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Responses of soil microbial communities to nutrient limitation in the desert-grassland ecological transition zone
Yongxing Cui1,2; Linchuan Fang1; Xiaobin Guo3; XiaWang1,2; Yunqiang Wang4; Pengfei Li1,2; Yanjiang Zhang1; Xingchang Zhang2; Fang, LC (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
SubtypeArticle
2018
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
description.correspondentemailflinc629@hotmail.com
Volume642Pages:45-55
AbstractSoil microorganisms are crucial to indicate ecosystem functions of terrestrial ecosystems. However, the responses of microbial communities to soil nutrient limitation in desert-grassland are still poorly understood. Hence, we investigated soil microbial community structures and metabolic characteristics in a desert-grassland ecological transition zone from the northern Loess Plateau, China, and explored the association of microbial communities with nutrient limitation via high-throughput sequencing.Threshold elemental ratios (TER) indicated that the microbial communities were strongly limited by nitrogen (N) under A. ordosica and P. tabuliformis communities. The phosphorus (P) limitation of microbial communities was observed in the aeolian sandy soil. The results imply that soil microbial communities had strong nutrient competition for N and P with aboveground vegetation in arid and oligotrophic ecosystems. The LEfSe and linear regression analysis revealed that the microbial taxa of Micrococcales, Micrococcaceae and Herpotrichiellaceae were significantly correlated with microbial N limitation. The Thermoleophilia taxa were significantly correlated with microbial P limitation. These biomarkers related to microbial nutrient limitation could be considered as the key microbial taxa to shape microbial communities and functions. Furthermore. N form had different effects on microbial communities, which NH4+-N strongly affected bacterial communities, whereas NO3--N had a significant influence on fungal communities. The different responses indicate that soil microorganisms had corresponding nutrient preferences for bacterial and fungal communities, which might alleviate the nutrient limitations and environmental stress. This study provided important insights on microbial community structures linking to community functions and on the mechanisms governing microbial N and P limitation in arid land ecosystems. (C) 2018 Elsevier B.V. All rights reserved.
KeywordEcological Transition Zone Community Function Enzyme 16s Rrna Its Rrna Nutrient Limitation
Subject AreaEnvironmental Sciences & Ecology
DOI10.1016/j.scitotenv.2018.06.033
Indexed BySCI
Publication PlacePO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language英语
WOS IDWOS:000439405600005
PublisherELSEVIER SCIENCE BV
Funding OrganizationNational Natural Science Foundation of China [41571314, 41201226] ; National Natural Science Foundation of China [41571314, 41201226] ; CAS "Light of West China" Program [XAB2016A03] ; CAS "Light of West China" Program [XAB2016A03]
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8171
Collection水保所科研产出--SCI_2018--SCI
Corresponding AuthorFang, LC (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
Affiliation1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
3.Govt Newfoundland & Labrador, Dept Fisheries & Land Resources, Agr Prod & Res Div, Corner Brook, NF A2H 6J8, Canada
4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Yongxing Cui,Linchuan Fang,Xiaobin Guo,et al. Responses of soil microbial communities to nutrient limitation in the desert-grassland ecological transition zone[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,642:45-55.
APA Yongxing Cui.,Linchuan Fang.,Xiaobin Guo.,XiaWang.,Yunqiang Wang.,...&Fang, LC .(2018).Responses of soil microbial communities to nutrient limitation in the desert-grassland ecological transition zone.SCIENCE OF THE TOTAL ENVIRONMENT,642,45-55.
MLA Yongxing Cui,et al."Responses of soil microbial communities to nutrient limitation in the desert-grassland ecological transition zone".SCIENCE OF THE TOTAL ENVIRONMENT 642(2018):45-55.
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