Evolution and Diversity of Zooflagellates<sup>1</sup>

CAVALIER‐SMITH, THOMAS

doi:10.1111/j.1550-7408.1993.tb06115.x

Cited by 7 publications

(2 citation statements)

References 14 publications

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“…Because of the profound significance of these differences, we believe the kingdom of Archezoa would be divided into two kingdoms: Proarchezoa (incIuding diplomonads) and Archezoa (including all other archezoa). Both kingdoms belong to the Superkingdom Archezoa (Cavalier-Smith, 1989), which, according to him, had only one kingdom under this superkingdom [16]. It must have been a large anaerobic organism with a size similar to protozoan cells.…”

Section: (D) Nuclear Division Without Spindle Formationmentioning

confidence: 99%

Characterization of Giardia cell nucleus: Its implication on the nature and origin of the primitive cell nucleus

1995

Cell Res

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The central problem of the origin and early evolution of the eukaryotic cell is the origin of the cell nucleus, because the cell nucleus, with its double-layered nuclear envelope, is the most prominent and important morphological mark distinguishing eukaryotic cells from prokaryotes. Eukaryotic cells may have no chloroplast, mitochondria or flagellum, but they must possess a cell nucleus.The cell nucleus itself is a very complicated structure. If we try to make clear the origin and early evolution of the cell nucleus, we ought to investigate the origin and evolution of each morphological component of a cell nucleus. My monograph on 'The genesis of eukaryotic cells in the evolutionary history of life '(1979, Science Press, Beijing, in Chinese)[1], mainly attempted to make some effort in this regard. However, to date, the hypothetical model of a fully depicted nucleus of a primitive cell has not been constructed. It seems likely that our recent studies of the nucleus of Giardia (diplomonad) have provided a realistic basis to construct such a model.

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Section: (D) Nuclear Division Without Spindle Formationmentioning

confidence: 99%

Characterization of Giardia cell nucleus: Its implication on the nature and origin of the primitive cell nucleus

1995

Cell Res

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“…Trichomonads and metamonads (e.g., Giardia) are thought to form two of the earliest branches o the eukaryotic tree of life (Brugerolle 1993;Cavalier-Smith 1993), though much recent evidence has amassed to suggest that their basal placement is arti®cial (Biagini and Bernard 2000;Morin 2000;Roger 1999). The current view of early eukaryotic evolution has been confounded by the discovery of mitochondrial genes in both diplomonads and trichomonads, as well as the questionable accuracy of the small subunit ribosomal RNA phylogenetic tree (Morin 2000;Roger 1999).…”

Section: Introductionmentioning

confidence: 99%

Post-translational glutamylation and tyrosination in tubulin of tritrichomonads and the diplomonad Giardia intestinalis

2002

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Glutamylated and tyrosinated tubulin were localized in Giardia intestinalis and selected trichomonads of the Tritrichomonadinae subfamily, using speci®c monoclonal antibodies directed at each of the posttranslational modi®cations. Analysis was carried out using indirect immuno¯uorescence microscopy. Although trichomonad tubulins remained unlabeled by anti-tyrosine tubulin (TUB-1A2), the presence of the glutamylation motif (GT 335) was con®rmed and found to dier in distribution among tritrichomonads. Tritrichomonas muris was most heavily labeled with GT 335, while T. foetus was the least so. Like trichomonads, Giardia was unreactive to anti-tyrosine tubulin; however, the GT 335 antibody produced marked¯uorescence in Giardia trophozoites. This study is the ®rst to report immuno¯uorescent localization of tubulin glutamylation in Giardia and con®rms previously reported mass spectrometry data.

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Sarcomonad ribosomal RNA sequences, rhizopod phylogeny, and the origin of euglyphid amoebae

Cavalier‐Smith

Chad

1997

Archiv für Protistenkunde

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Evolution and Diversity of Zooflagellates¹

Cited by 7 publications

References 14 publications

Characterization of Giardia cell nucleus: Its implication on the nature and origin of the primitive cell nucleus

Characterization of Giardia cell nucleus: Its implication on the nature and origin of the primitive cell nucleus

Post-translational glutamylation and tyrosination in tubulin of tritrichomonads and the diplomonad Giardia intestinalis

Sarcomonad ribosomal RNA sequences, rhizopod phylogeny, and the origin of euglyphid amoebae

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Evolution and Diversity of Zooflagellates1

Cited by 7 publications

References 14 publications

Characterization of Giardia cell nucleus: Its implication on the nature and origin of the primitive cell nucleus

Characterization of Giardia cell nucleus: Its implication on the nature and origin of the primitive cell nucleus

Post-translational glutamylation and tyrosination in tubulin of tritrichomonads and the diplomonad Giardia intestinalis

Sarcomonad ribosomal RNA sequences, rhizopod phylogeny, and the origin of euglyphid amoebae

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Evolution and Diversity of Zooflagellates¹