Elevational diversity and distribution of ammonia-oxidizing archaea community in meadow soils on the Tibetan Plateau

CORC > 地理科学与资源研究所 > 中国科学院地理科学与资源研究所 > 生态系统研究网络观测与模拟重点实验室 > 生态网络实验室

	Elevational diversity and distribution of ammonia-oxidizing archaea community in meadow soils on the Tibetan Plateau
	Zhao, K; Kong, WD; Khan, A; Liu, JB; Guo, GX; Muhanmmad, S; Zhang, XZ; Dong, XB
刊名	APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
	2017
卷号	101 期号:18 页码:7065-7074
关键词	Ammonia-oxidizing archaea amoA gene Meadow Tibetan Plateau Elevation
ISSN号	0175-7598
英文摘要	Unraveling elevational diversity patterns of plants and animals has long been attracting scientific interests. However, whether soil microorganisms exhibit similar elevational patterns remains largely less explored, especially for functional microbial communities, such as ammonia oxidizers. Here, we investigated the diversity and distribution pattern of ammonia-oxidizing archaea (AOA) in meadow soils along an elevation gradient from 4400 m to the grassline at 5100 m on the Tibetan Plateau using terminal restriction fragment length polymorphism (T-RFLP) and sequencing methods by targeting amoA gene. Increasing elevations led to lower soil temperature and pH, but higher nutrients and water content. The results showed that AOA diversity and evenness monotonically increased with elevation, while richness was relatively stable. The increase of diversity and evenness was attributed to the growth inhibition of warm-adapted AOA phylotypes by lower temperature and the growth facilitation of cold-adapted AOA phylotypes by richer nutrients at higher elevations. Low temperature thus played an important role in the AOA growth and niche separation. The AOA community variation was explained by the combined effect of all soil properties (32.6%), and 8.1% of the total variation was individually explained by soil pH. The total AOA abundance decreased, whereas soil potential nitrification rate (PNR) increased with increasing elevations. Soil PNR positively correlated with the abundance of cold-adapted AOA phylotypes. Our findings suggest that low temperature plays an important role in AOA elevational diversity pattern and niche separation, rising the negative effects of warming on AOA diversity and soil nitrification process in the Tibetan region.
学科主题	Biotechnology & Applied Microbiology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000408229200019
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/44014]
专题	生态系统网络观测与模拟院重点实验室_生态网络实验室
推荐引用方式 GB/T 7714	Zhao, K,Kong, WD,Khan, A,et al. Elevational diversity and distribution of ammonia-oxidizing archaea community in meadow soils on the Tibetan Plateau[J]. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,2017,101(18):7065-7074.
APA	Zhao, K.,Kong, WD.,Khan, A.,Liu, JB.,Guo, GX.,...&Dong, XB.(2017).Elevational diversity and distribution of ammonia-oxidizing archaea community in meadow soils on the Tibetan Plateau.APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,101(18),7065-7074.
MLA	Zhao, K,et al."Elevational diversity and distribution of ammonia-oxidizing archaea community in meadow soils on the Tibetan Plateau".APPLIED MICROBIOLOGY AND BIOTECHNOLOGY 101.18(2017):7065-7074.