Diversity patterns of soil microbial communities in the Sophora flavescens rhizosphere in response to continuous monocro
- PDF / 2,572,775 Bytes
- 12 Pages / 595.276 x 790.866 pts Page_size
- 60 Downloads / 188 Views
RESEARCH ARTICLE
Open Access
Diversity patterns of soil microbial communities in the Sophora flavescens rhizosphere in response to continuous monocropping Haiying Lei1†, Ake Liu1†, Qinwen Hou1, Qingsong Zhao1, Jia Guo1 and Zhijun Wang2*
Abstract Background: Continuous monocropping can affect the physicochemical and biological characteristics of cultivated soil. Sophora flavescens is a valuable herbal medicine and sensitive to continuous monocropping. Currently, diversity patterns of soil microbial communities in soil continuous monocropping with S. flavescens have not been extensively elucidated. Results: In this study, comparative 16S rDNA and internal transcribed spacer (ITS) MiSeq sequencing analyses were used to examine the taxonomic community structure and microbial diversity in nonrhizosphere soil (CK) and rhizosphere soils (SCC, TCC, and FCC) sampled from fields that had undergone two, three, and five years of continuous monocropping, respectively. Among the microbial communities, a decreased abundance of Acidobacteria and increased abundances of Proteobacteria and Bacteroidetes were found with the increase in monocropping years of S. flavescens. As the continuous monocropping time increased, the diversity of the bacterial community decreased, but that of fungi increased. Redundancy analysis also showed that among the properties of the rhizosphere soil, the available phosphorus, organic matter, total nitrogen, and sucrase had the greatest impacts on the diversity of the rhizosphere microbial community. Moreover, a biomarker for S. flavescens soil was also identified using the most differentially abundant bacteria and fungi in soil samples. Conclusions: Our study indicates that long-term monocropping exerted great impacts on microbial community distributions and soil physicochemical properties. The relationship between microbial community and physicochemical properties of rhizosphere soil would help clarify the side effects of continuous S. flavescens monocropping. Our study may aid in uncovering the theoretical basis underlying obstacles to continuous monocropping and provide better guidance for crop production. Keywords: Sophora flavescens, Continuous monocropping, Rhizosphere soil, Microbial community, Soil physicochemical property
* Correspondence: [email protected] † Haiying Lei and Ake Liu contributed equally to this work. 2 Department of Chemistry, Changzhi University, Changzhi, Shanxi 046011, P. R. China Full list of author information is available at the end of the article © The Author(s). 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit l
Data Loading...
