Nutrient addition affects scaling relationship of leaf nitrogen to phosphorus in Arabidopsis thaliana

doi:10.1111/1365-2435.13219

	Nutrient addition affects scaling relationship of leaf nitrogen to phosphorus in Arabidopsis thaliana
	Yan, Zhengbing ; Li, Xiuping ; Tian, Di 1; Han, Wenxuan 2; Hou, Xinghui 3; Shen, Haihua 4; Guo, Yalong3 ; Fang, Jingyun
	2018
发表期刊	FUNCTIONAL ECOLOGY
ISSN	0269-8463
卷号	32 期号:12 页码:2689-2698
摘要	Ambient nutrient changes influence the coupling of nitrogen (N) and phosphorus (P) in terrestrial ecosystems, but whether it could alter the scaling relationship of plant leaf N to P concentrations remains unclear. Here, we conducted experimental manipulations using Arabidopsis thaliana, with five levels of N and P additions and nine repeated experiments, and then evaluated the changes in the scaling relationship of leaf N to P concentrations under nutrient additions. Overall, leaf N concentration scaled as 0.552 power of leaf P concentration for all data pooled. However, when considering the effect of the type of nutrient addition, the scaling relationship for pooled data of the five levels of N addition was insignificant at two growth stages (young-leaf and mature-leaf stages), whereas the scaling relationship for pooled data of the five levels of P addition was significant with exponents of 0.290 and 0.268 at the two growth stages, respectively. Furthermore, the scaling exponent decreased with the increasing levels of N addition, but increased with the increasing levels of P addition. This suggests that high nutrient availability decreases the variability in its own concentration, but promotes the fluctuation in another tightly associated nutrient concentration in leaves among plant individuals. We call this as Nutrient Availability-Individual Variability Hypothesis. Our results suggest that scaling relationship of leaf N to P concentrations is largely modulated by the type and level of nutrient addition, and analyses of leaf N vs. P scaling relationships using pooled data could lose much information rooted in biologically and ecologically significant variances. These findings provide important implications for the parameterization in modelling stoichiometric growth and nutrient cycles in terrestrial ecosystems, and for understanding population structures, processes and functioning under varying nutrient environments. However, whether our observed patterns in A. thaliana could be extended to those at community level warrants further studies and more validations. A is available for this article.
关键词	experimental manipulation leaf nitrogen and phosphorus nutrient addition Nutrient Availability-Individual Variability Hypothesis scaling relationship stoichiometry
学科领域	Ecology
DOI	10.1111/1365-2435.13219
收录类别	SCI
语种	英语
WOS关键词	TERRESTRIAL PLANTS ; STOICHIOMETRY ; LIMITATION ; NUTRITION ; PATTERNS ; GROWTH ; ALLOMETRY ; WORLDWIDE ; RESPONSES ; LEAVES
WOS记录号	WOS:000452038300005
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1365-2435
资助机构	China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2017M620004, 2018T110008] ; National Key Research and Development Program of China [2017YFC0503900] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31621091, 31330012]
作者邮箱	jyfang@urban.pku.edu.cn
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/20590
专题	系统与进化植物学国家重点实验室
作者单位	1.Peking Univ, Dept Ecol, Coll Urban & Environm Sci, Beijing, Peoples R China 2.Capital Normal Univ, Coll Life Sci, Beijing, Peoples R China 3.China Agr Univ, Coll Resources & Environm Sci, Key Lab Plant Soil Interact, Minist Educ, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Yan, Zhengbing,Li, Xiuping,Tian, Di,et al. Nutrient addition affects scaling relationship of leaf nitrogen to phosphorus in Arabidopsis thaliana[J]. FUNCTIONAL ECOLOGY,2018,32(12):2689-2698.
APA	Yan, Zhengbing.,Li, Xiuping.,Tian, Di.,Han, Wenxuan.,Hou, Xinghui.,...&Fang, Jingyun.(2018).Nutrient addition affects scaling relationship of leaf nitrogen to phosphorus in Arabidopsis thaliana.FUNCTIONAL ECOLOGY,32(12),2689-2698.
MLA	Yan, Zhengbing,et al."Nutrient addition affects scaling relationship of leaf nitrogen to phosphorus in Arabidopsis thaliana".FUNCTIONAL ECOLOGY 32.12(2018):2689-2698.

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