Contrasting effects of nitrogen forms and soil pH on ammonia oxidizing microorganisms and their responses to long-term nitrogen fertilization in a typical steppe ecosystem

doi:10.1007/s00299-017-2150-z

	Contrasting effects of nitrogen forms and soil pH on ammonia oxidizing microorganisms and their responses to long-term nitrogen fertilization in a typical steppe ecosystem
	Ying, Jiaoyan ; Li, Xiaoxiao 1,2; Wang, Nana 3; Lan, Zhichun ; He, Jizheng 2; Bai, Yongfei
	2017
发表期刊	SOIL BIOLOGY & BIOCHEMISTRY
ISSN	0038-0717
卷号	107 页码:10-18
摘要	Ammonia-oxidizing microorganisms, i.e. ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA), are the primary agents responsible for soil nitrification. Few studies, however, have evaluated how AOA and AOB responses to long-term N fertilization are affected by soil pH and different forms of nitrogen (N). We examined the effects of soil acidification and different forms of N (NH4+ and NOD on abundances and community structure of AOA and AOB based on a field acid addition experiment and a short-term microcosm N addition experiment. The field acid addition experiment demonstrated that, with decreasing soil pH, AOB abundance decreased while AOA abtindance mostly increased except for an extremely low pH treatment. Relationships between soil pH and abundance of ammonia oxidizers in the acid addition experiment conflict with those in the long-term N fertilization experiment, indicating a predominant role of N rather than soil pH on responses of AOB and AOA under N inputs. The short-term N addition experiment confirmed the general positive effect of NH4+. on AOB and the negative effect of NOT on AOA which help explain the responses of AOB and AOA abundance to long-term N fertilization. Community structure of ammonia oxidizers, in contrast, showed little response to acid addition and short-term N additions. The positive responses of AOB and not AOA to various N additions revealed a dominant role of AOB in nitrification with broad ranges of soil pH and N availability. We found a negative effect of No-3(-) addition on AOA abundance, which may be a key factor limiting contributions of AOA to nitrification in many soils. (C) 2016 Elsevier Ltd. All rights reserved.
关键词	Ammonia-oxidizing bacteria Ammonia-oxidizing archaea Soil pH N availability Nitrate
学科领域	Plant Sciences
DOI	10.1007/s00299-017-2150-z
收录类别	SCI
语种	英语
WOS关键词	ARCHAEA ; BACTERIA ; DIVERSITY ; OXIDATION ; NITRIFICATION ; ABUNDANCE ; THRESHOLDS ; RATHER
WOS记录号	WOS:000405680300005
出版者	PERGAMON-ELSEVIER SCIENCE LTD
文献子类	Article
出版地	OXFORD
资助机构	State Key Research and Development Program of China [2016YFC0500801] ; Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31170404] ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDA05050400]
作者邮箱	yfbai@ibcas.ac.cn
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/21971
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, 20 Nanxincun, Beijing 100093, Peoples R China 2.Xian Univ, Sch Biol & Environm Engn, Xian 710065, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 4.Jiangxi Agr Univ, Coll Land Resources & Environm, Nanchang 330045, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Ying, Jiaoyan,Li, Xiaoxiao,Wang, Nana,et al. Contrasting effects of nitrogen forms and soil pH on ammonia oxidizing microorganisms and their responses to long-term nitrogen fertilization in a typical steppe ecosystem[J]. SOIL BIOLOGY & BIOCHEMISTRY,2017,107:10-18.
APA	Ying, Jiaoyan,Li, Xiaoxiao,Wang, Nana,Lan, Zhichun,He, Jizheng,&Bai, Yongfei.(2017).Contrasting effects of nitrogen forms and soil pH on ammonia oxidizing microorganisms and their responses to long-term nitrogen fertilization in a typical steppe ecosystem.SOIL BIOLOGY & BIOCHEMISTRY,107,10-18.
MLA	Ying, Jiaoyan,et al."Contrasting effects of nitrogen forms and soil pH on ammonia oxidizing microorganisms and their responses to long-term nitrogen fertilization in a typical steppe ecosystem".SOIL BIOLOGY & BIOCHEMISTRY 107(2017):10-18.

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