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Light-dependent phosphate uptake of a submersed macrophyte Myriophyllum spicatum L.
Zhang, Meng1,2; Cao, Te1; Ni, Leyi1; Xie, Ping1; Zhu, Guorong1; Zhong, Aiwen1; Xu, Jun1; Fu, Hui1; Cao, T, Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, 7th Donghu S Rd, Wuhan 430072, Hubei, Peoples R China; caote@ihb.ac.cn; nily@ihb.ac.cn
2011-05-01
Source PublicationAQUATIC BOTANY
ISSN0304-3770
Volume94Issue:4Pages:151-157
AbstractThe uptake kinetics of phosphate (Pi) by Myriophyllum spicatum was determined from adsorption and absorption under light and dark conditions. Pi uptake was light dependent and showed saturation following the Michaelis-Menten relation (in light: V = 16.91 x [Pi](1.335 + [Pi]), R-2 = 0.90, p < 0.001; in the dark: V = 5.13 x [Pi](0.351 + [Pi]). R-2 = 0.77, p < 0.001). Around 77% of the loss of Pi in the water column was absorbed into the tissue of M. spicatum, and only 23% was adsorbed on the surface of the plant shoots. Our study shows that M. spicatum shoots have a much higher affinity (in light: 3.9 mu mol g(-1) dw h(-1) mu M-1; in the dark: 3.7 mu mol g(-1) dw h(-1) mu M-1) and V-max (maximum uptake rate, shoot light) for Pi uptake than many other aquatic macrophytes (in light: 0.002-0.23 mu mol g(-1) dw h(-1) mu M-1; in the dark: 0.002-0.19 mu mol g(-1) dw h(-1) mu M-1), which may provide a competitive advantage over other macrophytes across a wide range of Pi concentrations. (C) 2011 Elsevier B.V. All rights reserved.; The uptake kinetics of phosphate (Pi) by Myriophyllum spicatum was determined from adsorption and absorption under light and dark conditions. Pi uptake was light dependent and showed saturation following the Michaelis-Menten relation (in light: V = 16.91 x [Pi](1.335 + [Pi]), R(2) = 0.90, p < 0.001; in the dark: V = 5.13 x [Pi](0.351 + [Pi]). R(2) = 0.77, p < 0.001). Around 77% of the loss of Pi in the water column was absorbed into the tissue of M. spicatum, and only 23% was adsorbed on the surface of the plant shoots. Our study shows that M. spicatum shoots have a much higher affinity (in light: 3.9 mu mol g(-1) dw h(-1) mu M(-1); in the dark: 3.7 mu mol g(-1) dw h(-1) mu M(-1)) and V(max) (maximum uptake rate, shoot light) for Pi uptake than many other aquatic macrophytes (in light: 0.002-0.23 mu mol g(-1) dw h(-1) mu M(-1); in the dark: 0.002-0.19 mu mol g(-1) dw h(-1) mu M(-1)), which may provide a competitive advantage over other macrophytes across a wide range of Pi concentrations. (C) 2011 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordSubmersed Macrophyte Myriophyllum Spicatum Phosphate Absorption Phosphate Adsorption
Subject AreaPlant Sciences ; Marine & Freshwater Biology
Department[Zhang, Meng; Cao, Te; Ni, Leyi; Xie, Ping; Zhu, Guorong; Zhong, Aiwen; Xu, Jun; Fu, Hui] Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China; [Zhang, Meng] Jiangxi Acad Environm Sci, Nanchang 330029, Peoples R China
DOI10.1016/j.aquabot.2011.01.004
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Funding OrganizationNational High Technology Research and Development Program of China [2008ZX07106-2, 2008ZX07101-013, 2008ZX07526-008] ; National High Technology Research and Development Program of China [2008ZX07106-2, 2008ZX07101-013, 2008ZX07526-008] ; National High Technology Research and Development Program of China [2008ZX07106-2, 2008ZX07101-013, 2008ZX07526-008] ; National High Technology Research and Development Program of China [2008ZX07106-2, 2008ZX07101-013, 2008ZX07526-008]
Language英语
WOS Research AreaPlant Sciences ; Marine & Freshwater Biology
WOS SubjectPlant Sciences ; Marine & Freshwater Biology
WOS KeywordSEAGRASS THALASSIA-TESTUDINUM ; EELGRASS ZOSTERA-MARINA ; EURASIAN WATERMILFOIL ; HYDRILLA-VERTICILLATA ; UPTAKE KINETICS ; YANGTZE-RIVER ; PHOSPHORUS ; ROOTS ; NITROGEN ; LEAVES
WOS IDWOS:000290502100001
Funding OrganizationNational High Technology Research and Development Program of China [2008ZX07106-2, 2008ZX07101-013, 2008ZX07526-008] ; National High Technology Research and Development Program of China [2008ZX07106-2, 2008ZX07101-013, 2008ZX07526-008] ; National High Technology Research and Development Program of China [2008ZX07106-2, 2008ZX07101-013, 2008ZX07526-008] ; National High Technology Research and Development Program of China [2008ZX07106-2, 2008ZX07101-013, 2008ZX07526-008]
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/15582
Collection淡水生态学研究中心
Corresponding AuthorCao, T, Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, 7th Donghu S Rd, Wuhan 430072, Hubei, Peoples R China; caote@ihb.ac.cn; nily@ihb.ac.cn
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
2.Jiangxi Acad Environm Sci, Nanchang 330029, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Meng,Cao, Te,Ni, Leyi,et al. Light-dependent phosphate uptake of a submersed macrophyte Myriophyllum spicatum L.[J]. AQUATIC BOTANY,2011,94(4):151-157.
APA Zhang, Meng.,Cao, Te.,Ni, Leyi.,Xie, Ping.,Zhu, Guorong.,...&nily@ihb.ac.cn.(2011).Light-dependent phosphate uptake of a submersed macrophyte Myriophyllum spicatum L..AQUATIC BOTANY,94(4),151-157.
MLA Zhang, Meng,et al."Light-dependent phosphate uptake of a submersed macrophyte Myriophyllum spicatum L.".AQUATIC BOTANY 94.4(2011):151-157.
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