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Gephyramoeba
''Gephyramoeba'' is a genus of heterotrophic amoebae, morphologically similar to genera ''Rhizamoeba'' and ''Leptomyxa ''Leptomyxa'' is a free-living genus of lobose naked multinucleate amoebae in the order Leptomyxida that inhabits freshwater, soil and mosses. It is very closely related to the genus ''Rhizamoeba'', and some species have been moved between the ...'', although it is not genetically related to either of these genera. It has been suggested that "Gephyramoeba sp." ATCC 50654 is not truly ''Gephyramoeba''. References External links''Gephyramoeba'' on PubMed Amoebozoa genera {{Amoebozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptomyxida
Leptomyxida is an order of Amoebozoa. It includes species such as ''Flabellula citata'', ''Paraflabellula hoguae'', ''Paraflabellula reniformis'', ''Rhizamoeba saxonica'' and ''Leptomyxa reticulata''. Taxonomy The taxonomy of Leptomyxida as revised in 2017 recognizes 23 confirmed species: *Order Leptomyxida **Family Flabellulidae ***''Flabellula'' , (includes former ''Paraflabellula'' ) — 10 species **Family Gephyramoebidae ***''Gephyramoeba'' — 1 species **Family Leptomyxidae ***''Leptomyxa'' — 9 species **Family Rhizamoebidae ***''Rhizamoeba ''Rhizamoeba'' is a small genus of free-living marine naked lobose amoebae in the monotypic family Rhizamoebidae in the order Leptomyxida. It is most closely related to '' Leptomyxa'' and ''Flabellula'', and some species have been moved to ' ...'' — 3 species References External links * Amoebozoa orders Tubulinea {{Amoebozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gephyramoebidae
Leptomyxida is an order of Amoebozoa. It includes species such as ''Flabellula citata'', '' Paraflabellula hoguae'', ''Paraflabellula reniformis'', '' Rhizamoeba saxonica'' and '' Leptomyxa reticulata''. Taxonomy The taxonomy of Leptomyxida as revised in 2017 recognizes 23 confirmed species: *Order Leptomyxida **Family Flabellulidae Leptomyxida is an Order (biology), order of Amoebozoa. It includes species such as ''Flabellula citata'', ''Paraflabellula hoguae'', ''Paraflabellula reniformis'', ''Rhizamoeba saxonica'' and ''Leptomyxa reticulata''. Taxonomy The taxonomy of L ... ***'' Flabellula'' , (includes former '' Paraflabellula'' ) — 10 species **Family Gephyramoebidae ***'' Gephyramoeba'' — 1 species **Family Leptomyxidae ***'' Leptomyxa'' — 9 species **Family Rhizamoebidae ***'' Rhizamoeba'' — 3 species References External links * Amoebozoa orders Tubulinea {{Amoebozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhizamoeba
''Rhizamoeba'' is a small genus of free-living marine naked lobose amoebae in the monotypic family Rhizamoebidae in the order Leptomyxida. It is most closely related to '' Leptomyxa'' and ''Flabellula'', and some species have been moved to '' Leptomyxa'' due to molecular data. Morphology Members of ''Rhizamoeba'' are characterized by their morphology when they move, which is usually monopodial (with a single ramification), alternating between a slug-like shape and a fan shape. They have either one nucleus or multiple (less than 50) nuclei. Classification The paraphyly of the genus caused the transfer of two previously rhizamoeban species into '' Leptomyxa'': '' R. australiensis'' and '' R. neglecta''. As a result, only 3 species are currently confirmed as ''Rhizamoeba'': * '' Rhizamoeba saxonica'' * '' Rhizamoeba polyura'' * '' Rhizamoeba matisi'' Other possible species are not yet confirmed due to lack of published data or poor documentation. Some of these are: '' R. sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eukaryota
The eukaryotes ( ) constitute the Domain (biology), domain of Eukaryota or Eukarya, organisms whose Cell (biology), cells have a membrane-bound cell nucleus, nucleus. All animals, plants, Fungus, fungi, seaweeds, and many unicellular organisms are eukaryotes. They constitute a major group of Outline of life forms, life forms alongside the two groups of prokaryotes: the Bacteria and the Archaea. Eukaryotes represent a small minority of the number of organisms, but given their generally much larger size, their collective global biomass is much larger than that of prokaryotes. The eukaryotes emerged within the archaeal Kingdom (biology), kingdom Asgard (Archaea), Promethearchaeati and its sole phylum Promethearchaeota. This implies that there are only Two-domain system, two domains of life, Bacteria and Archaea, with eukaryotes incorporated among the Archaea. Eukaryotes first emerged during the Paleoproterozoic, likely as Flagellated cell, flagellated cells. The leading evolutiona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amoebozoa
