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European Journal of Protistology, 1999
Summary The ultrastructure of Carpediemonas membranifera , a small flagellate isolated from marine intertidal sediments, is presented for the first time. This protist has two flagella inserting at the anterior end of a feeding groove. The posterior flagellum bears three vanes. The cell has an anterior nucleus, a single dictyosome and a hydrogenosome-
Alastair G.B. Simpson +1 more
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Summary The ultrastructure of Carpediemonas membranifera , a small flagellate isolated from marine intertidal sediments, is presented for the first time. This protist has two flagella inserting at the anterior end of a feeding groove. The posterior flagellum bears three vanes. The cell has an anterior nucleus, a single dictyosome and a hydrogenosome-
Alastair G.B. Simpson +1 more
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Journal of Parasitology, 1996 The phylogenetic position of the phylum Haplosporidia was investigated with the complete small subunit rRNA gene sequences from 5 species in the phylum: Haplosporidium nelsoni and Haplosporidium costale, parasites of the eastern oyster Crassostrea virginica; Haplosporidium louisiana, a parasite of the mudcrab Panopeus herbstii; Minchinia teredinis, a ...
B S, Flores, M E, Siddall, E M, Burreson
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Alternative pathway (cyanobacteria to eukaryota)
1994It is quite evident from the fossil record that prokaryotic cells were the first cell type evolved. After a long interval of nearly two billion years eukaryotic cells appeared. There is little doubt that this cell type arose from the bacterial cell. How this occurred has been the subject of much speculation.
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Biology Bulletin, 2005
The distribution of protein domains was analyzed in superkingdoms Archaea, Bacteria, and Eukaryota. About a half of eukaryotic domains have prokaryotic origin. Many domains related to information processing in the nucleocytoplasm were inherited from archaea.
A V, Markov, A M, Kulikov
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The distribution of protein domains was analyzed in superkingdoms Archaea, Bacteria, and Eukaryota. About a half of eukaryotic domains have prokaryotic origin. Many domains related to information processing in the nucleocytoplasm were inherited from archaea.
A V, Markov, A M, Kulikov
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Evoluce skupiny Retortamonadida (Eukaryota: Excavata: Fornicata)
2010Retortamonads (Retortamonadida; genera Chilomastix and Retortamonas) are a small group of protists comprising intestinal commensals of both vertebrates and invertebrates and one free-living species of the genus Chilomastix. Molecular phylogenetic studies showed that retortamonads are closely related to diplomonads, Carpediemonas, Dysnectes ...
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New genomic insights into ciliates with loricae (Eukaryota: Alveolata)
Zoological Journal of the Linnean SocietyAbstract Several ciliate taxa have evolved loricae as an adaptation for survival in specific environments. Previous studies of loricate ciliates have focused mainly on morphological and functional properties, whereas the molecular evolutionary biology of this particular group of ciliates, especially at the genomic level, has been ...
Ying Zhang, Alan Warren, Lifang Li
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Origin of eukaryota from Cyanobacterium: membrane evolution theory
1994It has been currently estimated that the life generated about four billion years ago in the primitive sea as a result of the chemical evolution. There is no doubt that, at that time, the protoorganism was a prokaryotic monad, formed from a certain aggregate of primitive proteins, nucleic acids, and other macromolecules and wrapped with (phospho)lipid ...
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