干旱区生态环境知识资源中心(Arid): The different responses of AOA and AOB communities to irrigation systems in the semi-arid region of Northeast China

Arid

DOI	10.3389/fmicb.2024.1374618
	The different responses of AOA and AOB communities to irrigation systems in the semi-arid region of Northeast China
	Qiang, Ruowen; Wang, Meng; Li, Qian; Li, Yingjie; Li, Cuilan; Zhang, Jinjing; Liu, Hang
通讯作者	Liu, H
来源期刊	FRONTIERS IN MICROBIOLOGY
EISSN	1664-302X
出版年	2024
卷号	15
英文摘要	Ammonia oxidation is the rate-limiting step in nitrification and the key step in the nitrogen (N) cycle. Most soil nutrients and biological indicators are extremely sensitive to irrigation systems, from the perspective of improving soil fertility and soil ecological environment, the evaluation of different irrigation systems and suitability of selection, promote crop production and soil quality, study the influence of the soil microenvironment contribute to accurate evaluation of irrigation farmland soil health. Based on the amoA gene, the abundance and community diversity of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) and their responses to soil physicochemical factors and enzyme activities were studied in semi-arid areas of Northeast China. The study consisted of three irrigation systems: flood irrigation (FP), shallow buried drip irrigation (DI), and mulched drip irrigation (MF). The results showed that DI and MF significantly increased the contents of alkaline hydrolyzed nitrogen (AN), nitrate nitrogen (NO3--N), soil moisture, and the activities of ammonia monooxygenase (AMO) and hydroxylamine oxidase (HAO). Compared with FP, DI significantly increased the abundance of soil AOA and AOB, while MF significantly increased the abundance of soil AOB. Irrigation systems significantly affected the community composition of ammonia-oxidizing microorganisms (AOM). Also, AN and soil moisture had the greatest influence on the community composition of AOA and AOB, respectively. The AOB community had better stability and stress resistance. Moreover, the symbiotic network of AOB in the three irrigation systems was more complex than that of AOA. Compared with FP, the AOA community under treatment DI had higher complexity and stability, maintaining the versatility and sustainability of the ecosystem, while the AOB community under treatment MF had higher transfer efficiency in terms of matter and energy. In conclusion, DI and MF were more conducive to the propagation of soil AOM in the semi-arid area of Northeast China, which can provide a scientific basis for rational irrigation and N regulation from the perspective of microbiology.
英文关键词	mulched drip irrigation AOA AOB community composition symbiotic network
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001227471300001
WOS关键词	AMMONIA-OXIDIZING BACTERIA ; USE EFFICIENCY ; YIELD ; ABUNDANCE ; ARCHAEA ; NITRIFICATION ; DIVERSITY ; SEDIMENTS ; GENES ; PH
WOS类目	Microbiology
WOS研究方向	Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403853
推荐引用方式 GB/T 7714	Qiang, Ruowen,Wang, Meng,Li, Qian,et al. The different responses of AOA and AOB communities to irrigation systems in the semi-arid region of Northeast China[J],2024,15.
APA	Qiang, Ruowen.,Wang, Meng.,Li, Qian.,Li, Yingjie.,Li, Cuilan.,...&Liu, Hang.(2024).The different responses of AOA and AOB communities to irrigation systems in the semi-arid region of Northeast China.FRONTIERS IN MICROBIOLOGY,15.
MLA	Qiang, Ruowen,et al."The different responses of AOA and AOB communities to irrigation systems in the semi-arid region of Northeast China".FRONTIERS IN MICROBIOLOGY 15(2024).