Amoebozoa is a major Taxonomy (biology), taxonomic group containing about 2,400 described species of Amoeba, amoeboid protists, often possessing blunt, fingerlike, Pseudopod#Morphology, lobose pseudopods and tubular mitochondrial cristae. In traditional classification schemes, Amoebozoa is usually ranked as a phylum within either the kingdom (biology), kingdom Protista or the kingdom Protozoa. In the classification favored by the International Society of Protistologists, it is retained as an unranked "supergroup (biology), supergroup" within Eukaryota. Molecular genetics, Molecular genetic analysis supports Amoebozoa as a monophyletic clade. Modern studies of eukaryotic phylogenetic trees identify it as the sister group to Opisthokonta, another major clade which contains both fungi and animals as well as several other clades comprising some 300 species of unicellular eukaryotes. Amoebozoa and Opisthokonta are sometimes grouped together in a high-level taxon, named Amorphea. Amoeboz ... [...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 such as 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 stric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterotrophic
A heterotroph (; ) is an organism that cannot produce its own food, instead taking nutrition from other sources of organic carbon, mainly plant or animal matter. In the food chain, heterotrophs are primary, secondary and tertiary consumers, but not producers. Living organisms that are heterotrophic include all animals and fungi, some bacteria and protists, and many parasitic plants. The term heterotroph arose in microbiology in 1946 as part of a classification of microorganisms based on their type of nutrition. The term is now used in many fields, such as ecology, in describing the food chain. Heterotrophs occupy the second and third trophic levels of the food chain while autotrophs occupy the first trophic level. Heterotrophs may be subdivided according to their energy source. If the heterotroph uses chemical energy, it is a chemoheterotroph (e.g., humans and mushrooms). If it uses light for energy, then it is a photoheterotroph (e.g., green non-sulfur bacteria). Heterotrop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptomyxa
''Leptomyxa'' is a free-living genus of lobose naked multinucleate amoebae in the order Leptomyxida that inhabits freshwater, soil and mosses. It is very closely related to the genus ''Rhizamoeba'', and some species have been moved between the two genera due to molecular data. Description Members of this genus have loboreticulopodia: wide and smooth cytoplasmic projections (like lobopodia) that can also connect to each other to form a net-like structure (like reticulopodia). They differ from ''Rhizamoeba'' not only on a molecular level but also in their morphology: each ''Leptomyxa'' cell has usually up to hundreds of nuclei, while ''Rhizamoeba'' cells contain between one and up to dozens of nuclei, and the organization of the cell is plasmodial among ''Leptomyxa'' while monopodial among ''Rhizamoeba''. Classification As of 2017, nine species belong to this genus. # '' Leptomyxa ambigua'' # '' Leptomyxa arborea'' # '' Leptomyxa australiensis'' # '' Leptomyxa flabellata'' # ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetics
Genetics is the study of genes, genetic variation, and heredity in organisms.Hartl D, Jones E (2005) It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinians, Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically. Mendel studied "trait inheritance", patterns in the way traits are handed down from parents to offspring over time. He observed that organisms (pea plants) inherit traits by way of discrete "units of inheritance". This term, still used today, is a somewhat ambiguous definition of what is referred to as a gene. Phenotypic trait, Trait inheritance and Molecular genetics, molecular inheritance mechanisms of genes are still primary principles of genetics in the 21st century, but modern genetics has expanded to study the function and behavior of genes. Gene structure and function, variation, and distribution are studied within the context of the Cell (bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
