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Hartmannellidae
The Hartmannellidae are a family of amoebozoa, usually found in soils. When active they tend to be roughly cylindrical in shape, with a single leading pseudopod and no subpseudopodia. This form somewhat resembles a slug and as such they are also called limax amoebae. Trees based on rRNA show the Hartmannellidae as usually defined are paraphyletic to the Amoebidae The Amoebidae are a family of Amoebozoa, including naked amoebae that produce multiple pseudopodia of indeterminate length. These are roughly cylindrical with granular endoplasm and no subpseudopodia, as found in other members of the class Tubuli ..., which may adopt similar forms. References External links Amoebozoa families {{Amoebozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nolandella
The Hartmannellidae are a family of amoebozoa, usually found in soils. When active they tend to be roughly cylindrical in shape, with a single leading pseudopod and no subpseudopodia. This form somewhat resembles a slug and as such they are also called limax amoebae. Trees based on rRNA show the Hartmannellidae as usually defined are paraphyletic to the Amoebidae The Amoebidae are a family of Amoebozoa, including naked amoebae that produce multiple pseudopodia of indeterminate length. These are roughly cylindrical with granular endoplasm and no subpseudopodia, as found in other members of the class Tubul ..., which may adopt similar forms. References External links Amoebozoa families {{Amoebozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polychaos
Polychaos is an amoeboid genus in the Amoebozoa group. Several characters unite the species in this genus. The pseudopods meld at their bases when the organism is moving, and have dorsal, longitudinal ridges. The nucleus is oval or ellipsoid. Classification ''Polychaos'' includes the following species: * ''Polychaos annulatum'' (Pénard 1902) Smirnov & Goodkov 1998 * ''Polychaos dubium ''Polychaos dubium'' is a freshwater amoeboid and one of the larger species of single-celled eukaryote. Like other amoebozoans, ''P. dubium'' moves by means of temporary projections called pseudopods. ''P. dubium'' reportedly has one of the larg ...'' (Schaeffer, 1916) Schaeffer 1926 * ''Polychaos fasciculatum'' (Penard, 1902) Schaeffer 1926 * ''Polychaos nitidubium'' Bovee, 1970 * ''Polychaos timidum'' Bovee, 1972 Phylogenetic analysis has shown this that genus belongs to the family Hartmannellidae.Kamyshatskaya OG, Bondarenko NI, Mesentsev YS, Chistyakova LV, Nassonova ES, Smirnov AV ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saccamoeba
The Hartmannellidae are a family of amoebozoa, usually found in soils. When active they tend to be roughly cylindrical in shape, with a single leading pseudopod and no subpseudopodia. This form somewhat resembles a slug and as such they are also called limax amoebae. Trees based on rRNA show the Hartmannellidae as usually defined are paraphyletic to the Amoebidae The Amoebidae are a family of Amoebozoa, including naked amoebae that produce multiple pseudopodia of indeterminate length. These are roughly cylindrical with granular endoplasm and no subpseudopodia, as found in other members of the class Tubul ..., which may adopt similar forms. References External links Amoebozoa families {{Amoebozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tubulinea
The Tubulinea are a major grouping of Amoebozoa, including most of the more familiar amoebae genera like ''Amoeba'', ''Arcella'', ''Difflugia'' and ''Hartmannella''. Characteristics During locomotion most Tubulinea have a roughly cylindrical form or produce numerous cylindrical pseudopods. Each cylinder advances by a single central stream of cytoplasm, granular in appearance, and has no subpseudopodia. This distinguishes them from other amoeboid groups, although in some members this is not the normal type of locomotion. Classification This class was anticipated by some biologists like Jahn, who grouped all amoebae with granular pseudopodia together, but most split the lobose amoebae into testate Testacealobosia and naked Gymnamoebia. These latter are polyphyletic, but molecular trees by Bolivar ''et al.'' identified a core monophyletic subgroup. Subsequent studies showed the testate lobose amoebae belong to the same group, which was thus renamed Lobosea ''sensu stricto'' or Tu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euamoebida
The Tubulinea are a major grouping of Amoebozoa, including most of the more familiar amoebae genera like ''Amoeba'', ''Arcella'', ''Difflugia'' and '' Hartmannella''. Characteristics During locomotion most Tubulinea have a roughly cylindrical form or produce numerous cylindrical pseudopods. Each cylinder advances by a single central stream of cytoplasm, granular in appearance, and has no subpseudopodia. This distinguishes them from other amoeboid groups, although in some members this is not the normal type of locomotion. Classification This class was anticipated by some biologists like Jahn, who grouped all amoebae with granular pseudopodia together, but most split the lobose amoebae into testate Testacealobosia and naked Gymnamoebia. These latter are polyphyletic, but molecular trees by Bolivar ''et al.'' identified a core monophyletic subgroup. Subsequent studies showed the testate lobose amoebae belong to the same group, which was thus renamed Lobosea ''sensu stricto'' or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copromyxa
