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题名: Linking carbon and nitrogen metabolism to depth distribution of submersed macrophytes using high ammonium dosing tests and a lake survey
作者: Yuan, Guixiang1, 2; Cao, Te1, 3; Fu, Hui4; Ni, Leyi1; Zhang, Xiaolin1; Li, Wei1; Song, Xin1; Xie, Ping1; Jeppesen, Erik3, 5
通讯作者: Cao, T (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China.
关键词: eutrophication ; free amino acid ; NH4+ dosing ; soluble carbohydrate ; submersed macrophytes
刊名: FRESHWATER BIOLOGY
发表日期: 2013-12-01
DOI: 10.1111/fwb.12230
卷: 58, 期:12, 页:2532-2540
收录类别: SCI
文章类型: Article
部门归属: [Yuan, Guixiang ; Cao, Te ; Ni, Leyi ; Zhang, Xiaolin ; Li, Wei ; Song, Xin ; Xie, Ping] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China ; [Yuan, Guixiang] Univ Chinese Acad Sci, Beijing, Peoples R China ; [Cao, Te ; Jeppesen, Erik] Aarhus Univ, Dept Biosci, Silkeborg, Denmark ; [Fu, Hui] Jiangxi Inst Water Sci, Nanchang, Peoples R China ; [Jeppesen, Erik] Sino Danish Ctr Educ & Res, Beijing, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Science Foundation of China [31270508, 41230853]; National High Technology Research and Development Program of China [2012ZX07105-004]; EU [244121]; 'CLEAR' (a Villum Kann Rasmussen Centre of Excellence project); STF project CRES
类目[WOS]: Marine & Freshwater Biology
研究领域[WOS]: Marine & Freshwater Biology
摘要: 1. Strategies of carbon (C) and nitrogen (N) utilisation are among the factors determining plant distribution. It has been argued that submersed macrophytes adapted to lower light environments are more efficient in maintaining C metabolic homeostasis due to their conservative C strategy and ability to balance C shortage. We studied how depth distributions of 12 submersed macrophytes in Lake Erhai, China, were linked to their C-N metabolic strategies when facing acute NH4+ dosing. 2. NH4+ dosing changed C-N metabolism significantly by decreasing the soluble carbohydrate (SC) content and increasing the NH4+-N and free amino acid (FAA) content of plant tissues. 3. The proportional changes in SC contents in the leaves and FAA contents in the stems induced by NH4+ dosing were closely correlated (positive for SC and negative for FAA) with the colonising water depths of the plants in Lake Erhai, the plants adapted to lower light regimes being more efficient in maintaining SC and FAA homeostasis. 4. These results indicate that conservative carbohydrate metabolism of submersed macrophytes allowed the plants to colonise greater water depths in eutrophic lakes, where low light availability in the water column diminishes carbohydrate production by the plants.
英文摘要: 1. Strategies of carbon (C) and nitrogen (N) utilisation are among the factors determining plant distribution. It has been argued that submersed macrophytes adapted to lower light environments are more efficient in maintaining C metabolic homeostasis due to their conservative C strategy and ability to balance C shortage. We studied how depth distributions of 12 submersed macrophytes in Lake Erhai, China, were linked to their C-N metabolic strategies when facing acute NH4+ dosing.
关键词[WOS]: PLANT COMMUNITY STRUCTURE ; FRESH-WATER MACROPHYTES ; SHADE TOLERANCE ; POTAMOGETON-CRISPUS ; VALLISNERIA NATANS ; LIGHT AVAILABILITY ; NH4+ TOXICITY ; AMINO-ACIDS ; GROWTH ; SUN
语种: 英语
WOS记录号: WOS:000326021800008
ISSN号: 0046-5070
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19541
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Aarhus Univ, Dept Biosci, Silkeborg, Denmark
4.Jiangxi Inst Water Sci, Nanchang, Peoples R China
5.Sino Danish Ctr Educ & Res, Beijing, Peoples R China

Recommended Citation:
Yuan, Guixiang; Cao, Te; Fu, Hui; Ni, Leyi; Zhang, Xiaolin; Li, Wei; Song, Xin; Xie, Ping; Jeppesen, Erik.Linking carbon and nitrogen metabolism to depth distribution of submersed macrophytes using high ammonium dosing tests and a lake survey,FRESHWATER BIOLOGY,2013,58(12):2532-2540
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