Cell compartmentalisation in planctomycetes: novel types of structural organisation for the bacterial cell

@article{Lindsay2001CellCI,
  title={Cell compartmentalisation in planctomycetes: novel types of structural organisation for the bacterial cell},
  author={Margaret R. Lindsay and Richard I. Webb and Marc Strous and Mike S. M. Jetten and Margaret K. Butler and Rebecca J. Forde and John A Fuerst},
  journal={Archives of Microbiology},
  year={2001},
  volume={175},
  pages={413-429}
}
Abstract. The organisation of cells of the planctomycete species Pirellula marina, Isosphaera pallida, Gemmata obscuriglobus, Planctomyces maris and "Candidatus Brocadia anammoxidans" was investigated based on ultrastructure derived from thin-sections of cryosubstituted cells, freeze-fracture replicas, and in the case of Gemmata obscuriglobus and Pirellula marina, computer-aided 3-D reconstructions from serial sections of cryosubstituted cells. All planctomycete cells display a peripheral… Expand
Membrane-bounded nucleoids and pirellulosomes of planctomycetes
TLDR
Compartmentalized cells of members of the distinctive phylum Planctomycetes, especially those of Gemmata strains, form an exception to the prokaryote cell plan and have significant implications for models for origins of the eukaryote nucleus. Expand
The cell cycle of the planctomycete Gemmata obscuriglobus with respect to cell compartmentalization
TLDR
The division cycle of the nucleated planctomycete G. obscuriglobus appears to be a complex process in which chromosomal DNA is transported to the daughter cell bud after initial formation of the bud, and this can be performed repeatedly by a single mother cell. Expand
Unique Organelles in Planctomycetes
Bacteria in the phylum Planctomycetes and some related phyla challenge our concept of the typical bacterium as consisting of cells without internal compartments or membrane-bounded organelles. CellsExpand
Intracellular compartmentation in planctomycetes.
  • J. Fuerst
  • Biology, Medicine
  • Annual review of microbiology
  • 2005
TLDR
The phylum Planctomycetes of the domain Bacteria consists of budding, peptidoglycan-less organisms important for understanding the origins of complex cell organization, in which the nucleoid is enveloped in two membranes to form a nuclear body analogous to the structure of a eukaryotic nucleus. Expand
The order Planctomycetales, including the genera Planctomyces, Pirellula, Gemmata and Isosphaera and the Candidatus genera Brocadia, Kuenenia and Scalindua
TLDR
Through the application of molecular microbial ecology techniques over the last 10 years, it has become apparent that planctomycetes are ubiquitous in a wide range of terrestrial and aquatic environments; the physiological diversity underlying this geographic ubiquity has not yet been fully explored. Expand
Genomic Analysis Indicates the Presence of an Asymmetric Bilayer Outer Membrane in Planctomycetes and Verrucomicrobia
TLDR
The functional implications of the presence of an outer membrane for the Planctomycetes cell plan and compartmentalization are discussed and a revised model including anouter membrane is proposed. Expand
Nested Bacterial Boxes: Nuclear and Other Intracellular Compartments in Planctomycetes
TLDR
The nature of these planctomycetes compartments in relation to function and their relationship to the endomembranes defining them are examined, and the implications of the remarkable compartment-confined process of protein uptake in Gemmata are discussed. Expand
Beyond the bacterium: planctomycetes challenge our concepts of microbial structure and function
TLDR
The recent discovery of both an endocytosis-like ability and proteins homologous to eukaryotic clathrin in a planctomycete marks this phylum as one to watch for future research on the origin and evolution of the eUKaryotic cell. Expand
Cell Compartmentalization and Endocytosis in Planctomycetes: Structure and Function in Complex Bacteria
Planctomycetes are unique among the domain Bacteria in possessing cells with a complex plan defined by internal membranes forming separated compartments within the cell. They also possess otherExpand
A New Addition to the Cell Plan of Anammox Bacteria: “Candidatus Kuenenia stuttgartiensis” Has a Protein Surface Layer as the Outermost Layer of the Cell
TLDR
The outermost layer of the anammox cell is investigated and identified a proteinaceous surface layer (S-layer) (a crystalline array of protein subunits) as the outermost component of the cell envelope of theAnammox bacterium "Candidatus Kuenenia stuttgartiensis" and is the first description of an S-layer in the phylum of the Planctomycetes. Expand
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References

SHOWING 1-10 OF 46 REFERENCES
Pirellulosomes: a new type of membrane-bounded cell compartment in planctomycete bacteria of the genus Pirellula.
