干旱区生态环境知识资源中心(Arid): Saline and alkaline stresses alter soil properties and composition and structure of gene-based nitrifier and denitrifier communities in a calcareous desert soil

Arid

DOI	10.1186/s12866-021-02313-z
	Saline and alkaline stresses alter soil properties and composition and structure of gene-based nitrifier and denitrifier communities in a calcareous desert soil
	Guo, Jiaxin; Zhou, Yongxue; Guo, Huijuan; Min, Wei
通讯作者	Min, W (corresponding author), Shihezi Univ, Agr Coll, Dept Resources & Environm Sci, Box 425, Shihezi 832003, Xinjiang, Peoples R China.
来源期刊	BMC MICROBIOLOGY
ISSN	1471-2180
出版年	2021
卷号	21 期号:1
英文摘要	Background Saline and alkaline stresses damages the health of soil systems. Meanwhile, little is known about how saline or alkaline stress affects soil nitrifier and denitrifier communities. Therefore, we compared the responses of gene-based nitrifier and denitrifier communities to chloride (CS), sulfate (SS), and alkaline (AS) stresses with those in a no-stress control (CK) in pots with a calcareous desert soil. Results Compared with CK, saline and alkaline stress decreased potential nitrification rate (PNR) and NO3-N; increased pH, salinity, water content, and NH4-N; and decreased copy numbers of amoA-AOA and amoA-AOB genes but increased those of denitrifier nirS and nosZ genes. Copies of nirK increased in SS and AS but decreased in CS. There were more copies of amoA-AOB than of amoA-AOA and of nirS than of nirK or nosZ. Compared with CK, SS and AS decreased operational taxonomic units (OTUs) of amoA-AOB but increased those of nirS and nosZ, whereas CS decreased nirK OTUs but increased those of nosZ. The numbers of OTUs and amoA-AOB genes were greater than those of amoA-AOA. There were positive linear relations between PNR and amoA-AOA and amoA-AOB copies. Compared with CK, the Chao 1 index of amoA-AOA and amoA-AOB decreased in AS, that of nirK increased in CS and SS, but that of nirS and nosZ increased in all treatments. The Shannon index of amoA-AOB decreased but that of nirS increased in CS and SS, whereas the index of nirK decreased in all treatments. Saline and alkaline stress greatly affected the structure of nitrifier and denitrifier communities and decreased potential biomarkers of nirS-type; however, AS increased those of nirK- and nosZ-type, and SS decreased those of nosZ-type. Soil water content, pH, and salinity were important in shaping amoA-AOA and denitrifier communities, whereas soil water and pH were important to amoA-AOB communities. Conclusion These results indicate that the nitrifier and denitrifier communities respond to saline and alkaline stresses conditions. Communities of amoA-AOA and amoA-AOB contribute to nitrification in alluvial gray desert soil, and those of nirS are more important in denitrification than those of nirK or nosZ.
英文关键词	Chloride stress Sulfate stress Alkaline stresses Bacterial community diversity High-throughput sequencing Potential nitrification rate
类型	Article
语种	英语
开放获取类型	gold, Green Submitted, Green Published
收录类别	SCI-E
WOS记录号	WOS:000695828900001
WOS关键词	AMMONIA-OXIDIZING ARCHAEA ; NITROUS-OXIDE EMISSIONS ; NITRIFICATION INHIBITOR ; QUANTITATIVE-ANALYSES ; BACTERIAL DIVERSITY ; ORGANIC AMENDMENT ; N2O EMISSIONS ; ABUNDANCE ; SALT ; WATER
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/2XILL650/362722
作者单位	[Guo, Jiaxin; Zhou, Yongxue; Guo, Huijuan; Min, Wei] Shihezi Univ, Agr Coll, Dept Resources & Environm Sci, Box 425, Shihezi 832003, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	Guo, Jiaxin,Zhou, Yongxue,Guo, Huijuan,et al. Saline and alkaline stresses alter soil properties and composition and structure of gene-based nitrifier and denitrifier communities in a calcareous desert soil[J],2021,21(1).
APA	Guo, Jiaxin,Zhou, Yongxue,Guo, Huijuan,&Min, Wei.(2021).Saline and alkaline stresses alter soil properties and composition and structure of gene-based nitrifier and denitrifier communities in a calcareous desert soil.BMC MICROBIOLOGY,21(1).
MLA	Guo, Jiaxin,et al."Saline and alkaline stresses alter soil properties and composition and structure of gene-based nitrifier and denitrifier communities in a calcareous desert soil".BMC MICROBIOLOGY 21.1(2021).