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Fertile sediment and ammonium enrichment decrease the growth and biomechanical strength of submersed macrophyte Myriophyllum spicatum in an experiment
Zhu, Guorong1,2; Cao, Te1; Zhang, Meng3; Ni, Leyi1; Zhang, Xiaolin1; Cao, T (reprint author), 7 Donghu South Rd, Wuhan, Hubei, Peoples R China.
2014-04-01
Source PublicationHYDROBIOLOGIA
ISSN0018-8158
Volume727Issue:1Pages:109-120
AbstractDecline of submersed macrophytes has occurred in eutrophic lakes worldwide. Little is known about effects of nutrient enrichment on biomechanical properties of submersed macrophytes. In a 30-day experiment, Myriophyllum spicatum was cultured in aquaria containing two types of sediment (mesotrophic clay vs. fertile loam) with contrasting water NH4 (+) concentrations (0 vs. 3.0 mg L-1 NH4-N). The plant growth, shoot and root morphology, stem biomechanical properties, and stem total nonstructure carbohydrates content (TNC) were examined. The NH4 (+)-enriched water, particularly combined with the fertile sediment, caused adverse effects on M. spicatum as indicated by reductions in the growth, stem biomechanical properties (tensile force, bending force and structural stiffness), and TNC content. These results indicate that increased sediment fertility and water NH4 (+)-enrichment made the plant more fragile and vulnerable to hydraulic damage, particularly for the upper stem, implying that M. spicatum was prone to uprooting and fracture by hydraulic force, and the broken fragment from parent shoot of M. spicatum might have low-survival potential due to its low-TNC content. This may be a mechanical aspect for the decline of submersed macrophytes and makes it more difficult to restore submersed vegetation in the eutrophic lakes.; Decline of submersed macrophytes has occurred in eutrophic lakes worldwide. Little is known about effects of nutrient enrichment on biomechanical properties of submersed macrophytes. In a 30-day experiment, Myriophyllum spicatum was cultured in aquaria containing two types of sediment (mesotrophic clay vs. fertile loam) with contrasting water NH4 (+) concentrations (0 vs. 3.0 mg L-1 NH4-N). The plant growth, shoot and root morphology, stem biomechanical properties, and stem total nonstructure carbohydrates content (TNC) were examined. The NH4 (+)-enriched water, particularly combined with the fertile sediment, caused adverse effects on M. spicatum as indicated by reductions in the growth, stem biomechanical properties (tensile force, bending force and structural stiffness), and TNC content. These results indicate that increased sediment fertility and water NH4 (+)-enrichment made the plant more fragile and vulnerable to hydraulic damage, particularly for the upper stem, implying that M. spicatum was prone to uprooting and fracture by hydraulic force, and the broken fragment from parent shoot of M. spicatum might have low-survival potential due to its low-TNC content. This may be a mechanical aspect for the decline of submersed macrophytes and makes it more difficult to restore submersed vegetation in the eutrophic lakes.
SubtypeArticle
KeywordAmmonium Enrichment Eutrophication Biomechanical Properties Myriophyllum Spicatum Nonstructure Carbohydrate
Department[Zhu, Guorong ; Cao, Te ; Ni, Leyi ; Zhang, Xiaolin] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China ; [Zhu, Guorong] Henan Normal Univ, Coll Fisheries, Xinxiang 453007, Peoples R China ; [Zhang, Meng] Jiangxi Acad Environm Sci, Nanchang 330029, Peoples R China
DOI10.1007/s10750-013-1792-2
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationNational High Technology Research and the Development Program of China [2012ZX07105-004]; National Natural Science Foundation of China [31270508, 41230853] ; National High Technology Research and the Development Program of China [2012ZX07105-004]; National Natural Science Foundation of China [31270508, 41230853] ; National High Technology Research and the Development Program of China [2012ZX07105-004]; National Natural Science Foundation of China [31270508, 41230853] ; National High Technology Research and the Development Program of China [2012ZX07105-004]; National Natural Science Foundation of China [31270508, 41230853]
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS IDWOS:000330967900008
WOS KeywordLIGHT AVAILABILITY ; AQUATIC PLANTS ; MECHANICAL RESISTANCE ; VALLISNERIA-NATANS ; HYDRAULIC FORCES ; SHALLOW LAKES ; STRESS ; WATER ; MORPHOLOGY ; RESPONSES
Funding OrganizationNational High Technology Research and the Development Program of China [2012ZX07105-004]; National Natural Science Foundation of China [31270508, 41230853] ; National High Technology Research and the Development Program of China [2012ZX07105-004]; National Natural Science Foundation of China [31270508, 41230853] ; National High Technology Research and the Development Program of China [2012ZX07105-004]; National Natural Science Foundation of China [31270508, 41230853] ; National High Technology Research and the Development Program of China [2012ZX07105-004]; National Natural Science Foundation of China [31270508, 41230853]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/20018
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorCao, T (reprint author), 7 Donghu South Rd, Wuhan, Hubei, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China
2.Henan Normal Univ, Coll Fisheries, Xinxiang 453007, Peoples R China
3.Jiangxi Acad Environm Sci, Nanchang 330029, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Guorong,Cao, Te,Zhang, Meng,et al. Fertile sediment and ammonium enrichment decrease the growth and biomechanical strength of submersed macrophyte Myriophyllum spicatum in an experiment[J]. HYDROBIOLOGIA,2014,727(1):109-120.
APA Zhu, Guorong,Cao, Te,Zhang, Meng,Ni, Leyi,Zhang, Xiaolin,&Cao, T .(2014).Fertile sediment and ammonium enrichment decrease the growth and biomechanical strength of submersed macrophyte Myriophyllum spicatum in an experiment.HYDROBIOLOGIA,727(1),109-120.
MLA Zhu, Guorong,et al."Fertile sediment and ammonium enrichment decrease the growth and biomechanical strength of submersed macrophyte Myriophyllum spicatum in an experiment".HYDROBIOLOGIA 727.1(2014):109-120.
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