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Thaumatomastix Thomseni
''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 Salinity, 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. ''wiktionary:θαύμα, Thauma'' in Greek can mean ‘miracle,’ ‘wonder,’ or ‘marvel,’ while ''-mastix, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaumatomonadida
Thaumatomonadida is an order of flagellates A flagellate is a cell or organism with one or more whip-like appendages called flagellum, flagella. The word ''flagellate'' also describes a particular construction (or level of organization) characteristic of many prokaryotes and eukaryote .... Taxonomy Order Thaumatomonadida Shirkina 1987 * Genus '' Cowlomonas'' Scoble & Cavalier-Smith 2014 * Genus '' Heterochromonas'' Lee & Patterson 2000 * Family Esquamulidae Shiratori, Yabuki & Ishida 2012 ** Genus '' Esquamula'' Shiratori, Yabuki & Ishida 2012 * Family Peregriniidae Cavalier-Smith 2011 ** Genus '' Gyromitus'' Skuja 1939 ** Genus '' Peregrinia'' Cavalier-Smith 2011 non Vorobyeva & Lebedev 1986 * Family Thaumatomonadidae Hollande 1952 ( Thaumatomastigidae Vørs 1992; Thaumatomastigaceae Patterson & Zölffel 1991] ** Genus '' Allas (flagellate), Allas'' Sandon 1927 ** Genus '' Hyaloselene'' Skuja 1956 ** Genus '' Thaumatomastix'' Lauterborn 1899 Chrysosphaerella.html" ;" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitochondrion
A mitochondrion () is an organelle found in the cell (biology), cells of most eukaryotes, such as animals, plants and fungi. Mitochondria have a double lipid bilayer, membrane structure and use aerobic respiration to generate adenosine triphosphate (ATP), which is used throughout the cell as a source of chemical energy. They were discovered by Albert von Kölliker in 1857 in the voluntary muscles of insects. The term ''mitochondrion'', meaning a thread-like granule, was coined by Carl Benda in 1898. The mitochondrion is popularly nicknamed the "powerhouse of the cell", a phrase popularized by Philip Siekevitz in a 1957 ''Scientific American'' article of the same name. Some cells in some multicellular organisms lack mitochondria (for example, mature mammalian red blood cells). The multicellular animal ''Henneguya zschokkei, Henneguya salminicola'' is known to have retained mitochondrion-related organelles despite a complete loss of their mitochondrial genome. A large number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaumatomastix Thomseni
''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 Salinity, 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. ''wiktionary:θαύμα, Thauma'' in Greek can mean ‘miracle,’ ‘wonder,’ or ‘marvel,’ while ''-mastix, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudopodia
A pseudopod or pseudopodium (: pseudopods or pseudopodia) is a temporary arm-like projection of a eukaryotic cell membrane that is emerged in the direction of movement. Filled with cytoplasm, pseudopodia primarily consist of actin filaments and may also contain microtubules and intermediate filaments. Pseudopods are used for motility and ingestion. They are often found in amoebas. Different types of pseudopodia can be classified by their distinct appearances. Lamellipodia are broad and thin. Filopodia are slender, thread-like, and are supported largely by microfilaments. Lobopodia are bulbous and amoebic. Reticulopodia are complex structures bearing individual pseudopodia which form irregular nets. Axopodia are the phagocytosis type with long, thin pseudopods supported by complex microtubule arrays enveloped with cytoplasm; they respond rapidly to physical contact. Generally, several pseudopodia arise from the surface of the body, (''polypodial'', for example, '' Amoeba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ejectosome
An ejectosome is a cellular organelle responsible for ejecting their contents from the cell. Two unrelated types of ejectosomes are described in the literature: # Cryptomonads have two types of characteristic extrusomes known as ejectosomes. # Intracellular pathogens, such as ''Mycobacterium tuberculosis'', escape from their host cells using an actin-based structure, also called an ejectosome. Cryptomonad ejectosomes contain two connected spiral ribbon-like structures, held under tension. If the cells are irritated either by mechanical, chemical or light stress, they discharge, propelling the cell in a zig-zag course away from the disturbance. Large ejectisomes, visible under the light microscope, are associated with the pocket; smaller ones occur elsewhere on the cell. Mycobacteria are ejected from host cells through the action of an actin-based ejectosome. This escape mechanism requires a cytoskeleton regulator from the host plus an intact mycobacterial ESX-1 secretion Secr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
