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Trichosporon
''Trichosporon'' is a genus of anamorphic fungi in the family Trichosporonaceae. All species of ''Trichosporon'' are yeasts with no known teleomorphs (sexual states). Most are typically isolated from soil, but several species occur as a natural part of the skin microbiota of humans and other animals. Proliferation of ''Trichosporon'' yeasts in the hair can lead to an unpleasant but non-serious condition known as white piedra. ''Trichosporon'' species can also cause severe opportunistic infections ( trichosporonosis) in immunocompromised individuals. Taxonomy The genus was first described by the German dermatologist Gustav Behrend in 1890, based on yeasts isolated from the hairs of a moustache where they were causing the condition known as "white piedra". Behrend called his new species '' Trichosporon ovoides''. Friedrich Küchenmeister and Rabenhorst had, however, previously described a species in 1867 from the hairs of a wig. They thought that the organism was an alga and plac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichosporon Ovoides
''Trichosporon'' is a genus of anamorphic fungi in the family (biology), family Trichosporonaceae. All species of ''Trichosporon'' are yeasts with no known teleomorphs (sexual states). Most are typically isolated from soil, but several species occur as a natural part of the skin flora, skin microbiota of humans and other animals. Proliferation of ''Trichosporon'' yeasts in the hair can lead to an unpleasant but non-serious condition known as white piedra. ''Trichosporon'' species can also cause severe opportunistic infections (trichosporonosis) in immunocompromised individuals. Taxonomy The genus was first described by the German dermatologist Gustav Behrend in 1890, based on yeasts isolated from the hairs of a moustache where they were causing the condition known as "white piedra". Behrend called his new species ''Trichosporon ovoides''. Friedrich Küchenmeister and Gottlob Ludwig Rabenhorst, Rabenhorst had, however, previously described a species in 1867 from the hairs of a wig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichosporonaceae ...
The Trichosporonaceae are a family of fungi in the order Trichosporonales. The family currently contains six genera. Species are not known to produce basidiocarps (fruit bodies), but exist as yeasts or produce septate hyphae with arthroconidia. Several species are human pathogens. References {{Taxonbar, from=Q10703252 Tremellomycetes Trichosporonaceae The Trichosporonaceae are a family of fungi in the order Trichosporonales. The family currently contains six genera. Species are not known to produce basidiocarps (fruit bodies), but exist as yeasts or produce septate hyphae with arthroconidia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Piedra
White piedra (or tinea blanca) is a mycosis of the hair caused by several species of fungi in the genus '' Trichosporon''. It is characterized by soft nodules composed of yeast cells and arthroconidia that encompass hair shafts. Diagnosis White piedra can occur on the hair of the scalp; ''Trichosporon ovoides'' is likely the cause in this case. White piedra on scalp hair is rarely caused by ''Trichosporon inkin''; pubic hair with white piedra is what ''T. inkin'' is mainly associated with. White piedra can occur on pubic hair; ''T. inkin'' likely causes this. ''Trichosporon beigelii'' Treatment There are several approaches to treat this infectious disease. One approach involves shaving the affected areas. Another approach involves the use of antifungal medication An antifungal medication, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis (thrush), serious sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichosporonosis
Trichosporonosis is a systemic disease associated with fungi A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from ... in the genus '' Trichosporon''. It can appear in patients who are immunosuppressed. References External links Tremellomycetes Animal fungal diseases Fungi and humans Mycosis-related cutaneous conditions {{Agaricomycotina-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skin Flora
Skin flora, also called skin microbiota, refers to microbiota (communities of microorganisms) that reside on the skin, typically human skin. Many of them are bacteria of which there are around 1,000 species upon human skin from nineteen phyla.Pappas S. (2009)Your Body Is a Wonderland ... of Bacteria ScienceNOW Daily News Most are found in the superficial layers of the epidermis and the upper parts of hair follicles. Skin flora is usually non-pathogenic, and either commensal (are not harmful to their host) or mutualistic (offer a benefit). The benefits bacteria can offer include preventing transient pathogenic organisms from colonizing the skin surface, either by competing for nutrients, secreting chemicals against them, or stimulating the skin's immune system. However, resident microbes can cause skin diseases and enter the blood system, creating life-threatening diseases, particularly in immunosuppressed people. A major non-human skin flora is ''Batrachochytrium dendrobatid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yeast
Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom. The first yeast originated hundreds of millions of years ago, and at least 1,500 species are currently recognized. They are estimated to constitute 1% of all described fungal species. Yeasts are unicellular organisms that evolved from multicellular ancestors, with some species having the ability to develop multicellular characteristics by forming strings of connected budding cells known as pseudohyphae or false hyphae. Yeast sizes vary greatly, depending on species and environment, typically measuring 3–4 µm in diameter, although some yeasts can grow to 40 µm in size. Most yeasts reproduce asexually by mitosis, and many do so by the asymmetric division process known as budding. With their single-celled growth habit, yeasts can be contrasted with molds, which grow hyphae. Fungal species that can take both forms (depending on temperature or other conditions) are ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleurococcus
''Pleurococcus'' is a genus of green algae in the family Chaetophoraceae Chaetophoraceae is a family of green algae in the order Chaetophorales. Genera * '' Arthrochaete'' * '' Caespitella'' * '' Cedercreutziella'' * '' Chaetomnion'' * '' Chaetonemopsis'' * '' Chaetophora'' * '' Chloroclonium'' * '' Chlorofilum'' * ... that are spherical in shape with a thick cell wall to protect themselves against excessive water loss. They can be found alone or in bunches together forming a slimy layer and grow on moist, dark patches of trees, rocks and soil. Species The genus consists of the following species: * '' Pleurococcus angulosus'' * '' Pleurococcus magnum'' * '' Pleurococcus mucosus'' * '' Pleurococcus rufescens'' * '' Pleurococcus vulgaris'' References External links * Chaetophorales genera Chaetophoraceae {{Chlorophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DNA Sequencing
DNA sequencing is the process of determining the nucleic acid sequence – the order of nucleotides in DNA. It includes any method or technology that is used to determine the order of the four bases: adenine, guanine, cytosine, and thymine. The advent of rapid DNA sequencing methods has greatly accelerated biological and medical research and discovery. Knowledge of DNA sequences has become indispensable for basic biological research, DNA Genographic Projects and in numerous applied fields such as medical diagnosis, biotechnology, forensic biology, virology and biological systematics. Comparing healthy and mutated DNA sequences can diagnose different diseases including various cancers, characterize antibody repertoire, and can be used to guide patient treatment. Having a quick way to sequence DNA allows for faster and more individualized medical care to be administered, and for more organisms to be identified and cataloged. The rapid speed of sequencing attained with modern D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladistic
Cladistics (; ) is an approach to biological classification in which organisms are categorized in groups (" clades") based on hypotheses of most recent common ancestry. The evidence for hypothesized relationships is typically shared derived characteristics ( synapomorphies'')'' that are not present in more distant groups and ancestors. However, from an empirical perspective, common ancestors are inferences based on a cladistic hypothesis of relationships of taxa whose character states can be observed. Theoretically, a last common ancestor and all its descendants constitute a (minimal) clade. Importantly, all descendants stay in their overarching ancestral clade. For example, if the terms ''worms'' or ''fishes'' were used within a ''strict'' cladistic framework, these terms would include humans. Many of these terms are normally used paraphyletically, outside of cladistics, e.g. as a 'grade', which are fruitless to precisely delineate, especially when including extinct species. R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustav Behrend
Gustav Behrend (10 January 1847 – 1925) was a German dermatologist who was a native of Neustettin (today- Szczecinek, Poland). In 1870 he received his medical doctorate at the University of Berlin, and during the Franco-Prussian War, he served as an assistant at the Reserve Lazareth in Berlin. In 1882 he became a lecturer at Berlin, and in 1891 was appointed chief physician at the Municipal Dispensary for Sexual Diseases. In 1897 he received the title of professor. Behrend specialized in the fields of dermatology and syphilology, also dealing with the subject of prostitution. He was the author of numerous publications, including a well-regarded textbook on skin diseases, titled ''Lehrbuch der Hautkrankheiten'' (1883). He also contributed a number of articles to Albert Eulenburg's ''Real-Encyclopädie der gesamten Heilkunde''. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type (biology)
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the International Code of Nomenclature for algae, fungi, and plants (ICN), the scientific name of every taxon is almost al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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