TLDR
Immuno- and cytochemical-labelling of P. marina demonstrated that DNA is located exclusively within the pirellulosome; cell RNA is concentrated in the pirespecies, with some RNA also located in the polar cap region. Expand
Defensive extrusive ectosymbionts of Euplotidium (Ciliophora) that contain microtubule-like structures are bacteria related to Verrucomicrobia.
TLDR
The prokaryotic vs. eukaryotic nature of epixenosomes was resolved by comparative sequence analysis of amplified small subunit rRNA genes and in situ hybridization with fluorescently labeled rRNA-targeted polynucleotide probes. Expand
The planctomycetes: emerging models for microbial ecology, evolution and cell biology.
The planctomycetes are an unusual but widely distributed group of budding bacteria which are proving to be of increasing relevance to at least three major areas of research in microbiology: microbialExpand
Membrane-bounded nucleoid in the eubacterium Gemmata obscuriglobus.
  • J. Fuerst, R. Webb
  • Biology, Medicine
  • Proceedings of the National Academy of Sciences of the United States of America
  • 1991
TLDR
The occurrence of a membrane-bounded nucleoid in a eubacterial prokaryote is a significant exception to the evidence supporting the proKaryote/eukaryote dichotomous classification of cell structure. Expand
Nucleoids and coated vesicles of “Epulopiscium” spp.
TLDR
Parts of the anatomy of two “Epulopiscium” morphotypes, unusually large bacteria that are not yet cultured and that reproduce by the internal generation of two or more vegetative daughter cells, are described. Expand
Membrane‐bounded nucleoids in microbial symbionts of marine sponges
TLDR
In thin sections of resin-embedded samples of glutaraldehyde- and osmium tetroxide-fixed tissue from five genera of marine sponges, cells of a bacteria-like symbiont microorganism which exhibit a membrane-bounded nuclear region encompassing the fibrillar nucleoid have been observed within the sponge mesohyl. Expand
Molecular genetic evidence for early evolutionary origin of budding peptidoglycan-less eubacteria
TLDR
Comparison of data obtained from three budding, peptidoglycan-less strains with and without stalks revealed that the strains investigated are not members of the archaebacterial kingdom but represent an ancient line of descent of the eubacterial kingdom. Expand
Membrane-bounded nuclear bodies in a diverse range of symbionts of Great Barrier Reef sponges
TLDR
Thin sections of chemically fixed tissue of several sponge species collected from Heron Island, Great Barrier Reef, were examined to investigate the cell organisation of bacteria-like microbial symbionts present, finding a variety of different symbiont morphotypes found to possess a membrane-bounded nucleoid, a feature not expected in prokaryotes. Expand
Isolation and molecular identification of planctomycete bacteria from postlarvae of the giant tiger prawn, Penaeus monodon
TLDR
Bacteria phenotypically resembling members of the phylogenetically distinct planctomycete group of the domain Bacteria were isolated from postlarvae of the giant tiger prawn, Penaeus monodon, and demonstrated that the prawn isolates were members of that group. Expand
16S ribosomal RNA‐ and cell wall analysis of Gemmata obscuriglobus, a new member of the order Planctomycetales
TLDR
Gemmata obscuriglobus UQM2246 was investigated by the 16S ribosomal RNA cataloguing approach in order to determine its phylogenetic position, displaying a remote and equidistant relationship to representatives of the genera Planctomyces and Pirella. Expand
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