干旱区生态环境知识资源中心(Arid): 陕北沙化区3种主要植物根际土壤细菌多样性与土壤理化性质相关性分析

Arid

	陕北沙化区3种主要植物根际土壤细菌多样性与土壤理化性质相关性分析
其他题名	Analysis of bacteria diversity in the rhizosphere soil of three main plants and its correlation with the soil physical and chemical properties in the desertification area of northern Shaanxi
	罗旦 1; 陈吉祥 1; 程琳 1; 李彦林 1; 王永刚 1; 周永涛 2
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2019
卷号	33 期号:3 页码:151-157
中文摘要	柠条、沙柳和沙蒿是我国陕北生态脆弱区主要固沙植物,为研究其环境适应机制,用高通量测序技术研究了榆林沙化区3种主要固沙植物根际土壤细菌多样性及其与土壤理化性质相关性.发现非根际土壤细菌由22门组成,含量超过1%优势菌门主要为放线菌门(Actinobacteria)、变形菌门(Proteobacteria)、酸杆菌门(Acidobacteria)、厚壁菌门(Firmicutes)、拟杆菌门(Bacteroidetes)、绿弯菌门(Chloroflexi)、芽单胞菌门(Gemmatimonadetes)和浮霉菌门(Planctomycetes),占细菌总数96.07%.柠条、沙柳和沙蒿根际土壤细菌群落分别由25、23和24门组成,含量超过1%优势菌门分别占细菌类群的94.40%、95.42%、95.80%.其中,Thermotogae 、Atribacteria、Lentisphaerae为柠条根际土壤所特有菌门;Caldiserica为沙蒿根际土壤特有菌门;BRC1类群为三种植物根际土壤共有菌门,在非根际土壤中未发现.非根际土壤、柠条、沙柳、沙蒿根际土壤细菌属分别为455、499、461和465.各优势菌门和属所占比例在不同植物根际土壤及其非根际土壤中存在明显差别.土壤细菌群落和主要理化性质存在显著相关性,其中全氮、速效氮、全磷和速效钾是影响土壤细菌丰富度主要因素.
英文摘要	Caragana korshinskii,Salix psammophila and Artemisia selengensis are the main sand - fixing plants in ecologically fragile areas of northern Shaanxi. In order to understand their environmental adaptation mechanism, the bacteria diversities in the rhizosphere soils of the three sand fixing plants in Yulin city and their correlation with soil physical and chemical properties were studied by high - throughput sequencing technology. The non - rhizospheric soil bacteria were found to consist of 22 phyla,and the dominant phyla that are more than 1% of the bacteria accounted for 96.07% of the total number of bacteria,mainly Actinobacteria,Proteobacteria,Acidobacteria, Firmicutes,Bacteroidetes,Chloroflexi,Gemmatimonadetes and Planctomycetes. The results show that the bacteria communities in the rhizosphere soils of C. korshinskii,S. psammophila and A. selengensis are composed of 25,23 and 24 phyla,respectively,and the proportion of dominant bacteria that their contents are more than 1% of total bacteria account for 94.40%,95.42% and 95.80%,respectively. Thermotogae,Atribacteria and Lentisphaerae are the unique phyla in the rhizosphere soils of C. korshinskii. Caldiserica exists only in the rhizosphere soils of A. selengensis. BRC1 belong to the rhizosphere soil of three plants,but are not found in the non rhizosphere soils. The proportion of the dominant phyla and genus are significantly different. There is a significant correlation between the soil bacteria community structure and the main physical and chemical properties. The total nitrogen,available nitrogen,total phosphorus and available potassium are the main factors affecting the soil bacteria richness.
中文关键词	固沙植物 ; 根际土壤 ; 高通量测序 ; 细菌群落 ; 土壤理化性质
英文关键词	sand - fixing plants rhizosphere soil high - throughput sequencing bacteria community diversity physical and chemical properties of soil
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6458012
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239188
作者单位	1.兰州理工大学石油化工学院, 兰州, 甘肃 730050, 中国; 2.中石油北京天然气管道有限公司, 北京 100101, 中国
推荐引用方式 GB/T 7714	罗旦,陈吉祥,程琳,等. 陕北沙化区3种主要植物根际土壤细菌多样性与土壤理化性质相关性分析[J],2019,33(3):151-157.
APA	罗旦,陈吉祥,程琳,李彦林,王永刚,&周永涛.(2019).陕北沙化区3种主要植物根际土壤细菌多样性与土壤理化性质相关性分析.干旱区资源与环境,33(3),151-157.
MLA	罗旦,et al."陕北沙化区3种主要植物根际土壤细菌多样性与土壤理化性质相关性分析".干旱区资源与环境 33.3(2019):151-157.