''Copromyxa'' is a genus of Amoebozoa Amoebozoa is a major taxonomic group containing about 2,400 described species of amoeboid protists, often possessing blunt, fingerlike, lobose pseudopods and tubular mitochondrial cristae. In traditional and currently no longer supported classi ... in the eukaryotic supergroup Amoebozoa. It currently includes 2 species, the sorocarpic (aggregatively fruiting) amoeba ''Copromyxa protea'' and the non-sorocarpic amoeba ''Copromyxa (=Hartmannella) cantabrigiensis''. There is also a species ''Copromyxa arborescens,'' which is a synonym of ''C. protea''. References Amoebozoa genera {{Amoebozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copromyxella
''Copromyxella'' is a genus of Amoebozoa Amoebozoa is a major taxonomic group containing about 2,400 described species of amoeboid protists, often possessing blunt, fingerlike, lobose pseudopods and tubular mitochondrial cristae. In traditional and currently no longer supported classi .... It includes the species ''Copromyxella coralloides''. References Amoebozoa genera {{Amoebozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaeseria
''Glaeseria'' is a genus of Amoebozoa, including the species ''Glaeseria mira'' and ''Glaeseria testudinis''. Family: Body monopodial; pseudopods rare; locomotion by slight forward bulging; cysts common. Genus: Hyaline cap usually present in locomotion; cysts uninucleate {{Short pages monitor [Baidu] |
Hartmannella
''Hartmannella'' is a genus of Amoebozoa. Species * '' Hartmannella agricola'' Goodey 1916 * '' Hartmannella aquara'' Jollos 1917 * '' Hartmannella biparia'' Richards 1968 * ?'' Hartmannella castellanii'' * ?'' Hartmannella crumpae'' Singh & Hanumaiah 1979 * ?'' Hartmannella diploidea'' * '' Hartmannella exudans'' Page 1967 * '' Hartmannella fecalis'' Walker 1908 * '' Hartmannella fluvialis'' Dobell 1914 * ?'' Hartmannella horticola'' (Nägler 1909) * '' Hartmannella hyalina'' (Dangeard 1900) Aléxéieff 1912 * ?'' Hartmannella indicans'' * '' Hartmannella klitzkei'' Arndt 1924 * '' Hartmannella lamellipodia'' Glaeser 1912 * '' Hartmannella leptochema'' Singh 1951 * ?'' Hartmannella limax'' * '' Hartmannella lobifera'' Smirnov 1997 * ?'' Hartmannella motonucleata'' Lepşi 1960 * ?'' Hartmannella quadriparia'' Richards 1968 * ?'' Hartmannella tahitiensis'' Cheng 1970 * ?'' Hartmannella testudinis'' Ivanic 1926 * '' Hartmannella vacuolata'' Anderson, Rogerson & Hannah 1997 '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slug
Slug, or land slug, is a common name for any apparently shell-less terrestrial gastropod mollusc. The word ''slug'' is also often used as part of the common name of any gastropod mollusc that has no shell, a very reduced shell, or only a small internal shell, particularly sea slugs and semislugs (this is in contrast to the common name ''snail'', which applies to gastropods that have a coiled shell large enough that they can fully retract their soft parts into it). Various taxonomic families of land slugs form part of several quite different evolutionary lineages, which also include snails. Thus, the various families of slugs are not closely related, despite a superficial similarity in the overall body form. The shell-less condition has arisen many times independently as an example of convergent evolution, and thus the category "slug" is polyphyletic. Taxonomy Of the six orders of Pulmonata, two – the Onchidiacea and Soleolifera – solely comprise slugs. A third family, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraphyly
In taxonomy, a group is paraphyletic if it consists of the group's last common ancestor and most of its descendants, excluding a few monophyletic subgroups. The group is said to be paraphyletic ''with respect to'' the excluded subgroups. In contrast, a monophyletic group (a clade) includes a common ancestor and ''all'' of its descendants. The terms are commonly used in phylogenetics (a subfield of biology) and in the tree model of historical linguistics. Paraphyletic groups are identified by a combination of synapomorphies and symplesiomorphies. If many subgroups are missing from the named group, it is said to be polyparaphyletic. The term was coined by Willi Hennig to apply to well-known taxa like Reptilia ( reptiles) which, as commonly named and traditionally defined, is paraphyletic with respect to mammals and birds. Reptilia contains the last common ancestor of reptiles and all descendants of that ancestor, including all extant reptiles as well as the extinct synapsids, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RRNA
Ribosomal ribonucleic acid (rRNA) is a type of non-coding RNA which is the primary component of ribosomes, essential to all cells. rRNA is a ribozyme which carries out protein synthesis in ribosomes. Ribosomal RNA is transcribed from ribosomal DNA (rDNA) and then bound to ribosomal proteins to form small and large ribosome subunits. rRNA is the physical and mechanical factor of the ribosome that forces transfer RNA (tRNA) and messenger RNA (mRNA) to process and translate the latter into proteins. Ribosomal RNA is the predominant form of RNA found in most cells; it makes up about 80% of cellular RNA despite never being translated into proteins itself. Ribosomes are composed of approximately 60% rRNA and 40% ribosomal proteins by mass. Structure Although the primary structure of rRNA sequences can vary across organisms, base-pairing within these sequences commonly forms stem-loop configurations. The length and position of these rRNA stem-loops allow them to create three-di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
