Plasticity of Plant N Uptake in Two Native Species in Response to Invasive Species
Hu, Yi-Heng1; Zhou, Yu-Lu1,2; Gao, Jun-Qin1; Zhang, Xiao-Ya1; Song, Ming-Hua3; Xu, Xing-Liang3
Source PublicationFORESTS
Corresponding AuthorGao, Jun-Qin(gaojq@bjfu.edu.cn)
AbstractSurvival competition caused by limiting nutrients is often strong between invasive and native plant species. The effects of plant invasion on nutrient uptake in plant growth remain largely unclear. Clarifying how invasive plants affect N uptake by natives will provide a better understanding on mechanisms responsible for plant invasion. A N-15-labeling experiment was conducted using two common invasive species (Alternanthera philoxeroides (Mart.) Griseb. and Wedelia trilobata (L.) Hitchc.) and their native congeners (A. sessilis (L.) DC. and W. chinensis (Osbeck.) Merr.) to examine their growth and uptake of NH4+, NO3-, and glycine when grown in monocultures and mixed cultures. All plants were grown in a greenhouse for 70 days for labelling and biomass measurements. The main factor affecting N uptake by the four species was the form of N, rather than species identity. In all of the species, the most N was taken up in the form of NH4+, followed by NO3- and glycine. The two invasive species grew faster, with stable N-uptake patterns despite more moderate uptake rates of N than the native species. Native species were strongly affected by the invasive species. The presence of invasive species caused the N-uptake rates of the natives to be reduced, with altered N-uptake patterns, but did not substantially alter their growth rates. Native species reduced their N-uptake rates but increased N-use efficiency through altering N-uptake patterns in the presence of invasive plants. Such a flexible N-uptake pattern could be an important survival strategy for native plants in competition with invaders.
KeywordN-15 labelling N-uptake pattern invasive species native species resource competition survival strategy
Indexed BySCI
Funding ProjectNational Natural Science Foundation of China[41571084] ; Fundamental Research Funds for the Central Universities[2015ZCQ-BH-01]
Funding OrganizationNational Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
WOS Research AreaForestry
WOS SubjectForestry
WOS IDWOS:000507288400089
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorGao, Jun-Qin
Affiliation1.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing 100083, Peoples R China
2.Guizhou Water Conservat Sci & Res Inst, Guiyang 550002, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Hu, Yi-Heng,Zhou, Yu-Lu,Gao, Jun-Qin,et al. Plasticity of Plant N Uptake in Two Native Species in Response to Invasive Species[J]. FORESTS,2019,10(12):11.
APA Hu, Yi-Heng,Zhou, Yu-Lu,Gao, Jun-Qin,Zhang, Xiao-Ya,Song, Ming-Hua,&Xu, Xing-Liang.(2019).Plasticity of Plant N Uptake in Two Native Species in Response to Invasive Species.FORESTS,10(12),11.
MLA Hu, Yi-Heng,et al."Plasticity of Plant N Uptake in Two Native Species in Response to Invasive Species".FORESTS 10.12(2019):11.
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