Nitrogen addition shifts the microbial community in the rhizosphere of Pinus tabuliformis in Northwestern China

doi:10.1371/journal.pone.0172382

ISWC OpenIR > 水保所科研产出--SCI > 2017--SCI

	Nitrogen addition shifts the microbial community in the rhizosphere of Pinus tabuliformis in Northwestern China
	Lv, Fenglian 1; Xue, Sha 1,2; Wang, Guoliang 2; Zhang, Chao 2; Wang, GL (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China.
文章类型	Article
	2017
发表期刊	PLOS ONE
ISSN	1932-6203
通讯作者邮箱	glwang@nwsuaf.edu.cn
卷号	12 期号:2
摘要	Atmospheric 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.
学科领域	Science & Technology - Other Topics
DOI	10.1371/journal.pone.0172382
URL	查看原文
收录类别	SCI
出版地	SAN FRANCISCO
语种	英语
WOS记录号	WOS:000394688200076
出版者	PUBLIC LIBRARY SCIENCE
项目资助者	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] ; 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]
引用统计
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/8031
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Wang, GL (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China.
作者单位	1.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
推荐引用方式 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).