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Background <p>Rhizosphere microorganisms are a key factor on the growth and health of the host plant. Plant invasion, global warming and nitrogen (N) deposition have posed serious threats to native plants, but it is still unclear how these global factors influence the rhizosphere microorganisms of the native plants.</p> Methods <p>In the present research, we studied how <i>Solidago canadensis</i> invasion, rising temperature and N deposition separately and in pairs (invasion + rising temperature, invasion + N deposition) affect the rhizosphere bacterial community of a native plant <i>Artemisia argyi</i> in China through a controlled experiment in a greenhouse.</p> Results <p>Rising temperature and adding N separately reduced the rhizosphere bacterial richness of <i>A. argyi</i> (<i>p</i> &lt; 0.05). The rhizosphere bacterial community structure of <i>A. argyi</i> was considerably altered by the invasion of <i>S. canadensis</i> at 50% degree compared to the non-invasion, irrespective of increasing temperature or N (<i>p</i> &lt; 0.05). Moreover, the altered bacterial structure in <i>A. argyi</i> rhizosphere was strikingly similar to that in <i>S. canadensis</i> rhizosphere. <i>S. canadensis</i> might benefit from this alteration and relatively enhances its invasion because <i>A. argyi</i> needs to adapt to the new microbial community while <i>S. canadensis</i> does not.</p> Conclusion <p>This study demonstrated that <i>S. canadensis</i> invasion reshapes the bacterial community structures in the rhizospheres of the invaded plant referring to its own rhizosphere, which could probably facilitate its invasion.</p>

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Solidago canadensis alters rhizosphere bacterial communities of Artemisia argyi under warming and nitrogen deposition—invaded rhizospheres become similar to the invader's

  • 期刊论文

  • 发表日期：

    2026年2月10日

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  • Yong-Feng Wang,
  • Yun-Long Zhang,
  • Ying Li,
  • Guang-Qian Ren,
  • Shan-Shan Qi,
  • Bi-Ying Zhao,
  • Zhi-Cong Dai,
  • Dao-Lin Du

摘要

Background

Rhizosphere microorganisms are a key factor on the growth and health of the host plant. Plant invasion, global warming and nitrogen (N) deposition have posed serious threats to native plants, but it is still unclear how these global factors influence the rhizosphere microorganisms of the native plants.

Methods

In the present research, we studied how Solidago canadensis invasion, rising temperature and N deposition separately and in pairs (invasion + rising temperature, invasion + N deposition) affect the rhizosphere bacterial community of a native plant Artemisia argyi in China through a controlled experiment in a greenhouse.

Results

Rising temperature and adding N separately reduced the rhizosphere bacterial richness of A. argyi (p < 0.05). The rhizosphere bacterial community structure of A. argyi was considerably altered by the invasion of S. canadensis at 50% degree compared to the non-invasion, irrespective of increasing temperature or N (p < 0.05). Moreover, the altered bacterial structure in A. argyi rhizosphere was strikingly similar to that in S. canadensis rhizosphere. S. canadensis might benefit from this alteration and relatively enhances its invasion because A. argyi needs to adapt to the new microbial community while S. canadensis does not.

Conclusion

This study demonstrated that S. canadensis invasion reshapes the bacterial community structures in the rhizospheres of the invaded plant referring to its own rhizosphere, which could probably facilitate its invasion.