Man Baiying, Xiang Xing, Zhang Junzhong, Cheng Gang, Zhang Chao, Luo Yang, Qin Yangmin
College of Life Science, Shangrao Normal University, Shangrao 334001, China.
Key Laboratory of Forest Disaster Warning and Control in Yunnan Higher Education Institutions, South West Forestry University, Kunming 650224, China.
Biology (Basel). 2022 Sep 30;11(10):1436. doi: 10.3390/biology11101436.
is a fundamental ecosystem of engineers, including more than 300 species around the world. These species host diverse microbes, either endosymbiotic or ectosymbiotic, and are key to carbon sequestration in peatland ecosystems. However, the linkages between different types of and the diversity and ecological functions of -associated microbiomes are poorly known, and so are their joint responses to ecological functions. Here, we systematically investigated endophytes in via next-generation sequencing (NGS) techniques in the Erxianyan peatland, central China. The total bacterial microbiome was classified into 38 phyla and 55 classes, 122 orders and 490 genera. The top 8 phyla of Proteobacteria (33.69%), Firmicutes (11.94%), Bacteroidetes (9.42%), Actinobacteria (6.53%), Planctomycetes (6.37%), Gemmatimonadetes (3.05%), Acidobacteria (5.59%) and Cyanobacteria (1.71%) occupied 78.31% of total OTUs. The core microbiome of was mainly distributed mainly in 7 phyla, 9 classes, 15 orders, 22 families and 43 known genera. There were many differences in core microbiomes compared to those in the common higher plants. We further demonstrate that the abundant functional groups have a substantial potential for nitrogen fixation, carbon cycle, nitrate metabolism, sulfate respiration and chitinolysis. These results indicate that potential ecological function of in peatlands is partially rooted in its microbiomes, and that incorporating into functional groups of -associated microbiomes can promote mechanistic understanding of ecology in subalpine peatlands.
是一个由工程师组成的基本生态系统，全球有300多个物种。这些物种拥有多样的微生物，包括内共生或外共生微生物，是泥炭地生态系统中碳固存的关键。然而，不同类型的与相关微生物群落的多样性和生态功能之间的联系鲜为人知，它们对生态功能的联合反应也是如此。在这里，我们通过下一代测序（NGS）技术在中国中部二仙岩泥炭地系统地研究了中的内生菌。总细菌微生物群落被分类为38个门、55个纲、122个目和490个属。变形菌门（33.69%）、厚壁菌门（11.94%）、拟杆菌门（9.42%）、放线菌门（6.53%）、浮霉菌门（6.37%）、芽单胞菌门（3.05%）、酸杆菌门（5.59%）和蓝细菌门（1.71%）的前8个门占总OTU的78.31%。的核心微生物群落主要分布在7个门、9个纲、15个目、22个科和43个已知属中。与常见高等植物相比，核心微生物群落存在许多差异。我们进一步证明，丰富的功能群具有固氮、碳循环、硝酸盐代谢、硫酸盐呼吸和几丁质分解的巨大潜力。这些结果表明，泥炭地中潜在的生态功能部分源于其微生物群落，将纳入相关微生物群落的功能群可以促进对亚高山泥炭地生态的机制理解。
