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-Structure paper
Title | Three-dimensional reconstruction of bacteria with a complex endomembrane system. |
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Journal, issue, pages | PLoS Biol, Vol. 11, Issue 5, Page e1001565, Year 2013 |
Publish date | May 21, 2013 |
Authors | Rachel Santarella-Mellwig / Sabine Pruggnaller / Norbert Roos / Iain W Mattaj / Damien P Devos / |
PubMed Abstract | The division of cellular space into functionally distinct membrane-defined compartments has been one of the major transitions in the history of life. Such compartmentalization has been claimed to ...The division of cellular space into functionally distinct membrane-defined compartments has been one of the major transitions in the history of life. Such compartmentalization has been claimed to occur in members of the Planctomycetes, Verrucomicrobiae, and Chlamydiae bacterial superphylum. Here we have investigated the three-dimensional organization of the complex endomembrane system in the planctomycete bacteria Gemmata obscuriglobus. We reveal that the G. obscuriglobus cells are neither compartmentalized nor nucleated as none of the spaces created by the membrane invaginations are closed; instead, they are all interconnected. Thus, the membrane organization of G. obscuriglobus, and most likely all PVC members, is not different from, but an extension of, the "classical" Gram-negative bacterial membrane system. Our results have implications for our definition and understanding of bacterial cell organization, the genesis of complex structure, and the origin of the eukaryotic endomembrane system. |
External links | PLoS Biol / PubMed:23700385 / PubMed Central |
Methods | EM (tomography) |
Structure data | EMDB-2362: EMDB-2363: |
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