The prevalence and abundance of Acidobacteriota raise concerns about their ecological function and metabolic activity in the environment. Studies have reported the potential of some members of Acidobacteriota to interact with plants and play a significant role in biogeochemical cycles. However, their role in this context has not been extensively studied. Here, we performed a comprehensive genomic analysis of 758 metagenome-assembled genomes (MAGs). Our analysis revealed a high frequency of plant growth-promoting traits (PGPTs) genes in the , , and families. The colonization and competitive exclusion classes of PGPTs were found to be present in numerous Acidobacteriota members. In addition, these PGPTs also include genes involved in nitrogen fixation, phosphorus solubilization, exopolysaccharide production, siderophore production, and plant growth hormone production. Expression of such genes was found to be transcriptionally active in different environments. In addition, we identified numerous carbohydrate-active enzymes and peptidases involved in plant polymer degradation. By applying an in-depth insight into the diversity of the phylum, we expand the understanding of the role played by Acidobacteriota in the cycling of carbon, nitrogen, sulfur, and trace metals. Together, this study underscores the distinct potential ecological roles of each of these taxonomic groups, providing valuable insights for future research.

中文翻译：

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深入了解全球广泛分布的酸杆菌门的植物相互作用和生物地球化学作用

酸杆菌的流行和丰富引起了人们对其在环境中的生态功能和代谢活动的担忧。研究报告了酸杆菌门的一些成员与植物相互作用并在生物地球化学循环中发挥重要作用的潜力。然而，它们在这方面的作用尚未得到广泛研究。在这里，我们对 758 个宏基因组组装基因组 (MAG) 进行了全面的基因组分析。我们的分析揭示了 、 和 科中植物生长促进性状（PGPT）基因的高频率。发现 PGPT 的定植和竞争排斥类别存在于许多酸杆菌门成员中。此外，这些PGPT还包括参与固氮、解磷、胞外多糖产生、铁载体产生和植物生长激素产生的基因。发现这些基因的表达在不同环境中具有转录活性。此外，我们还发现了许多参与植物聚合物降解的碳水化合物活性酶和肽酶。通过深入了解门的多样性，我们加深了对酸杆菌门在碳、氮、硫和微量金属循环中所发挥作用的理解。总之，这项研究强调了每个分类群的独特潜在生态作用，为未来的研究提供了宝贵的见解。