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

doi:10.1007/s11104-018-3845-9

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Linkage of plant and abiotic properties to the abundance and activity of N-cycling microbial communities in Tibetan permafrost-affected regions
	Chen, Yongliang ; Kou, Dan 2; Li, Fei 2; Ding, Jinzhi ; Yang, Guibiao 2; Fang, Kai 2; Yang, Yuanhe 2
刊名	PLANT AND SOIL
	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
DOI	10.1007/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
电子版国际标准刊号	1573-5036
出版地	DORDRECHT
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
出版者	SPRINGER
WOS记录号	WOS:000458270300029
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
内容类型	期刊论文
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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, 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.