Reproductive organ and young tissues show constrained elemental composition in Arabidopsis thaliana

doi:10.1093/aob/mcv190

	Reproductive organ and young tissues show constrained elemental composition in Arabidopsis thaliana
	Yan, Zhengbing ; Guan, Hanyue ; Han, Wenxuan 1; Han, Tingshen 2; Guo, Yalong2 ; Fang, Jingyun
	2016
发表期刊	ANNALS OF BOTANY
ISSN	0305-7364
卷号	117 期号:3 页码:431-439
摘要	Background and Aims The identification of stoichiometric homeostasis is crucial for understanding plant adaptive strategies under a changing environment. However, current knowledge of plant stoichiometric homeostasis has mainly been obtained from mature leaves, with little from other organs across different developmental stages. Methods We conducted a greenhouse nitrogen (N) and phosphorus (P) addition experiment to evaluate the strength of stoichiometric homeostasis across different organs and developmental stages of Arabidopsis thaliana. Key Results Homeostatic regulation coefficients (H) for N (H-N), P (H-P) and N : P ratio (H-NP) were highest in reproductive tissue, followed by stem and leaf at the same stage. All H parameters in the same organ decreased significantly over the developmental stages. Leaf H-N, H-P and H-NP were highest at stage 1, followed by stages 2 and 3. Both stem and silique at stage 2 relative to stage 3 had higher H-N, H-P and H-NP. These results suggested that reproductive tissue relative to other organs and young tissue relative to old tissue showed more constrained elemental composition in response to nutrient availabilities, and such trends were also evidenced by stoichiometric scaling relationships. Conclusions Our findings highlight that stoichiometric homeostasis is tightly related to the ontogenesis of plant tissue. These results could have a strong implication for diagnosing relative availabilities of N and P in ecosystems, suggesting that the N and P stoichiometry of old tissues might be stronger indicators of nutrient status for plants, but further study is needed to test the generality across species with more distinguishable functional traits.
关键词	Arabidopsis thaliana developmental stage N and P concentration N : P ratio organ scaling relationship stoichiometric homeostasis
学科领域	Plant Sciences
DOI	10.1093/aob/mcv190
收录类别	SCI
语种	英语
WOS关键词	N-P RATIOS ; NUTRIENT RESORPTION ; MINERAL-NUTRITION ; GROWTH FORM ; WILD PLANTS ; NITROGEN ; PHOSPHORUS ; STOICHIOMETRY ; SEEDS ; SENESCENCE
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000371690500006
出版者	OXFORD UNIV PRESS
文献子类	Article
出版地	OXFORD
EISSN	1095-8290
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31321061, 31330012, 41173083] ; National Science Foundation for Fostering Talents in Basic Research [J1103406, J0105]
作者邮箱	jyfang@urban.pku.edu.cn
作品OA属性	Bronze, Green Published
引用统计	被引频次：28[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/2S10CLM1/25085
专题	系统与进化植物学国家重点实验室
作者单位	1.Peking Univ, Coll Urban & Environm Sci, Dept Ecol, Beijing 100871, Peoples R China 2.China Agr Univ, Coll Resources & Environm Sci, Key Lab Plant Soil Interact, Minist Educ, Beijing 100193, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Yan, Zhengbing,Guan, Hanyue,Han, Wenxuan,et al. Reproductive organ and young tissues show constrained elemental composition in Arabidopsis thaliana[J]. ANNALS OF BOTANY,2016,117(3):431-439.
APA	Yan, Zhengbing,Guan, Hanyue,Han, Wenxuan,Han, Tingshen,Guo, Yalong,&Fang, Jingyun.(2016).Reproductive organ and young tissues show constrained elemental composition in Arabidopsis thaliana.ANNALS OF BOTANY,117(3),431-439.
MLA	Yan, Zhengbing,et al."Reproductive organ and young tissues show constrained elemental composition in Arabidopsis thaliana".ANNALS OF BOTANY 117.3(2016):431-439.

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