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On the origin of eukaryotes and their endomembranes

  1. TitleOn the origin of eukaryotes and their endomembranes
    Author infoMatej Vesteg, Juraj Krajčovič, Libor Ebringer
    Author Vesteg Matej 1982- (34%)
    Co-authors Krajčovič Juraj (33%)
    Ebringer Libor 1931-2015 (33%)
    Source document Rivista di biologia. Vol. 99, no. 3 (2006), pp. 499-520. - Genova : Tilgher-Genova, 2006
    Keywords organely (mitochondrie) - mitochondrions   eukaryoty - eukaryotes - Eukaryota   endomembránový systém - endomembrane system   vírusy - viruses  
    LanguageEnglish
    CountryItaly
    systematics 577
    AnnotationA novel hypothesis for the origin of eukaryotes is presented. It is assumed that the universal ancestor was bounded by two membranes of heterochiral lipid composition. We propose that the pre-karyote (the hypothetical host entity for alpha-proteobacteria), though sharing a common ancestor with Archaea, was bounded by two membranes. The hypothesis suggests that an a-proteo bacterial symbiont was enclosed in the pre-karyote intermembrane space. In this view, the eukaryotic nuclear membrane and endomembrane system arose from the pre-karyote inner membrane while the eukaryotic plasma membrane arose from the pre-karyote outer membrane. The outlined scenario agrees with the view that engulfment of an alpha-proteobacterial cell by a host entity and its transformation to a mitochondrion was the driving force leading to the appearance of the first eukaryotic cell. The hypothesis seems to be consistent with the pre-cell theory, theory of membrane heredity, and the phagocytosis-late scenario.
    URLLink na zdrojový dokument
    Public work category ADC
    No. of Archival Copy37279
    Repercussion category BAUM, David A. A comparison of autogenous theories for the origin of eukaryotic cells. In American journal of botany. ISSN 0002-9122, 2015, vol. 102, no. 12, pp. 1954-1965.
    DELFOSSE, Kathleen - WOZNY, Michael R. - BARTON, Kiah A. - MATHUR, Neeta - GRIFFITHS, Nigel - MATHUR, Jaideep. Plastid envelope-localized proteins exhibit a stochastic spatiotemporal relationship to stromules. In Frontiers in plant science. ISSN 1664-462X, 2018, vol. 9.
    JALASVUORI, Matti - BAMFORD, Jaana K. H. Structural co-evolution of viruses and cells in the primordial world. In Origins of life and evolution of biospheres. ISSN 0169-6149, 2008, vol. 38, no. 2, pp. 165-181.
    TAN, Dun-Xian. Genesis of the nucleus from bacterial sporulation: a simple hypothesis of eukaryotic origin. In Neuroendocrinology letters. ISSN 0172-780X, 2021, vol. 42, no. 2, pp. 113-127.
    Databasexpca - PUBLIKAČNÁ ČINNOSŤ
    ReferencesPERIODIKÁ-Súborný záznam periodika
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Number of the records: 1  

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