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Nitrogen addition shifts the microbial community in the rhizosphere of Pinus tabuliformis in Northwestern China
Lv, Fenglian1; Xue, Sha1,2; Wang, Guoliang2; Zhang, Chao2; Wang, GL (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China.
SubtypeArticle
2017
Source PublicationPLOS ONE
ISSN1932-6203
description.correspondentemailglwang@nwsuaf.edu.cn
Volume12Issue:2
AbstractAtmospheric nitrogen (N) deposition profoundly alters the soil microbial communities and will thus affect nutrient cycles. The effects of N availability on microbial community, however, are not clear. We used PLFA analysis to evaluate the effects of a gradient of N addition (0, 2.8, 5.6, 11.2, and 22.4 g N m(-2) y(-1)) for three years on the rhizospheric microbial community of Pinus tabuliformis seedlings. The main factors influencing the community were quantified using structural equation modelling and redundancy analysis. At the microbial-community level, N addition increased the total phospholipid fatty acids content by increasing the dissolved organic carbon (DOC) and root biomass. Increases in soil microbial biomass carbon and N, however, was attributed to the increased DOC, N content and decreased pH. At the microbial-groups level, Fungal, arbuscular mycorrhizal fungal (AMF), gram-positive bacterial (GP) abundances and the GP:GN ratio first increased and then decreased with N addition. Nitrogen addition increased the abundances of bacteria, fungi, and actinomycetes mainly by increasing the DOC content and decreasing root biomass. Additionally, the decrease of pH and ammonium N caused by N addition increased the fungal abundances and reduced actinomycete abundances, respectively. Nitrogen addition shifted the rhizospheric microbial community mainly by altering the DOC content and root biomass. The current rate of N deposition (2.5 g N m(-2) y(-1)) benefits plant growth and increases the abundances of fungi, arbuscular mycorrhizal fungi, GP, actinomycetes and the GP:GN ratio.
Subject AreaScience & Technology - Other Topics
DOI10.1371/journal.pone.0172382
URL查看原文
Indexed BySCI
Publication PlaceSAN FRANCISCO
Language英语
WOS IDWOS:000394688200076
PublisherPUBLIC LIBRARY SCIENCE
Funding Organizationproject of National Natural Science Foundation of China [41371508, 41371510]; Key Technologies RD Program [2015BAC01B03]; key project of natural science foundation research of Shaanxi Province [2013JZ006] ; project of National Natural Science Foundation of China [41371508, 41371510]; Key Technologies RD Program [2015BAC01B03]; key project of natural science foundation research of Shaanxi Province [2013JZ006]
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8031
Collection水保所科研产出--SCI_2017--SCI
Corresponding AuthorWang, GL (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China.
Affiliation1.Northwest A&F Univ, Coll Nat Resources & Environm, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China
2.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Lv, Fenglian,Xue, Sha,Wang, Guoliang,et al. Nitrogen addition shifts the microbial community in the rhizosphere of Pinus tabuliformis in Northwestern China[J]. PLOS ONE,2017,12(2).
APA Lv, Fenglian,Xue, Sha,Wang, Guoliang,Zhang, Chao,&Wang, GL .(2017).Nitrogen addition shifts the microbial community in the rhizosphere of Pinus tabuliformis in Northwestern China.PLOS ONE,12(2).
MLA Lv, Fenglian,et al."Nitrogen addition shifts the microbial community in the rhizosphere of Pinus tabuliformis in Northwestern China".PLOS ONE 12.2(2017).
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