Key Lab of Marine Bioactive Substances of SOA, The First Institute of Oceanography, Qingdao, China.
Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
PLoS One. 2018 Dec 17;13(12):e0208230. doi: 10.1371/journal.pone.0208230. eCollection 2018.
Studies about the composition and diversity of microbial community in the Rare Earth Elements-rich muds are limited. In this research, we conducted a characterization for the composition and diversity of bacterial and archaeal communities from rare earth elements-rich gravity core sediment at approximately 4800 meters deep in the Indian Ocean by Illumina high-throughput sequencing targeting 16S rRNA genes. The results showed that the most abundant bacteria were Proteobacteria, followed by Firmicutes and Actinobacteria. Amongst Proteobacteria, Gammaproteobacteria are present in all sections of this sediment core accounted for a particularly large proportion of bacterial sequences. Candidatus Nitrosopumilus, with a higher relative abundance in our samples, belongs to Thaumarchaeota. This is the first report on the composition and diversity of rare earth elements-rich muds microbial communities in the Indian Ocean deep sea.
关于富稀土元素泥浆中微生物群落的组成和多样性的研究还很有限。在这项研究中，我们通过针对 16S rRNA 基因的 Illumina 高通量测序，对印度洋约 4800 米深处富稀土元素重力芯沉积物中的细菌和古菌群落的组成和多样性进行了表征。结果表明，最丰富的细菌门为变形菌门，其次为厚壁菌门和放线菌门。在变形菌门中，γ-变形菌门存在于该沉积物芯的所有部分，占细菌序列的比例特别大。在我们的样本中相对丰度较高的疑似硝化螺旋菌属于泉古菌门。这是关于印度洋深海富稀土元素泥浆微生物群落组成和多样性的首次报道。
