气候变化领域集成服务门户(CCPortal): The Potential Roles of Unique Leaf Structure for the Adaptation of Rheum tanguticum Maxim. ex Balf. in Qinghai-Tibetan Plateau

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DOI	10.3390/plants11040512
	The Potential Roles of Unique Leaf Structure for the Adaptation of Rheum tanguticum Maxim. ex Balf. in Qinghai-Tibetan Plateau
	Hu, Yanping; Zhang, Huixuan; Qian, Qian; Lin, Gonghua; Wang, Jun; Sun, Jing; Li, Yi; Jang, Jyan-Chyun; Li, Wenjing
通讯作者	Li, Y (通讯作者)，Chinese Acad Sci, Northwest Inst Plateau Biol, Qinghai Prov Key Lab Qinghai Tibet Plateau Biol R, Xining 810008, Peoples R China. ; Jang, JC (通讯作者)，Ohio State Univ, Dept Hort & Crop Sci, Columbus, OH 43210 USA. ; Li, WJ (通讯作者)，Qinghai Prov Key Lab Anim Ecol Genom, Sci Res & Popularizat Base Qinghai Tibet Plateau, Xining 810008, Peoples R China. ; Li, WJ (通讯作者)，Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China.
发表日期	2022
EISSN	2223-7747
卷号	11 期号:4
英文摘要	Leaves are essential plant organs with numerous variations in shape and size. The leaf size is generally smaller in plants that thrive in areas of higher elevation and lower annual mean temperature. The Qinghai-Tibetan Plateau is situated at an altitude of >4000 m with relatively low annual average temperatures. Most plant species found on the Qinghai-Tibetan Plateau have small leaves, with Rheum tanguticum Maxim. ex Balf. being an exception. Here, we show that the large leaves of R. tanguticum with a unique three-dimensional (3D) shape are potentially an ideal solution for thermoregulation with little energy consumption. With the increase in age, the shape of R. tanguticum leaves changed from a small oval plane to a large palmatipartite 3D shape. Therefore, R. tanguticum is a highly heteroblastic species. The leaf shape change during the transition from the juvenile to the adult phase of the development in R. tanguticum is a striking example of the manifestation of plant phenotypic plasticity. The temperature variation in different parts of the leaf was a distinct character of leaves of over-5-year-old plants. The temperature of single-plane leaves under strong solar radiation could accumulate heat rapidly and resulted in temperatures much higher than the ambient temperature. However, leaves of over-5-year-old plants could lower leaf temperature by avoiding direct exposure to solar radiation and promoting local airflow to prevent serious tissue damage by sunburn. Furthermore, the net photosynthesis rate was correlated with the heterogeneity of the leaf surface temperature. Our results demonstrate that the robust 3D shape of the leaf is a strategy that R. tanguticum has developed evolutionarily to adapt to the strong solar radiation and low temperature on the Qinghai-Tibetan Plateau.
关键词	PHASE-CHANGE LEAVES SIZE TEMPERATURE HIMALAYA PLANT HEAT
英文关键词	Rheum tanguticum; Qinghai-Tibetan Plateau; phenotypic plasticity; heteroblasty; 3D leaf shape; leaf-surface temperature; leaf thermoregulation
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:000762866500001
来源期刊	PLANTS-BASEL
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254513
作者单位	[Hu, Yanping; Zhang, Huixuan; Qian, Qian; Wang, Jun; Sun, Jing; Li, Yi] Chinese Acad Sci, Northwest Inst Plateau Biol, Qinghai Prov Key Lab Qinghai Tibet Plateau Biol R, Xining 810008, Peoples R China; [Zhang, Huixuan; Qian, Qian; Wang, Jun; Sun, Jing] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Lin, Gonghua] Jinggangshan Univ, Sch Life Sci, Jian 343009, Jiangxi, Peoples R China; [Jang, Jyan-Chyun] Ohio State Univ, Dept Hort & Crop Sci, Columbus, OH 43210 USA; [Li, Wenjing] Qinghai Prov Key Lab Anim Ecol Genom, Sci Res & Popularizat Base Qinghai Tibet Plateau, Xining 810008, Peoples R China; [Li, Wenjing] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China
推荐引用方式 GB/T 7714	Hu, Yanping,Zhang, Huixuan,Qian, Qian,et al. The Potential Roles of Unique Leaf Structure for the Adaptation of Rheum tanguticum Maxim. ex Balf. in Qinghai-Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2022,11(4).
APA	Hu, Yanping.,Zhang, Huixuan.,Qian, Qian.,Lin, Gonghua.,Wang, Jun.,...&Li, Wenjing.(2022).The Potential Roles of Unique Leaf Structure for the Adaptation of Rheum tanguticum Maxim. ex Balf. in Qinghai-Tibetan Plateau.PLANTS-BASEL,11(4).
MLA	Hu, Yanping,et al."The Potential Roles of Unique Leaf Structure for the Adaptation of Rheum tanguticum Maxim. ex Balf. in Qinghai-Tibetan Plateau".PLANTS-BASEL 11.4(2022).