ArticleArchaea (Vancouver, B.C.)2016
Discovery and Characterization of Iron Sulfide and Polyphosphate Bodies Coexisting in Archaeoglobus fulgidus Cells.
Article in Archaea (Vancouver, B.C.), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 17 citations in OpenAlex.
- Subcellular chemical mapping using correlated cryogenic electron and mass spectrometry imaging.Nature methods · 2026Article
- PolyP inhibits CobB deacetylase triggering a regulatory coupling to prevent DNA replication initiation.Nucleic acids research · 2026Article
- The Protein Scaffolding Functions of Polyphosphate.Journal of molecular biology · 2024Review
- Ultrastructural insights into cellular organization, energy storage and ribosomal dynamics of an ammonia-oxidizing archaeon from oligotrophic oceans.Frontiers in microbiology · 2024Article
- Precipitation of greigite and pyrite induced by Thermococcales: an advantage to live in Fe- and S-rich environments?Environmental microbiology · 2022Article
- A novel methoxydotrophic metabolism discovered in the hyperthermophilic archaeon Archaeoglobus fulgidus.Environmental microbiology · 2021Article
- The potential for polyphosphate metabolism in Archaea and anaerobic polyphosphate formation in Methanosarcina mazei.Scientific reports · 2019Article
- Bioinformatics Analysis of Metabolism Pathways of Archaeal Energy Reserves.Scientific reports · 2019Article
- Marine ArchaeonFrontiers in microbiology · 2019Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
Abstract
Inorganic storage granules have long been recognized in bacterial and eukaryotic cells but were only recently identified in archaeal cells. Here, we report the cellular organization and chemical compositions of storage granules in the Euryarchaeon, Archaeoglobus fulgidus strain VC16, a hyperthermophilic, anaerobic, and sulfate-reducing microorganism. Dense granules were apparent in A. fulgidus cells imaged by cryo electron microscopy (cryoEM) but not so by negative stain electron microscopy. Cryo electron tomography (cryoET) revealed that each cell contains one to several dense granules located near the cell membrane. Energy dispersive X-ray (EDX) spectroscopy and scanning transmission electron microscopy (STEM) show that, surprisingly, each cell contains not just one but often two types of granules with different elemental compositions. One type, named iron sulfide body (ISB), is composed mainly of the elements iron and sulfur plus copper; and the other one, called polyphosphate body (PPB), is composed of phosphorus and oxygen plus magnesium, calcium, and aluminum. PPBs are likely used for energy storage and/or metal sequestration/detoxification. ISBs could result from the reduction of sulfate to sulfide via anaerobic energy harvesting pathways and may be associated with energy and/or metal storage or detoxification. The exceptional ability of these archaeal cells to sequester different elements may have novel bioengineering applications.
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Registered trials
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