical structure Leaf trait Paphiopedilum Stomata
ISSN号	0918-9440
通讯作者	Hu, H (reprint author), Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China
英文摘要	Paphiopedilum and Cypripedium are closely related in phylogeny, but have contrasting leaf traits and habitats. To understand the divergence in leaf traits of Paphiopedilum and Cypripedium and their adaptive significance, we analyzed the leaf anatomical structures, leaf dry mass per area (LMA), leaf lifespan (LL), leaf nitrogen concentration (N(mass)), leaf phosphorus concentration (P(mass)), mass-based light-saturated photosynthetic rate (A(mass)), water use efficiency (WUE), photosynthetic nitrogen use efficiency (PNUE) and leaf construction cost (CC) for six species. Compared with Cypripedium, Paphiopedilum was characterized by drought tolerance derived from its leaf anatomical structures, including fleshy leaves, thick surface cuticles, huge adaxial epidermis cells, lower total stoma area, and sunken stomata. The special leaf structures of Paphiopedilum were accompanied by longer LL; higher LMA, WUE, and CC; and lower N(mass), P(mass), A(mass), and PNUE compared with Cypripedium. Leaf traits in Paphiopedilum helped it adapt to arid and nutrient-poor karst habitats. However, the leaf traits of Cypripedium reflect adaptations to an environment characterized by rich soil, abundant soil water, and significant seasonal fluctuations in temperature and precipitation. The present results contribute to our understanding of the divergent adaptation of leaf traits in slipper orchids, which is beneficial for the conservation of endangered orchids.
学科主题	Plant Sciences
类目[WOS]	Plant Sciences
研究领域[WOS]	Plant Sciences
关键词[WOS]	LIFE-SPAN ; TRAITS ; MICROMORPHOLOGY ; CONSTRUCTION ; ORCHIDACEAE ; CONDUCTANCE ; PERFORMANCE ; PHYSIOLOGY ; RAINFALL ; FLAVUM
收录类别	SCI
资助信息	National Natural Science Foundation of China[30770225, 30870239]; Social Development Plan of Yunnan[2007C001Z]
语种	英语
WOS记录号	WOS:000289859200009
公开日期	2012-04-10
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/5241]
专题	昆明植物研究所_资源植物与生物技术所级重点实验室
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Kunming 650223, Peoples R China
推荐引用方式 GB/T 7714	Guan, Zhi-Jie,Zhang, Shi-Bao,Guan, Kai-Yun,et al. Leaf anatomical structures of Paphiopedilum and Cypripedium and their adaptive significance[J]. JOURNAL OF PLANT RESEARCH,2011,124(2):289-298.
APA	Guan, Zhi-Jie,Zhang, Shi-Bao,Guan, Kai-Yun,Li, Shu-Yun,&Hu, Hong.(2011).Leaf anatomical structures of Paphiopedilum and Cypripedium and their adaptive significance.JOURNAL OF PLANT RESEARCH,124(2),289-298.
MLA	Guan, Zhi-Jie,et al."Leaf anatomical structures of Paphiopedilum and Cypripedium and their adaptive significance".JOURNAL OF PLANT RESEARCH 124.2(2011):289-298.