|
Heteramoeba
Vahlkampfiidae is a family of Heterolobosea. It includes the following genera: * ''Monopylocystis'' * '' Naegleria'' * ''Neovahlkampfia'' * ''Paravahlkampfia'' * ''Psalteriomonas'' * ''Sawyeria'' * '' Tetramitus'' * ''Vahlkampfia'' * ''Willaertia'' See also *Gruberellidae Gruberellidae is a family of Heterolobosea The Percolozoa are a group of colourless, non-photosynthetic Excavata, including many that can transform between amoeboid, flagellate, and cyst stages. Characteristics Most Percolozoa are found as bact ... References Further reading Percolozoa Excavata families {{Excavata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterolobosea
The Percolozoa are a group of colourless, non-photosynthetic Excavata, including many that can transform between amoeboid, flagellate, and cyst stages. Characteristics Most Percolozoa are found as bacterivores in soil, fresh water and occasionally in the ocean. The only member of this group that is infectious to humans is ''Naegleria fowleri'', the causative agent of the often fatal disease amoebic meningitis. The group is closely related to the Euglenozoa, and share with them the unusual characteristic of having mitochondria with discoid cristae. The presence of a ventral feeding groove in the flagellate stage, as well as other features, suggests that they are part of the Excavata group. The amoeboid stage is roughly cylindrical, typically around 20-40 μm in length. They are traditionally considered lobose amoebae, but are not related to the others, and unlike them, do not form true lobose pseudopods. Instead, they advance by eruptive waves, where hemispherical bulges appea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Percolozoa
The Percolozoa are a group of colourless, non-photosynthetic Excavata, including many that can transform between amoeboid, flagellate, and cyst stages. Characteristics Most Percolozoa are found as bacterivores in soil, fresh water and occasionally in the ocean. The only member of this group that is infectious to humans is ''Naegleria fowleri'', the causative agent of the often fatal disease amoebic meningitis. The group is closely related to the Euglenozoa, and share with them the unusual characteristic of having mitochondria with discoid cristae. The presence of a ventral feeding groove in the flagellate stage, as well as other features, suggests that they are part of the Excavata group. The amoeboid stage is roughly cylindrical, typically around 20-40 μm in length. They are traditionally considered lobose amoebae, but are not related to the others, and unlike them, do not form true lobose pseudopods. Instead, they advance by eruptive waves, where hemispherical bulges a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naegleria Fowleri
''Naegleria fowleri'', colloquially known as a "brain-eating amoeba", is a species of the genus ''Naegleria'', belonging to the phylum Percolozoa, which is technically not classified as true amoeba, but a shapeshifting amoeboflagellate excavate. It is a free-living, bacteria-eating microorganism that can be pathogenic, causing an extremely rare, sudden, severe and usually fatal brain infection called naegleriasis or primary amoebic meningoencephalitis (PAM). This microorganism is typically found in bodies of warm freshwater, such as ponds, lakes, rivers, hot springs, warm water discharge from industrial or power plants, geothermal well water, poorly maintained or minimally chlorinated (under 0.5 mg/m3 residual) swimming pools, water heaters, soil, and pipes connected to tap water. It can be seen in either an amoeboid or temporary flagellate stage. Etymology The organism was named after Malcolm Fowler, an Australian pathologist at Adelaide Children's Hospital, who was the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naegleria
''Naegleria'' is a free living amoebae protist genus consisting of 47 described species often found in warm aquatic environments as well as soil habitats worldwide. It has three life cycle forms: the amoeboid stage, the cyst stage, and the flagellated stage, and has been routinely studied for its ease in change from amoeboid to flagellated stages. The ''Naegleria'' genera became famous when ''Naegleria fowleri'', a human pathogenic strain and the causative agent of primary amoebic meningoencephalitis (PAM), was discovered in 1965. Most species in the genus, however, are non pathogenic. Etymology The genus ''Naegleria'' is named after the German protozoologist, Kurt Nägler. History In 1899, Franz Schardinger discovered an amoeba that had the ability to transform into a flagellated stage. He named the organism ''Amoeba gruberi'', which was later changed to the genus ''Naegleria'' in 1912 by Alexeieff. Before 1970, the genus was generally used as a model organism to study th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vahlkampfia
''Vahlkampfia'' is a genus of amoeboids in Heterolobosea The Percolozoa are a group of colourless, non-photosynthetic Excavata, including many that can transform between amoeboid, flagellate, and cyst stages. Characteristics Most Percolozoa are found as bacterivores in soil, fresh water and occasionall .... References Further reading *Brown, Susan; De Jonckheere, Johan F. (Feb. 25, 1999). "A reevaluation of the amoeba genus Vahlkampfia based on SSUrDNA sequences". ''European Journal of Protistology'' 35 (1):49-54. doi:10.1016/S0932-4739(99)80021-2 * * Percolozoa Excavata genera {{Excavata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Willaertia
''Willaertia'' Help:IPA/English, /ˈwɪləɹʃə/ is a genus of non-pathogenic, free-living, Thermophile, thermophilic amoebae in the family Vahlkampfiidae. Originally discovered in 1984 by Johan De Jonckheere, their life cycle, like that of other heteroloboseans, has been found to alternate between 3 distinct stages: a cyst, amoeba, and temporary flagellated stage. ''Willaertia'' lives in a variety of environments and in recent years has been researched to potentially become a biocide for ''Legionella pneumophila.'' Etymology The genus name ''Willaertia'' was proposed by the original discoverer, De Jonckheere, and was named in memory of Dr. Eddy Willaert. History ''Willaertia'' was first described in 1984 by Johan F. De Jonckheere, who initially discovered two strains from a sample of bovine faeces and 3 other strains from soil and water samples. Through morphology alone, De Jonckheere determined that ''W. magna'' is different from other members of the family Vahlkampfiidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NCBI Taxonomy Browser
The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The NCBI is located in Bethesda, Maryland, and was founded in 1988 through legislation sponsored by US Congressman Claude Pepper. The NCBI houses a series of databases relevant to biotechnology and biomedicine and is an important resource for bioinformatics tools and services. Major databases include GenBank for DNA sequences and PubMed, a bibliographic database for biomedical literature. Other databases include the NCBI Epigenomics database. All these databases are available online through the Entrez search engine. NCBI was directed by David Lipman, one of the original authors of the BLAST sequence alignment program and a widely respected figure in bioinformatics. GenBank NCBI had responsibility for making available the GenBank DNA ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Center For Biotechnology Information
The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The NCBI is located in Bethesda, Maryland, and was founded in 1988 through legislation sponsored by US Congressman Claude Pepper. The NCBI houses a series of databases relevant to biotechnology and biomedicine and is an important resource for bioinformatics tools and services. Major databases include GenBank for DNA sequences and PubMed, a bibliographic database for biomedical literature. Other databases include the NCBI Epigenomics database. All these databases are available online through the Entrez search engine. NCBI was directed by David Lipman, one of the original authors of the BLAST sequence alignment program and a widely respected figure in bioinformatics. GenBank NCBI had responsibility for making available the GenBank DNA seque ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
