KMS Institute of soil and water conservation Chinese Academy of Sciences
| 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. | |
| 文章类型 | Article |
| 2018 | |
| 发表期刊 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| ISSN | 0048-9697 |
| 通讯作者邮箱 | flinc629@hotmail.com |
| 卷号 | 642页码:45-55 |
| 摘要 | Soil 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. |
| 关键词 | Ecological Transition Zone Community Function Enzyme 16s Rrna Its Rrna Nutrient Limitation |
| 学科领域 | Environmental Sciences & Ecology |
| DOI | 10.1016/j.scitotenv.2018.06.033 |
| 收录类别 | SCI |
| 出版地 | PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
| 语种 | 英语 |
| WOS记录号 | WOS:000439405600005 |
| 出版者 | ELSEVIER SCIENCE BV |
| 项目资助者 | National 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] |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | sbir.nwafu.edu.cn/handle/361005/8171 |
| 专题 | 水保所科研产出--SCI_2018--SCI |
| 通讯作者 | Fang, LC (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China. |
| 作者单位 | 1.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 |
| 推荐引用方式 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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