PDF(Pubmed)
Abstract：
The benefits of urban green space are socially widely recognized as a direct link between plant-microbe interactions and the maintenance of biodiversity, community stability, and ecosystem functioning. Nevertheless, there is a lack of knowledge about the factors influencing microbial communities in urban green spaces, especially those related to phyllosphere epiphytes and stem epiphytes. In this study, we analyzed the microbial community assembly in leaf and stem bark samples collected from Square, Road, Campus, and Park. Illumina sequecing of 16S amplicons was performed to characterize microbial diversity and composition. The α-diversity was significantly higher in the bark epiphytic community, compared to the phyllosphere. Moreover, urban greenspaces\'type altered the way communities gathered. The main soil and air properties factors of the urban greenhouse (e.g. soil temperature, atmospheric moisture, air temperature) were shaping the characteristics of bacterial communities on the leaf surface and bark epiphytic. In addition, in the co-occurrence network analysis, keystone taxa were not mostly observed in abundant species, which may be necessary to maintain ecosystem functions. Finally, our findings provide a deeper understanding of the ecological dynamics and microbial interactions within plant phyllosphere and stem epiphytes microbiomes.
摘要：
城市绿地的好处被社会广泛认为是植物-微生物相互作用与生物多样性维持之间的直接联系，社区稳定,和生态系统功能。然而，对影响城市绿地微生物群落的因素缺乏了解，特别是与叶球附生植物和茎附生植物有关的。在这项研究中,我们分析了从Square收集的叶和茎树皮样品中的微生物群落组装，路,校园,和公园。进行16S扩增子的Illumina测序以表征微生物多样性和组成。树皮附生群落的α-多样性明显较高,与叶球相比。此外，城市绿地类型改变了社区聚集的方式。城市温室的主要土壤和空气属性因素(如土壤温度、大气湿度,空气温度）塑造了叶片表面和树皮附生细菌群落的特征。此外,在共现网络分析中，主要不是在丰富的物种中观察到的，这可能是维持生态系统功能所必需的。最后,我们的发现为植物叶球和茎附生植物微生物群的生态动力学和微生物相互作用提供了更深入的理解。
