Variation and evolution of C:N ratio among different organs enable plants to adapt to N-limited environments

doi:10.1111/gcb.14973

	Variation and evolution of C:N ratio among different organs enable plants to adapt to N-limited environments
	Zhang, Jiahui 1,2; He, Nianpeng 1,2,3,4; Liu, Congcong 1,2; Xu, Li 2; Chen, Zhi 2; Li, Ying 5; Wang, Ruomeng 1,2; Yu, Guirui 1,2; Sun, Wei 3,4; Xiao, Chunwang 6
刊名	GLOBAL CHANGE BIOLOGY
	2020-01-24
页码	10
关键词	adaptation carbon ecological stoichiometry evolution forest latitude nitrogen variation
ISSN号	1354-1013
DOI	10.1111/gcb.14973
通讯作者	He, Nianpeng(henp@igsnrr.ac.cn)
英文摘要	Carbon (C) and nitrogen (N) are the primary elements involved in the growth and development of plants. The C:N ratio is an indicator of nitrogen use efficiency (NUE) and an input parameter for some ecological and ecosystem models. However, knowledge remains limited about the convergent or divergent variation in the C:N ratios among different plant organs (e.g., leaf, branch, trunk, and root) and how evolution and environment affect the coefficient shifts. Using systematic measurements of the leaf-branch-trunk-root of 2,139 species from tropical to cold-temperate forests, we comprehensively evaluated variation in C:N ratio in different organs in different taxa and forest types. The ratios showed convergence in the direction of change but divergence in the rate of change. Plants evolved toward lower C:N ratios in the leaf and branch, with N playing a more important role than C. The C:N ratio of plant organs (except for the leaf) was constrained by phylogeny, but not strongly. Both the change of C:N during evolution and its spatial variation (lower C:N ratio at midlatitudes) help develop the adaptive growth hypothesis. That is, plants with a higher C:N ratio promote NUE under strong N-limited conditions to ensure survival priority, whereas plants with a lower C:N ratio under less N-limited environments benefit growth priority. In nature, larger proportion of species with a high C:N ratio enabled communities to inhabit more N-limited conditions. Our results provide new insights on the evolution and drivers of C:N ratio among different plant organs, as well as provide a quantitative basis to optimize land surface process models.
资助项目	National Natural Science Foundation of China[31988102] ; National Natural Science Foundation of China[31800368] ; Chinese Academy of Sciences[XDA23080401] ; National Key R&D Program of China[2016YFC0500202] ; Youth Innovation Research Team Project[LENOM2016Q0005]
WOS关键词	NITROGEN LIMITATION ; ATMOSPHERIC NITROGEN ; NUTRIENT LIMITATION ; P STOICHIOMETRY ; COLD-TEMPERATE ; FOREST ; CARBON ; TRAITS ; DEPOSITION ; PATTERNS
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
语种	英语
出版者	WILEY
WOS记录号	WOS:000508925200001
资助机构	National Natural Science Foundation of China ; Chinese Academy of Sciences ; National Key R&D Program of China ; Youth Innovation Research Team Project
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/131424]
专题	中国科学院地理科学与资源研究所
通讯作者	He, Nianpeng
作者单位	1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 3.Northeast Normal Univ, Inst Grassland Sci, Changchun, Peoples R China 4.Minist Educ, Key Lab Vegetat Ecol, Changchun, Peoples R China 5.Beijing Forestry Univ, Key Lab Forest Resources & Ecosyst Proc Beijing, Beijing, Peoples R China 6.Minzu Univ China, Coll Life & Environm Sci, Beijing, Peoples R China 7.Lakehead Univ, Fac Nat Resources Management, Thunder Bay, ON, Canada 8.Fujian Normal Univ, Minist Educ, Key Lab Humid Subtrop Ecogeog Proc, Fuzhou, Peoples R China 9.Univ Minnesota, Dept Forest Resources, St Paul, MN USA 10.Western Sydney Univ, Hawkesbury Inst Environm, Penrith, NSW, Australia
推荐引用方式 GB/T 7714	Zhang, Jiahui,He, Nianpeng,Liu, Congcong,et al. Variation and evolution of C:N ratio among different organs enable plants to adapt to N-limited environments[J]. GLOBAL CHANGE BIOLOGY,2020:10.
APA	Zhang, Jiahui.,He, Nianpeng.,Liu, Congcong.,Xu, Li.,Chen, Zhi.,...&Reich, Peter B..(2020).Variation and evolution of C:N ratio among different organs enable plants to adapt to N-limited environments.GLOBAL CHANGE BIOLOGY,10.
MLA	Zhang, Jiahui,et al."Variation and evolution of C:N ratio among different organs enable plants to adapt to N-limited environments".GLOBAL CHANGE BIOLOGY (2020):10.