Ultrastructure of Trimastix convexa hollande, an amitochondriate anaerobic flagellate with a previously undescribed organization

  title={Ultrastructure of Trimastix convexa hollande, an amitochondriate anaerobic flagellate with a previously undescribed organization},
  author={Guy Brugerolle and David J. Patterson},
  journal={European Journal of Protistology},
How Oxymonads Lost Their Groove: An Ultrastructural Comparison of Monocercomonoides and Excavate Taxa
It is concluded that oxymonads have an excavate ancestry, and that the ‘excavate taxa’ sensu stricto form a paraphyletic assemblage.
Symbiotic Innovation in the Oxymonad Streblomastix strix
The ultrastructure of S. strix is described, with emphasis on the axial cytoskeleton and cell-cell associations, in its normal state and when treated with antibiotics, where the axostyle was compacted and became bifurcated near the posterior end.
Cell Morphology and Formal Description of Ergobibamus cyprinoides n. g., n. sp., Another Carpediemonas‐Like Relative of Diplomonads
E. cyprinoides is a bean‐shaped biflagellated cell, 7–11.5 μm long, with a conspicuous groove, and instead of classical mitochondria there are cristae‐lacking rounded organelles 300–400 nm in diameter.
Genetic Evidence for a Mitochondriate Ancestry in the ‘Amitochondriate’ Flagellate Trimastix pyriformis
An expressed sequence tag survey on the preaxostylid flagellate Trimastix pyriformis can be said definitively that all known living eukaryote lineages descend from a common ancestor that had mitochondria.
Ultrastructure and Ribosomal RNA Phylogeny of the Free‐Living Heterotrophic Flagellate Dysnectes brevis n. gen., n. sp., a New Member of the Fornicata
Detailed electron microscopic observations revealed that D. brevis possesses all the key ultrastructural characters considered typical of Excavata, and it is classified as a new free‐living excavate in the Fornicata incertae sedis.
Light Microscopic Observations, Ultrastructure, and Molecular Phylogeny of Hicanonectes teleskopos n. g., n. sp., a Deep‐Branching Relative of Diplomonads
Hicanonectes teleskopos has a ventral groove and two unequal flagella, and rapidly rotates during swimming, and forms a clade with the deep‐branching fornicate Carpediemonas, with moderate‐to‐strong bootstrap support, although their SSU rRNA gene sequences are quite dissimilar.
Malawimonas jakobiformis n. gen., n. sp. (Malawimonadidae n. fam.): A Jakoba‐like Heterotrophic Nanoflagellate with Discoidal Mitochondrial Cristae
On the basis of microscopical features, especially those of the kinetid, the nearest relatives of M. jakobiformis are the mitochondriate “jakobid” protists (families Histionidae and Jakobidae) and the amitochondriate retortamonads.


Ultrastructure of Ditrichomonas honigbergii N. G., N. Sp. (Parabasalia) and Its Relationship to Amitochondrial Protists
Ditrichornonas honigbergii is capable of ingesting and digesting bacteria by phagocytosis and the structure is similar to that of retortamonads and the relationship of trichomonads to other amitochondrial protists is discussed.
Tetramitus exhibits independent ameboid and flagellate stages of remarkable morphological dichotomy and the concept that the formation of the kinetic apparatus might involve a nuclear contribution, followed by a spontaneous assembly of microtubules, is suggested.
Ultrastructure of the amoeboflagellate Tetramitus rostratus.
The life-cycle of the amoeboflagellate Tetramitus rostratus includes amoeboid, cyst, and flagellate stages. The ultrastructure of these three stages is illustrated, with particular emphasis on
Structure, protein composition and birefringence of the costa: a motile flagellar root fibre in the flagellate Trichomonas.
It is shown that the bending is actively produced by the costa itself, and preliminary cytochemical evidence is presented for ATPase activity in thecosta, a type of motile system distinct from any hitherto described.
Protistan phylogeny and eukaryogenesis.
Striated fibers in trichomonads: costa proteins represent a new class of proteins forming striated roots.
The production of monoclonal antibodies and the use of biochemical techniques revealed that B-type costa proteins in trichomonads are composed of several major polypeptides with molecular weight
The heterolobosea (Sarcodina: Rhizopoda), a new class uniting the Schizopyrenida and the Acrasidae (Acrasida)
Il est proposed that l'ordre des Schizopyrenida and celui des Acrasida limite a la famille Acrasidae soient reunis dans une nouvelle classe de l'embranchement des Sarcodina celle des Heterolobosea.