ArticleNature communications2020
Isolation of a member of the candidate phylum 'Atribacteria' reveals a unique cell membrane structure.
Article in Nature communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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39 citing papers in PubMed, 101 citations in OpenAlex.
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- A diverse Palaeoproterozoic microbial ecosystem implies early eukaryogenesis.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
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- Gelling and reducing agents are potential carbon and energy sources in culturing of anaerobic microorganisms.Applied and environmental microbiology · 2025Article
- Terrabacteria: redefining bacterial envelope diversity, biogenesis and evolution.Nature reviews. Microbiology · 2025Review
- A global comparison of surface and subsurface microbiomes reveals large-scale biodiversity gradients, and a marine-terrestrial divide.Science advances · 2024Article
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- The dynamic history of prokaryotic phyla: discovery, diversity and division.International journal of systematic and evolutionary microbiology · 2024Review
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- A Marine Group A isolate relies on other growing bacteria for cell wall formation.Nature microbiology · 2024Article
- An untargeted cultivation approach revealed Pseudogemmatithrix spongiicola gen. nov., sp. nov., and sheds light on the gemmatimonadotal mode of cell division: binary fission.Scientific reports · 2024Article
- Cultivation of novel Atribacterota from oil well provides new insight into their diversity, ecology, and evolution in anoxic, carbon-rich environments.Microbiome · 2024Article
- Global Marine Cold Seep Metagenomes Reveal Diversity of Taxonomy, Metabolic Function, and Natural Products.Genomics, proteomics & bioinformatics · 2024Article
- Microbial assemblages in Arctic coastal thermokarst lakes and lagoons.FEMS microbiology ecology · 2024Article
- Genome-scale metabolic modelling of extremophiles and its applications in astrobiological environments.Environmental microbiology reports · 2024Review
- Comparative single-cell genomics of Atribacterota JS1 in the Japan Trench hadal sedimentary biosphere.mSphere · 2024Article
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9 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A key feature that differentiates prokaryotic cells from eukaryotes is the absence of an intracellular membrane surrounding the chromosomal DNA. Here, we isolate a member of the ubiquitous, yet-to-be-cultivated phylum 'Candidatus Atribacteria' (also known as OP9) that has an intracytoplasmic membrane apparently surrounding the nucleoid. The isolate, RT761, is a subsurface-derived anaerobic bacterium that appears to have three lipid membrane-like layers, as shown by cryo-electron tomography. Our observations are consistent with a classical gram-negative structure with an additional intracytoplasmic membrane. However, further studies are needed to provide conclusive evidence for this unique intracellular structure. The RT761 genome encodes proteins with features that might be related to the complex cellular structure, including: N-terminal extensions in proteins involved in important processes (such as cell-division protein FtsZ); one of the highest percentages of transmembrane proteins among gram-negative bacteria; and predicted Sec-secreted proteins with unique signal peptides. Physiologically, RT761 primarily produces hydrogen for electron disposal during sugar degradation, and co-cultivation with a hydrogen-scavenging methanogen improves growth. We propose RT761 as a new species, Atribacter laminatus gen. nov. sp. nov. and a new phylum, Atribacterota phy. nov.
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