Results 131 to 140 of about 1,230 (158)
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Cercozoa comprises both EF-1α-containing and EFL-containing members
European Journal of Protistology, 2011Elongation factor 1α (EF-1α) and elongation factor-like protein (EFL) are considered to be functionally equivalent proteins involved in peptide synthesis. Eukaryotes can be fundamentally divided into 'EF-1α-containing' and 'EFL-containing' types. Recently, EF-1α and EFL genes have been surveyed across the diversity of eukaryotes to explore the origin ...
Takuro Nakayama +2 more
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Molecular Phylogeny of the Widely Distributed Marine Protists, Phaeodaria (Rhizaria, Cercozoa) [PDF]
Protist, 2015 Phaeodarians are a group of widely distributed marine cercozoans. These plankton organisms can exhibit a large biomass in the environment and are supposed to play an important role in marine ecosystems and in material cycles in the ocean. Accurate knowledge of phaeodarian classification is thus necessary to better understand marine biology, however ...
Noritoshi Suzuki +2 more
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Ultrastructure of the Algivorous Amoeboflagellate Viridiraptor invadens (Glissomonadida, Cercozoa)
Protist, 2014The family Viridiraptoridae represents a morphologically and ecologically distinct lineage of glissomonad flagellates (Cercozoa, Rhizaria). It currently comprises two highly specialised, algivorous genera inhabiting freshwater ecosystems, Orciraptor and Viridiraptor, for which ultrastructural data were lacking.
Sebastian, Hess, Michael, Melkonian
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Ultrastructure of Allapsa vibrans and the Body Plan of Glissomonadida (Cercozoa)
Protist, 2012Biciliate, gliding zooflagellate Cercozoa are globally the most abundant and genetically diverse predators in soil (glissomonads and cercomonads). We present the first detailed ultrastructural study of a phylogenetically well-characterized glissomonad, Allapsa vibrans.
Thomas, Cavalier-Smith, Brian, Oates
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New Genera, Species, and Improved Phylogeny of Glissomonadida (Cercozoa)
Protist, 2011Glissomonadida is an important cercozoan order of predominantly biflagellate gliding bacterivores found largely in soil and freshwater. Their vast diversity is largely undescribed. We studied 23 mostly newly isolated strains by light microscopy and sequenced their 18S rDNA genes; nine represent new species.
Alexis T, Howe +3 more
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Morphology and Phylogeny of Sainouron acronematica sp. n. and the Ultrastructural Unity of Cercozoa
Protist, 2008Sainouron are soil zooflagellates of obscure taxonomy. We studied the ultrastructure of S. acronematica sp. n. and sequenced its extremely divergent 18S rDNA and that of Cholamonas cyrtodiopsidis (here grouped as new family Sainouridae) to clarify their phylogeny.
Thomas, Cavalier-Smith +4 more
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Journal of Molecular Evolution, 2003 There is accumulating evidence that the general shape of the ribosomal DNA-based phylogeny of Eukaryotes is strongly biased by the long-branch attraction phenomenon, leading to an artifactual basal clustering of groups that are probably highly derived. Among these groups, Foraminifera are of particular interest, because their deep phylogenetic position
Cedric Berney +2 more
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Shell Colour in Cercozoa; a Simple Trait to Distinguish Thecofilosea from Imbricatea?
Protist, 2020Rigid and persistent shells of microeukaryotes are widely used as bioindicators in ecological and paleontological studies. Drawing conclusions on ecological or evolutionary patterns depends strongly on the right taxonomic assignment of the observed species, however confusion is common.
Kenneth, Dumack, Ferry, Siemensma
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Placement of the unclassified Cyranomonas australis Lee 2002 within a novel clade of Cercozoa
European Journal of Protistology, 2016Two heterotrophic flagellate strains were isolated from marine sediment samples off eastern Canada and Korea. These new isolates are indistinguishable by light microscopy from the unclassified protist Cyranomonas australis. The organisms are ovoid-shaped cells, 3.5-6μm long, laterally compressed, and somewhat flexible.
Jong Soo Park, Won Je Lee
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