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Monadofilosa
Monadofilosa is a grouping of Cercozoa. (It is sometimes considered one of three, the other two being Phytomyxa and Reticulofilosa.) These organisms are single-celled amoeboid protists. Classification Monadofilosa includes the testaceans, which are testate filose amoeboids, and the cercomonads. It is sometimes described as Testaceafilosia and Sarcomonadea. It has also been described as Sarcomonadea ('' Cercomonas, Heteromita, Bodomorpha, Proleptomonas, Allantion''), Thecofilosea (''Cryptodifflugia, Cryothecomonas''), Spongomonadea ('' Spongomonas, Rhipidodendron''), and Imbricatea ('' Thaumatomonas, Thaumatomastix, Allas, Gyromitus, Euglypha, Trinema, Paulinella''). * The testaceans live both in marine and freshwater habitats, and in mosses. Members include '' Lecythium'', '' Pseudodifflugia'', ''Euglypha'' (a euglyphid), and ''Paulinella chromatophora''. * Cercomonads are flagellates that glide on their posterior cilium and/or generate filopodia. Members of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bodomorpha
Monadofilosa is a grouping of Cercozoa. (It is sometimes considered one of three, the other two being Phytomyxa and Reticulofilosa.) These organisms are single-celled amoeboid protists. Classification Monadofilosa includes the testaceans, which are testate filose amoeboids, and the cercomonads. It is sometimes described as Testaceafilosia and Sarcomonadea. It has also been described as Sarcomonadea ('' Cercomonas, Heteromita, Bodomorpha, Proleptomonas, Allantion''), Thecofilosea (''Cryptodifflugia, Cryothecomonas''), Spongomonadea (''Spongomonas, Rhipidodendron''), and Imbricatea ('' Thaumatomonas, Thaumatomastix, Allas, Gyromitus, Euglypha, Trinema, Paulinella''). * The testaceans live both in marine and freshwater habitats, and in mosses. Members include '' Lecythium'', '' Pseudodifflugia'', ''Euglypha'' (a euglyphid), and ''Paulinella chromatophora''. * Cercomonads are flagellates that glide on their posterior cilium and/or generate filopodia. Members of this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proleptomonas
Monadofilosa is a grouping of Cercozoa. (It is sometimes considered one of three, the other two being Phytomyxa and Reticulofilosa.) These organisms are single-celled amoeboid protists. Classification Monadofilosa includes the testaceans, which are testate filose amoeboids, and the cercomonads. It is sometimes described as Testaceafilosia and Sarcomonadea. It has also been described as Sarcomonadea ('' Cercomonas, Heteromita, Bodomorpha, Proleptomonas, Allantion''), Thecofilosea (''Cryptodifflugia, Cryothecomonas''), Spongomonadea (''Spongomonas, Rhipidodendron''), and Imbricatea ('' Thaumatomonas, Thaumatomastix, Allas, Gyromitus, Euglypha, Trinema, Paulinella''). * The testaceans live both in marine and freshwater habitats, and in mosses. Members include '' Lecythium'', '' Pseudodifflugia'', ''Euglypha'' (a euglyphid), and ''Paulinella chromatophora''. * Cercomonads are flagellates that glide on their posterior cilium and/or generate filopodia. Members of this g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cercozoa
Cercozoa is a phylum of diverse single-celled eukaryotes. They lack shared morphological characteristics at the microscopic level, and are instead defined by molecular phylogenies of rRNA and actin or polyubiquitin. They were the first major eukaryotic group to be recognized mainly through molecular phylogenies. They are the natural predators of many species of microbacteria and Archea. They are closely related to the phylum Retaria, comprising amoeboids that usually have complex shells, and together form a supergroup called Rhizaria. Characteristics The group includes most amoeboids and flagellates that feed by means of filose pseudopods. These may be restricted to part of the cell surface, but there is never a true cytostome or mouth as found in many other protozoa. They show a variety of forms and have proven difficult to define in terms of structural characteristics, although their unity is strongly supported by phylogenetic studies. Diversity Some cercozoans are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spongomonas
The spongomonads are a group of flagellated protists in the phylum Cercozoa. Taxonomically, they compose the family Sarcomonadidae and order Sarcomonadida. They were originally placed among the Reticulofilosa, but were later transferred to Monadofilosa. It includes only two genera: *''Spongomonas'' *''Rhipidodendron The spongomonads are a group of flagellated protists in the phylum Cercozoa. Taxonomically, they compose the family Sarcomonadidae and order Sarcomonadida. They were originally placed among the Reticulofilosa, but were later transferred to Monad ...'' References Filosa SAR supergroup unranked clades {{Cercozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarcomonadea
The sarcomonads () or class Sarcomonadea are a group of amoeboid biciliate protists in the phylum Cercozoa. They are characterized by a propensity to move through gliding on their posterior cilium or through filopodia, a lack of scales or external theca, a soft cell surface without obvious cortical filamentous or membranous skeleton, two cilia without scales or hairs, tubular mitochondrial cristae, near-spherical extrusomes, and a microbody (probably a peroxisome) attached to the nucleus. History In 1993 Cavalier-Smith described the sarcomonads as a subclass known as “Sarcomonadia”, an assemblage of unrelated cercozoans ( thaumatomonads, proteomyxids, cercomonads...) and excavates (jakobids), in the now defunct class “Heteromitea”, in the old phylum “Opalozoa”. This subclass was created to lump together protozoa that have an anisokont type of zoospore (i.e. two cilia of different lengths), are non-thecate and have isodiametric extrusomes. Sarcomonadia was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spongomonadea
