微生物是陆地生态系统的关键元素,在改善土壤理化性质方面发挥着重要作用,提供植物生长营养,降解有毒和有害化学物质,和生物地球化学循环。不同植物根系分泌物的类型和数量的变化极大地改变了土壤理化性质,并导致多样性的变化。结构,和土壤微生物的功能。对滨海湿地不同植物群落土壤真菌和古菌群落的差异了解不多,以及它们对环境变化的反应机制。在这项研究中,碱蓬沙萨土壤中的真菌和古细菌群落,芦苇,选择了沿海湿地潮间带栖息地的互花米草进行研究。分析了土壤真菌和古细菌的多样性,群落结构,和功能使用高通量ITS和16SrRNA基因测序。研究揭示了三种植物群落根际土壤中真菌和古菌的多样性和群落结构存在显著差异。同时,功能组没有显着差异。SOM,TP,AP,MC,EC和SOM,TN,TP,AP,MC,EC是影响土壤真菌和古细菌群落变化的主要环境决定因素,分别。多样性的变化,群落结构,真菌和古细菌的生态功能可以作为表征外部干扰对土壤环境影响的指标,为土壤微生物资源的有效利用提供理论依据,从而实现环境保护和健康促进的目标。
Microorganisms are crucial elements of terrestrial ecosystems, which play significant roles in improving soil physicochemical properties, providing plant growth nutrients, degrading toxic and harmful chemicals, and biogeochemical cycling. Variations in the types and quantities of root exudates among different plants greatly alter soil physicochemical properties and result in variations in the diversity, structure, and function of soil microorganisms. Not much is understood about the differences of soil fungi and archaea communities for different plant communities in coastal wetlands, and their response mechanisms to environmental changes. In this study, fungal and archaea communities in soils of Suaeda salsa, Phragmites australis, and Spartina alterniflora in the intertidal habitat of coastal wetlands were selected for research. Soil fungi and archaea were analyzed for diversity, community structure, and function using high throughput ITS and 16S rRNA gene sequencing. The study revealed significant differences in fungi and archaea\'s diversity and community structure in the rhizosphere soil of three plant communities. At the same time, there is no significant difference in the functional groups. SOM, TP, AP, MC, EC and SOM, TN, TP, AP, MC, EC are the primary environmental determinants affecting changes in soil fungal and archaeal communities, respectively. Variations in the diversity, community structure, and ecological functions of fungi and archaea can be used as indicators characterizing the impact of external disturbances on the soil environment, providing a theoretical foundation for the effective utilization of soil microbial resources, thereby achieving the goal of environmental protection and health promotion.