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<p>Bacterial communities play an important role in nutrient cycling in riverine wetland ecosystems, and the study of rhizosphere microbial community composition of different plants is of great scientific significance in revealing the relationship between microorganisms and plant interactions in riverine wetlands. In this study, samples were collected from four plant congeries dominated by <i>Artemisia argyi</i> (AH), <i>Acorus calamus</i> (CP), <i>Miscanthus sacchariflorus</i> (DC), and <i>Paspalum distichum</i> (QB), respectively. High-throughput sequencing technology was employed to investigate the rhizosphere microbial community structures associated with these distinct plant species. The results showed that soil water content could effectively regulate the functional diversity of soil microbial communities. Different plant congeries types significantly affected soil bacterial community diversity, and at the phylum level, both Proteobacteria and Acidobacteria were absolutely dominant groups, followed by Bacteroidetes. At the genus level, <i>Flavobacterium</i>, <i>Sphingomonas</i>, <i>Gp6</i> and <i>Gp4</i> were the dominant bacteria in the rhizosphere soil of plants along the river. Soil pH, water content, NO<sub>3</sub>-N, NO<sub>2</sub>-N and TOC were the main factors affecting the composition of microbial communities. This study broadens our understanding of the composition of rhizosphere microbial communities in the river buffer zone, and provide data support for river ecological environment protection.</p>

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Comparison of microbial community structures in rhizosphere soils of different plants in riverine wetland

  • 期刊论文

  • 发表日期：

    2025年7月5日

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  • Jiaying Zhao,
  • Biao Liu,
  • Yiran Hou,
  • Liujie Zheng,
  • Xixi Kong,
  • Changrui Zhou,
  • Junfeng Wu,
  • Xiang Guo,
  • Yimei Ying

摘要

Bacterial communities play an important role in nutrient cycling in riverine wetland ecosystems, and the study of rhizosphere microbial community composition of different plants is of great scientific significance in revealing the relationship between microorganisms and plant interactions in riverine wetlands. In this study, samples were collected from four plant congeries dominated by Artemisia argyi (AH), Acorus calamus (CP), Miscanthus sacchariflorus (DC), and Paspalum distichum (QB), respectively. High-throughput sequencing technology was employed to investigate the rhizosphere microbial community structures associated with these distinct plant species. The results showed that soil water content could effectively regulate the functional diversity of soil microbial communities. Different plant congeries types significantly affected soil bacterial community diversity, and at the phylum level, both Proteobacteria and Acidobacteria were absolutely dominant groups, followed by Bacteroidetes. At the genus level, Flavobacterium, Sphingomonas, Gp6 and Gp4 were the dominant bacteria in the rhizosphere soil of plants along the river. Soil pH, water content, NO3-N, NO2-N and TOC were the main factors affecting the composition of microbial communities. This study broadens our understanding of the composition of rhizosphere microbial communities in the river buffer zone, and provide data support for river ecological environment protection.