The spongomonads are a group of flagellated protist A protist () is any eukaryotic organism (that is, an organism whose cells contain a cell nucleus) that is not an animal, plant, or fungus. While it is likely that protists share a common ancestor (the last eukaryotic common ancestor), the exc ...s in the phylum Cercozoa. Taxonomically, they compose the family Sarcomonadidae and order Sarcomonadida. They were originally placed among the Reticulofilosa, but were later transferred to Monadofilosa. It includes only two genera: *'' Spongomonas'' *'' Rhipidodendron'' References Filosa SAR supergroup unranked clades {{Cercozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amoeboid
An amoeba (; less commonly spelled ameba or amœba; plural ''am(o)ebas'' or ''am(o)ebae'' ), often called an amoeboid, is a type of cell or unicellular organism with the ability to alter its shape, primarily by extending and retracting pseudopods. Amoebae do not form a single taxonomic group; instead, they are found in every major lineage of eukaryotic organisms. Amoeboid cells occur not only among the protozoa, but also in fungi, algae, and animals. Microbiologists often use the terms "amoeboid" and "amoeba" interchangeably for any organism that exhibits amoeboid movement. In older classification systems, most amoebae were placed in the class or subphylum Sarcodina, a grouping of single-celled organisms that possess pseudopods or move by protoplasmic flow. However, molecular phylogenetic studies have shown that Sarcodina is not a monophyletic group whose members share common descent. Consequently, amoeboid organisms are no longer classified together in one group.Jan Pawlows ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhipidodendron
The spongomonads are a group of flagellated protist A protist () is any eukaryotic organism (that is, an organism whose cells contain a cell nucleus) that is not an animal, plant, or fungus. While it is likely that protists share a common ancestor (the last eukaryotic common ancestor), the exc ...s in the phylum Cercozoa. Taxonomically, they compose the family Sarcomonadidae and order Sarcomonadida. They were originally placed among the Reticulofilosa, but were later transferred to Monadofilosa. It includes only two genera: *'' Spongomonas'' *'' Rhipidodendron'' References Filosa SAR supergroup unranked clades {{Cercozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imbricatea
Imbricatea is a class of Rhizaria characterised by silica scales. It is sometimes described as "Imbricatea/Silicofilosea", due to the similarity of those two groupings. Imbricatea is divided into the orders Euglyphida and Thaumatomonadida Thaumatomonadida is an order of flagellates A flagellate is a cell or organism with one or more whip-like appendages called flagella. The word ''flagellate'' also describes a particular construction (or level of organization) characteristi .... Phylogeny Phylogeny based on Cavalier-Smith & Chao 2012 References Cercozoa classes {{Cercozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaumatomonas
''Thaumatomonas'' is a genus within Imbricatea Imbricatea is a class of Rhizaria characterised by silica scales. It is sometimes described as "Imbricatea/Silicofilosea", due to the similarity of those two groupings. Imbricatea is divided into the orders Euglyphida and Thaumatomonadida Thau ... of the phylum Cercozoa. It includes the species * '' Thaumatomonas coloniensis'' Wylezich et al. 2007 * '' Thaumatomonas constricta'' Scoble & Cavalier-Smith 2014 * '' Thaumatomonas hindoni'' (Nicholls 2012) Scoble & Cavalier-Smith 2014 * '' Thaumatomonas lauterborni'' de Saedeleer 1931 * '' Thaumatomonas oxoniensis'' Bass & Cavalier-Smith 2011 * '' Thaumatomonas seravini'' Mylnikov & Karpov 1993 * '' Thaumatomonas solis'' Scoble & Cavalier-Smith 2014 * '' Thaumatomonas vancouveri'' Cavalier-Smith & Chao 2011 * '' Thaumatomonas zhukovi'' Mylnikov 2003Mylnikov AP, Mylnikov AA (2003) The new amoeboid flagellate ''Thaumatomonas zhukovi'' (Thaumatomonadida, Protozoa). Zool Zhurn 82:1411 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaumatomastix
''Thaumatomastix'' is a protist genus of the order ''Thaumatomonadida'', within the phylum Cercozoa and the class Imbricatea. Its species are aquatic, feeding on algae and appearing in waters of a wide range of temperatures and salinities, and are 15-50 micrometers long. They can interchange between flagellated and amoeboid forms, and are notable for being covered in both spiny and flattened siliceous scales. Etymology The genus was named by Robert Lauterborn in 1899. '' Thauma'' in Greek can mean ‘miracle,’ ‘wonder,’ or ‘marvel,’ while ''mastix'' is a suffix (also Greek-derived) that can be used to mean ‘scourge’ or ‘whip,’ which may refer to the organism’s flagella. History of knowledge The genus was first identified in 1899 by Robert Lauterborn, a German protozoologist. Since then several new species have been discovered within the genus. However, analyses of ribosomal DNA have indicated that Thaumatomastix may in fact be a paraphyletic group, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
