Expanding magnetic organelle biogenesis in the domain Bacteria
文献类型：期刊论文
| 作者 | ,2,3,7; ,2,3,7,8; ,5; ,6; ,4; ,6; ,1; ,4; ,2,3,7,8 |
| 刊名 | Microbiome
 |
| 出版日期 | 2020-10-30 |
| 卷号 | 8期号:1 |
| 关键词 | Magnetotactic bacteria Magnetosome Magnetotaxis Prokaryotic organelle Last bacterial common ancestor |
| DOI | 10.1186/s40168-020-00931-9 |
| 英文摘要 | AbstractBackgroundThe discovery of membrane-enclosed, metabolically functional organelles in Bacteria has transformed our understanding of the subcellular complexity of prokaryotic cells. Biomineralization of magnetic nanoparticles within magnetosomes by magnetotactic bacteria (MTB) is a fascinating example of prokaryotic organelles. Magnetosomes, as nano-sized magnetic sensors in MTB, facilitate cell navigation along the local geomagnetic field, a behaviour referred to as magnetotaxis or microbial magnetoreception. Recent discovery of novel MTB outside the traditionally recognized taxonomic lineages suggests that MTB diversity across the domain Bacteria are considerably underestimated, which limits understanding of the taxonomic distribution and evolutionary origin of magnetosome organelle biogenesis.ResultsHere, we perform the most comprehensive metagenomic analysis available of MTB communities and reconstruct metagenome-assembled MTB genomes from diverse ecosystems. Discovery of MTB in acidic peatland soils suggests widespread MTB occurrence in waterlogged soils in addition to subaqueous sediments and water bodies. A total of 168 MTB draft genomes have been reconstructed, which represent nearly a 3-fold increase over the number currently available and more than double the known MTB species at the genome level. Phylogenomic analysis reveals that these genomes belong to 13 Bacterial phyla, six of which were previously not known to include MTB. These findings indicate a much wider taxonomic distribution of magnetosome organelle biogenesis across the domain Bacteria than previously thought. Comparative genome analysis reveals a vast diversity of magnetosome gene clusters involved in magnetosomal biogenesis in terms of gene content and synteny residing in distinct taxonomic lineages. Phylogenetic analyses of core magnetosome proteins in this largest available and taxonomically diverse dataset support an unexpectedly early evolutionary origin of magnetosome biomineralization, likely ancestral to the origin of the domain Bacteria.ConclusionsThese findings expand the taxonomic and phylogenetic diversity of MTB across the domain Bacteria and shed new light on the origin and evolution of microbial magnetoreception. Potential biogenesis of the magnetosome organelle in the close descendants of the last bacterial common ancestor has important implications for our understanding of the evolutionary history of bacterial cellular complexity and emphasizes the biological significance of the magnetosome organelle.AvdtuUL8bNKQaZ224H3AxpVideo Abstract |
| 语种 | 英语 |
| WOS记录号 | BMC:10.1186/S40168-020-00931-9 |
| 出版者 | BioMed Central |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/98205]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | ,; , |
| 作者单位 | 1.University of Nevada at Las Vegas; School of Life Sciences 2.Chinese Academy of Sciences; Innovation Academy for Earth Science 3.Chinese Academy of Sciences; France-China Joint Laboratory for Evolution and Development of Magnetotactic Multicellular Organisms 4.Australian National University; Research School of Earth Sciences 5.University of Liverpool; Department of Earth, Ocean and Ecological Sciences 6.University of California San Diego; Department of Pediatrics 7.Chinese Academy of Sciences; Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics 8.University of Chinese Academy of Sciences; College of Earth and Planetary Sciences |
| 推荐引用方式 GB/T 7714 | ,,,,,,et al. Expanding magnetic organelle biogenesis in the domain Bacteria[J]. Microbiome,2020,8(1). |
| APA | ,.,,.,,.,,.,,.,...&,.(2020).Expanding magnetic organelle biogenesis in the domain Bacteria.Microbiome,8(1). |
| MLA | ,,et al."Expanding magnetic organelle biogenesis in the domain Bacteria".Microbiome 8.1(2020). |
入库方式： OAI收割
来源：地质与地球物理研究所
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