干旱区生态环境知识资源中心(Arid): The Responses to Long-Term Water Addition of Soil Bacterial, Archaeal, and Fungal Communities in a Desert Ecosystem

Arid

DOI	10.3390/microorganisms9050981
	The Responses to Long-Term Water Addition of Soil Bacterial, Archaeal, and Fungal Communities in a Desert Ecosystem
	Gao, Ying; Xu, Xiaotian; Ding, Junjun; Bao, Fang; De Costa, Yashika G.; Zhuang, Weiqin; Wu, Bo
通讯作者	Gao, Y ; Wu, B (corresponding author), Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100091, Peoples R China.
来源期刊	MICROORGANISMS
EISSN	2076-2607
出版年	2021
卷号	9 期号:5
英文摘要	The response of microbial communities to continual and prolonged water exposure provides useful insight when facing global climate changes that cause increased and uneven precipitation and extreme rainfall events. In this study, we investigated an in situ manipulative experiment with four levels of water exposure (ambient precipitation +0%, +25%, +50%, and +100% of local annual mean precipitation) in a desert ecosystem of China. After 9 years of water addition, Illumina sequencing was used to analyze taxonomic compositions of the soil bacterial, archaeal, and fungal communities. The results showed significant increases in microbial biomass carbon (MBC) at higher amended precipitation levels, with the highest values reported at 100% precipitation. Furthermore, an increase in the bacterial species richness was observed along the water addition gradient. In addition, the relative abundance of several bacterial phyla, such as Proteobacteria, significantly increased, whereas that of some drought-tolerant taxa, including Actinobacteria, Firmicutes, and Bacteroidetes, decreased. In addition, the phyla Planctomycetes and Nitrospirae, associated with nitrification, positively responded to increased precipitation. Archaeal diversity significantly reduced under 100% treatment, with changes in the relative abundance of Thaumarchaeota and Euryarchaeota being the main contributors to shifts in the archaeal community. The fungal community composition was stable in response to water addition. Results from the Mantel test and structural equation models suggested that bacterial and archaeal communities reacted contrastingly to water addition. Bacterial community composition was directly affected by changing soil moisture and temperature, while archaeal community composition was indirectly affected by changing nitrogen availability. These findings highlight the importance of soil moisture and nitrogen in driving microbial responses to long-term precipitation changes in the desert ecosystem.
英文关键词	global climate change water addition Illumina sequencing desert microbial community
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000662413700001
WOS关键词	MICROBIAL COMMUNITY ; ALTERED PRECIPITATION ; NITROGEN ADDITION ; DRIVES RESPONSES ; DIVERSITY ; BIOMASS ; PULSES ; CRUSTS ; VEGETATION ; INCREASE
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/2XILL650/351147
作者单位	[Gao, Ying; Xu, Xiaotian; Bao, Fang; Wu, Bo] Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100091, Peoples R China; [Xu, Xiaotian] Beijing Acad Forestry & Pomol Sci, Beijing 100093, Peoples R China; [Ding, Junjun] Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Dryland Agr, Minist Agr, Beijing 100081, Peoples R China; [De Costa, Yashika G.; Zhuang, Weiqin] Univ Auckland, Dept Civil & Environm Engn, Auckland 1023, New Zealand
推荐引用方式 GB/T 7714	Gao, Ying,Xu, Xiaotian,Ding, Junjun,et al. The Responses to Long-Term Water Addition of Soil Bacterial, Archaeal, and Fungal Communities in a Desert Ecosystem[J],2021,9(5).
APA	Gao, Ying.,Xu, Xiaotian.,Ding, Junjun.,Bao, Fang.,De Costa, Yashika G..,...&Wu, Bo.(2021).The Responses to Long-Term Water Addition of Soil Bacterial, Archaeal, and Fungal Communities in a Desert Ecosystem.MICROORGANISMS,9(5).
MLA	Gao, Ying,et al."The Responses to Long-Term Water Addition of Soil Bacterial, Archaeal, and Fungal Communities in a Desert Ecosystem".MICROORGANISMS 9.5(2021).