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Linkage of plant and abiotic properties to the abundance and activity of N-cycling microbial communities in Tibetan permafrost-affected regions

文献类型：期刊论文

作者Chen, Yongliang; Kou, Dan1; Li, Fei1; Ding, Jinzhi; Yang, Guibiao1; Fang, Kai1; Yang, Yuanhe1
刊名PLANT AND SOIL
出版日期2019
卷号434期号:1-2页码:453-466
关键词Ammonia oxidation Ammonia-oxidizing microorganism Biogeography Denitrifiers denitrification Permafrost
ISSN号0032-079X
DOI10.1007/s11104-018-3845-9
文献子类Article
英文摘要AimsAmmonia oxidation and denitrification are crucial for nitrogen (N) availability and nitrous oxide production in N-limited permafrost soils. However, it remains unclear about the relative roles of abiotic and biotic properties in controlling the abundance and activity of ammonia-oxidizing and denitrifying microorganisms in permafrost-affected soils.MethodsWe analysed the potential ammonia oxidation and denitrification rates (PAO and PDR), the abundance of archaeal amoA, bacterial amoA, nirK, nirS and nosZ genes, soil characteristics, climatic and plant properties across two vegetation types in Tibetan permafrost-affected soils. The relative importance of abiotic and biotic properties in driving functional N gene abundance, PAO and PDR were assessed using variation partition analysis (VPA) and random forest (RF) model.ResultsThe functional N gene abundance and PDR were lower in alpine steppe than in alpine meadow. Variations in the PAO and PDR and functional N gene abundance were mainly explained by abiotic variables such as organic carbon and total N, then by plant properties such as plant N concentration, plant species richness and productivity based on the VPA. The RF model showed that abiotic properties (e.g., precipitation) and plant properties (e.g., plant N concentration or plant productivity) predicted the PDR and the abundance of functional N genes. Both VPA and RF model showed that the PAO and PDR could be determined by the abundance of functional N genes such as archaeal amoA gene and nosZ gene, respectively.ConclusionsOur study highlights that abiotic and plant properties are important predictors of the abundance and activity of ammonia-oxidizing and denitrifying communities in permafrost-affected regions, implying that plant properties, which were previously overlooked, should be incorporated into ecosystem models for improved prediction of belowground N process rates in a changing environment.
学科主题Agronomy ; Plant Sciences ; Soil Science
出版地DORDRECHT
电子版国际标准刊号1573-5036
WOS关键词AMMONIA-OXIDIZING BACTERIA ; NITROUS-OXIDE PRODUCTION ; DENITRIFIER ABUNDANCE ; ARCTIC ECOSYSTEMS ; POPULATION-SIZE ; N2O PRODUCTION ; ARCHAEA ; DIVERSITY ; OXIDATION ; FERTILIZATION
WOS研究方向Agriculture ; Plant Sciences
语种英语
WOS记录号WOS:000458270300029
出版者SPRINGER
资助机构National Key Research and Development Program of China [2017YFA0604803, 2016YFC0500701] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41877046, 41501265, 31670482] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences [QYZDB-SSW-SMC049] ; Chinese Academy of Sciences-Peking University Pioneer Cooperation Team
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/19573]  
专题植被与环境变化国家重点实验室
作者单位1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Yongliang,Kou, Dan,Li, Fei,et al. Linkage of plant and abiotic properties to the abundance and activity of N-cycling microbial communities in Tibetan permafrost-affected regions[J]. PLANT AND SOIL,2019,434(1-2):453-466.
APA Chen, Yongliang.,Kou, Dan.,Li, Fei.,Ding, Jinzhi.,Yang, Guibiao.,...&Yang, Yuanhe.(2019).Linkage of plant and abiotic properties to the abundance and activity of N-cycling microbial communities in Tibetan permafrost-affected regions.PLANT AND SOIL,434(1-2),453-466.
MLA Chen, Yongliang,et al."Linkage of plant and abiotic properties to the abundance and activity of N-cycling microbial communities in Tibetan permafrost-affected regions".PLANT AND SOIL 434.1-2(2019):453-466.

入库方式： OAI收割

来源：植物研究所

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