Isotopic turnover of a submersed macrophyte following transplant: the roles of growth and metabolism in eutrophic conditions

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	Isotopic turnover of a submersed macrophyte following transplant: the roles of growth and metabolism in eutrophic conditions
	Xu, Jun; Cao, Te; Zhang, Min; Li, Zhongqiang; Zhang, Meng; Ni, Leyi; Xie, Ping; Xu, J (reprint author), Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, 7 Donghu S Rd, Wuhan 430072, Hubei Province, Peoples R China; xujun@ihb.ac.cn; xieping@ihb.ac.cn
刊名	RAPID COMMUNICATIONS IN MASS SPECTROMETRY
	2011
卷号	25 期号:21 页码:3267-3273
关键词	Particulate Organic-matter Stable-isotopes Laboratory Experiments Vallisneria-natans Atlantic Salmon Carbon Turnover Nitrogen Lake Delta-n-15 Ratios
ISSN号	0951-4198
英文摘要	Stable isotopic turnover with isotopic change due to growth and metabolic tissue replacement associated with a change in environmental conditions is a critical aspect of the use of stable isotope analyses as time-integrating tracers of resource-consumer interactions. However, stable isotopic turnover in plants remains poorly understood compared with those of animals, and here we used continuous flow elemental analyzer-isotopic ratio mass spectrometry (EA-IRMS) to analyse the turnover of stable carbon and nitrogen isotopes in a submersed macrophyte (Vallisneria natans) after transplantation to hypereutrophic and mesoeutrophic treatments in a field mesocosm experiment. The direction and magnitude of the isotopic shifts of V. natans were suggested to be determined by the inorganic nutrient availability and its isotopic content in the different treatments. Based on the modelling results of turnover, the contribution of growth to the isotopic turnover was as high as those observed in various aquatic ectotherms. However, the contribution of metabolism was also considerable, especially for nitrogen in the hypereutrophic treatment, which was argued to be a response, co-occurring with growth inhabitation and biochemical disorder of V. natans, to the stress induced by the eutrophication. Our results indicated that isotope turnover in a macrophyte is a feasible technique for estimating its ecophysiological conditions in the natural environment, and that it may facilitate understanding of isotopic data in field studies of food web and habitat restoration under eutrophic conditions. Copyright (C) 2011 John Wiley & Sons, Ltd.
学科主题	Biochemistry & Molecular Biology ; Chemistry ; Spectroscopy
语种	英语
WOS记录号	WOS:000296428600010
资助机构	National Basic Research Program of China[2008CB418001-1, 2007CB109205]; National Natural Science Foundation of China[30870428, 31170439]; Water Pollution Control and Management Project of China[2008ZX07101-001]; Chinese Academy of Sciences ; National Basic Research Program of China[2008CB418001-1, 2007CB109205]; National Natural Science Foundation of China[30870428, 31170439]; Water Pollution Control and Management Project of China[2008ZX07101-001]; Chinese Academy of Sciences ; National Basic Research Program of China[2008CB418001-1, 2007CB109205]; National Natural Science Foundation of China[30870428, 31170439]; Water Pollution Control and Management Project of China[2008ZX07101-001]; Chinese Academy of Sciences ; National Basic Research Program of China[2008CB418001-1, 2007CB109205]; National Natural Science Foundation of China[30870428, 31170439]; Water Pollution Control and Management Project of China[2008ZX07101-001]; Chinese Academy of Sciences
公开日期	2011-12-22
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/16419]
专题	水生生物研究所_淡水生态学研究中心_期刊论文
通讯作者	Xu, J (reprint author), Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, 7 Donghu S Rd, Wuhan 430072, Hubei Province, Peoples R China; xujun@ihb.ac.cn; xieping@ihb.ac.cn
推荐引用方式 GB/T 7714	Xu, Jun,Cao, Te,Zhang, Min,et al. Isotopic turnover of a submersed macrophyte following transplant: the roles of growth and metabolism in eutrophic conditions[J]. RAPID COMMUNICATIONS IN MASS SPECTROMETRY,2011,25(21):3267-3273.
APA	Xu, Jun.,Cao, Te.,Zhang, Min.,Li, Zhongqiang.,Zhang, Meng.,...&xieping@ihb.ac.cn.(2011).Isotopic turnover of a submersed macrophyte following transplant: the roles of growth and metabolism in eutrophic conditions.RAPID COMMUNICATIONS IN MASS SPECTROMETRY,25(21),3267-3273.
MLA	Xu, Jun,et al."Isotopic turnover of a submersed macrophyte following transplant: the roles of growth and metabolism in eutrophic conditions".RAPID COMMUNICATIONS IN MASS SPECTROMETRY 25.21(2011):3267-3273.