Tian Wen, Wang Hongmei, Xiang Xing, Wang Ruicheng, Xu Ying
State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, China.
Laboratory of Basin Hydrology and Wetland Eco-Restoration, China University of Geosciences, Wuhan, China.
Front Microbiol. 2019 Jul 24;10:1661. doi: 10.3389/fmicb.2019.01661. eCollection 2019.
microbiomes play an important role in the northern peatland ecosystems. However, information about above and belowground microbiomes related to at subtropical area remains largely limited. In this study, microbial communities from peat, green part, and brown part at the Dajiuhu Peatland, in central China were investigated via 16S rRNA gene amplicon sequencing. Results indicated that Alphaproteobacteria was the dominant class in all samples, and the classes Acidobacteria and Gammaproteobacteria were abundant in peat and brown part samples, respectively. In contrast, the class Cyanobacteria dominated in green part samples. Microhabitat differentiation mainly contributes to structural differences of bacterial microbiome. In the peat, microbial communities were significantly shaped by water table and total nitrogen content. Our study is a systematical investigation on above and belowground bacterial microbiome in a subalpine peatland and the results offer new knowledge about the distribution of bacterial microbiome associated with different microhabitats in subtropical area.
微生物群落对北方泥炭地生态系统起着重要作用。然而，关于亚热带地区地上和地下微生物群落的信息仍然非常有限。在本研究中，通过16S rRNA基因扩增子测序，对中国中部大九湖泥炭地的泥炭、绿色部分和棕色部分的微生物群落进行了调查。结果表明，α-变形菌纲是所有样本中的优势纲，酸杆菌纲和γ-变形菌纲分别在泥炭和棕色部分样本中大量存在。相比之下，蓝细菌纲在绿色部分样本中占主导地位。微生境分化主要导致细菌微生物群落的结构差异。在泥炭中，微生物群落受地下水位和总氮含量的显著影响。我们的研究是对亚高山泥炭地地上和地下细菌微生物群落的系统调查，研究结果为亚热带地区不同微生境相关细菌微生物群落的分布提供了新知识。
