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Bacterial Community Structure in Rhizosphere of Barley at Maturity Stage

文献类型: 外文期刊

作者: Zhang, Siyu 1 ; An, Yue 1 ; Zhou, Yu 1 ; Wang, Xiaofang 1 ; Tang, Yiqing 2 ; Zhang, Daorong 2 ; Sun, Genlou 3 ; Wang, Qifei 4 ; Ren, Xifeng 1 ;

作者机构: 1.Huazhong Agr Univ, Coll Plant Sci & Technol, Hubei Hongshan Lab, Wuhan 430070, Peoples R China

2.Xiangyang Acad Agr Sci, Xiangyang 441057, Peoples R China

3.St Marys Univ, Dept Biol, Halifax, NS B3H 3C3, Canada

4.Zhejiang Acad Agr Sci, Inst Crop & Nucl Technol Utilizat, Hangzhou 310021, Peoples R China

关键词: barley; maturity period; rhizosphere; bacterial community; structural characteristics

期刊名称:AGRONOMY-BASEL ( 影响因子:3.7; 五年影响因子:4.0 )

ISSN:

年卷期: 2023 年 13 卷 11 期

页码:

收录情况: SCI

摘要: The crop rhizosphere is the main site of soil microbial activities. Understanding the structure and diversity of microbial communities in the crop rhizosphere will help us reveal interactions between rhizosphere microorganisms and plant growth. In this study, the rhizosphere soil was collected from 35 cultivated barley varieties at the mature stage. To investigate the structure and diversity of bacterial communities in the rhizosphere of different barley varieties, the 16S rDNA gene of microorganisms from the soil was sequenced using Illumina MiSeq next-generation high-throughput sequencing technology. The results showed that 13, 25, 49, and 59 bacterial flora with relative abundance >1% were detected from 35 barley rhizosphere samples at the phylum, class, order, and family levels, respectively. The abundance of bacteria among varieties differed relatively little, but the abundance of the same bacteria in rhizospheres of different varieties was different. In addition, both the cluster analysis and principal component analysis (PCA) divided the 35 samples into three clusters at the phylum level. Groups III and IV showed significantly higher abundance than group II in Proteobacteria, while group II exhibited significantly higher abundance of Chloroflexi than groups III and IV. This finding provides a realistic basis for further using the relationship between barley rhizosphere microorganisms and barley growth to improve the resistance and quality of barley.

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