干旱区生态环境知识资源中心(Arid): Comammox dominate soil nitrification under different N fertilization regimes in semi-arid areas of Northeast China

Arid

DOI	10.1016/j.apsoil.2023.105119
	Comammox dominate soil nitrification under different N fertilization regimes in semi-arid areas of Northeast China
	Feng, Xuewan; Wang, Meng; Li, Qian; Qin, Yubo; Sun, Bo; Tan, Pan; Liu, Hang; Li, Cuilan; Zhang, Jinjing
通讯作者	Liu, H ; Li, CL ; Zhang, JJ
来源期刊	APPLIED SOIL ECOLOGY
ISSN	0929-1393
EISSN	1873-0272
出版年	2024
卷号	193
英文摘要	The newly identified complete ammonia oxidation (Comammox), which is capable of oxidizing ammonia directly to nitrate, has complemented the knowledge of nitrification in the global nitrogen (N) cycle. Knowledge of the community compositions and contributions to nitrification of autotrophic ammonia-oxidizing archaea (AOA) and bacteria (AOB) and Comammox remain void. In this study, the abundance, community compositions, and con-tributions to nitrification of AOA, AOB, and Comammox were observed in five N gradients (0, 90, 150, 210, and 270 kg ha-1) in a semi-arid area of Northeast China. The results indicated that, compared with low N application rates, higher N application rates significantly improved the soil ammonia monooxygenase (AMO) and the hy-droxylamine oxidase (HAO) activities while total nitrogen (TN) was noted to be the main factor driving AMO and HAO activities. Soil potential nitrification rate (PNR) significantly increased with the increase in N application rate, and soil PNR was positively correlated with TN, nitrate nitrogen (NO3 �-N), soil organic matter (SOM), and ammonium nitrogen (NH4+-N). The structural equation model (SEM) showed that TN was the main factor driving the community composition of Comammox; SOM had a greatest effect on the community composition of AOA while NH4+-N had a greatest effect on the community composition of AOB. The soil PNR had a direct effect on the yield. Overall, the findings of this study highlighted that N application was more conducive to the reproduction of soil nitrifying microorganisms while Comammox was the dominant contributor to nitrification under N fertilization regimes in the semi-arid area of Northeast China.
英文关键词	N fertilization gradient Comammox AOA AOB Nitrification contribution rate
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:001070517500001
WOS关键词	AMMONIA-OXIDIZING BACTERIA ; NITROGEN-FERTILIZATION ; NITRIFYING BACTERIA ; ARCHAEA ; ABUNDANCE ; COMMUNITY ; CARBON ; DIVERSITY ; RESPONSES ; DYNAMICS
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402880
推荐引用方式 GB/T 7714	Feng, Xuewan,Wang, Meng,Li, Qian,et al. Comammox dominate soil nitrification under different N fertilization regimes in semi-arid areas of Northeast China[J],2024,193.
APA	Feng, Xuewan.,Wang, Meng.,Li, Qian.,Qin, Yubo.,Sun, Bo.,...&Zhang, Jinjing.(2024).Comammox dominate soil nitrification under different N fertilization regimes in semi-arid areas of Northeast China.APPLIED SOIL ECOLOGY,193.
MLA	Feng, Xuewan,et al."Comammox dominate soil nitrification under different N fertilization regimes in semi-arid areas of Northeast China".APPLIED SOIL ECOLOGY 193(2024).