Flaveria bidentis invasion modifies soil physicochemical properties and increases microorganism community diversity

IF 2.8 3区 农林科学 Q3 ENVIRONMENTAL SCIENCES
Shuaiying Zhang, Jiantao Liu, Haixia Zhao, Qiao Li, Han Zhang, Mengxin Zhao
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引用次数: 0

Abstract

Purpose

The invasive plant Flaveria bidentis (L.) Kuntze, known as the "ecological killer", poses a significant threat to the ecosystem stability due to its strong phenotypic plasticity and high fertility. Previous studies have reported a close relationship between plant invasion and soil microbial communities. This study aimed to gain a deeper understanding of the relationship between the invasion of F. bidentis, the diversity of soil microbial communities, and soil physiochemical properties.

Methods

In this study, we established a common garden experiment by planting F. bidentis and Chenopodium ficifolium Sm. separately and mixed, in Lanfang, China. We analyzed microbial communities in both bulk soil and rhizosphere soil using the high-throughput sequencing technology.

Results

The results showed that F. bidentis invasion significantly increased bacterial and fungal diversities in rhizosphere soil, irrelevant with or without the existence of native plant species. Meanwhile, F. bidentis increased the content of organic matter and ammonium nitrogen (NH4+) in bulk soil and decrease the content of NH4+ in rhizosphere soil. Significant correlations were observed between nitrogen contents or acid phosphatase and specific soil microbial communities.

Conclusions

These results underly that regardless of competition with native plants, the invasion of F. bidentis alters soil physicochemical properties and increases microorganism community diversity. This study establishes a theoretical foundation for further research on the invasion mechanisms of F. bidentis and provides valuable references for other studies about F. bidentis.

Abstract Image

黄花菜入侵改变了土壤理化性质,增加了微生物群落多样性
目的 被称为 "生态杀手 "的入侵植物Flaveria bidentis (L.) Kuntze,由于其表型可塑性强、肥力高,对生态系统的稳定性构成了严重威胁。以往的研究表明,植物入侵与土壤微生物群落之间存在密切关系。本研究旨在更深入地了解双子叶榕入侵、土壤微生物群落多样性和土壤理化性质之间的关系。结果表明,无论是否存在本地植物物种,二叉金花的入侵都显著增加了根圈土壤中细菌和真菌的多样性。同时,双叉穗状花序菌增加了土壤中有机质和铵态氮(NH4+)的含量,降低了根圈土壤中 NH4+的含量。这些结果表明,无论是否与本地植物竞争,双叉蕨入侵都会改变土壤理化性质并增加微生物群落多样性。本研究为进一步研究二叉金线莲的入侵机制奠定了理论基础,并为其他有关二叉金线莲的研究提供了有价值的参考。
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来源期刊
Journal of Soils and Sediments
Journal of Soils and Sediments 环境科学-土壤科学
CiteScore
7.00
自引率
5.60%
发文量
256
审稿时长
3.5 months
期刊介绍: The Journal of Soils and Sediments (JSS) is devoted to soils and sediments; it deals with contaminated, intact and disturbed soils and sediments. JSS explores both the common aspects and the differences between these two environmental compartments. Inter-linkages at the catchment scale and with the Earth’s system (inter-compartment) are an important topic in JSS. The range of research coverage includes the effects of disturbances and contamination; research, strategies and technologies for prediction, prevention, and protection; identification and characterization; treatment, remediation and reuse; risk assessment and management; creation and implementation of quality standards; international regulation and legislation.
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