Rapid response of arbuscular mycorrhizal fungal communities to   short-term fertilization in an alpine grassland on the Qinghai-Tibet   Plateau

doi:10.7717/peerj.2226

CORC > 北京大学 > 城市与环境学院

	Rapid response of arbuscular mycorrhizal fungal communities to short-term fertilization in an alpine grassland on the Qinghai-Tibet Plateau
	Xiang, Xingjia ; Gibbons, Sean M. ; He, Jin-Sheng ; Wang, Chao ; He, Dan ; Li, Qian ; Ni, Yingying ; Chu, Haiyan
刊名	PEERJ
	2016
关键词	Fertilization Plateau Arbuscular mycorrhizal fungi Community Diversity NITROGEN-FERTILIZATION PLANT BIODIVERSITY TERRESTRIAL ECOSYSTEMS BACTERIAL COMMUNITIES PHOSPHORUS LIMITATION SEMIARID GRASSLAND TEMPERATURE STRESS INNER-MONGOLIA SOIL BACTERIAL DIVERSITY
DOI	10.7717/peerj.2226
英文摘要	Background: The Qinghai-Tibet Plateau (QTP) is home to the vast grassland in China. The QTP grassland ecosystem has beenseriously degraded by human land use practices and climate change. Fertilization is used in this region to increase vegetation yields for grazers. The impact of long-term fertilization on plant and microbial communities has been studied extensively. However, the influence of short-term fertilization on arbuscular mycorrhizal fungal (AMF) communities in the QTP is largely unknown, despite their important functional role in grassland ecosystems. Methods: We investigated AMF community responses to three years of N and/or P addition at an experimental field site on the QTP, using the Illumina MiSeq platform (PE 300). Results: Fertilization resulted in a dramatic shift in AMF community composition and NP addition significantly increased AMF species richness and phylogen diversity. Aboveground biomass, available phosphorus, and NO3- were significantly correlated with changes in AMF community structure. Changes in these factors were driven by fertilization treatments. Thus, fertilization had a large impact on AMF communities, mediated by changes in aboveground productivity and soil chemistry. Discussion: Prior work has shown how plants often lower their reliance on AMF symbioses following fertilization, leading to decrease AMF abundance and diversity,. However, our study reports a rise in AMF diversity with fertilization treatment. Because AMF can provide stress tolerance to their hosts, we suggest that extreme weather on the QTP may help drive a positive relationship between fertilizer amendment and AMF diversity.; National Program on Key Basic Research Project (973 Program) [2014CB954002]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB15010101]; National Natural Science Foundation of China [41071121]; SCI(E); PubMed; ARTICLE; hychu@issas.ac.cn; e2226; 4
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/491903]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Xiang, Xingjia,Gibbons, Sean M.,He, Jin-Sheng,et al. Rapid response of arbuscular mycorrhizal fungal communities to short-term fertilization in an alpine grassland on the Qinghai-Tibet Plateau[J]. PEERJ,2016.
APA	Xiang, Xingjia.,Gibbons, Sean M..,He, Jin-Sheng.,Wang, Chao.,He, Dan.,...&Chu, Haiyan.(2016).Rapid response of arbuscular mycorrhizal fungal communities to short-term fertilization in an alpine grassland on the Qinghai-Tibet Plateau.PEERJ.
MLA	Xiang, Xingjia,et al."Rapid response of arbuscular mycorrhizal fungal communities to short-term fertilization in an alpine grassland on the Qinghai-Tibet Plateau".PEERJ (2016).