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Rhodotorula
''Rhodotorula'' is a genus of fungi in the class (biology), class Microbotryomycetes. Most species are known in their yeast states which produce orange to red colony (biology), colonies when grown on Sabouraud agar, Sabouraud's dextrose agar (SDA). The colour is the result of carotenoid pigments that the yeast creates to block out certain wavelengths of light (620–750 nm) that would otherwise be damaging to the cell. Hyphae, Hyphal states, formerly placed in the genus ''Rhodosporidium'', give rise to teliospores from which laterally septate basidia emerge, producing sessile basidiospores. Species occur worldwide and can be isolated from air, water, soil, and other substrates. Taxonomy The genus ''Rhodotorula'' was first created in 1927 by Canadian microbiologist Francis C. Harrison to accommodate red-pigmented yeasts (Ancient Greek ῥόδον (rhodon) means rose-coloured). Subsequent authors added over 150 additional species to the genus. Molecular phylogenetics, Molecula ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodotorula Mucilaginosa 400x Img430
''Rhodotorula'' is a genus of fungi in the class Microbotryomycetes. Most species are known in their yeast states which produce orange to red colonies when grown on Sabouraud's dextrose agar (SDA). The colour is the result of carotenoid pigments that the yeast creates to block out certain wavelengths of light (620–750 nm) that would otherwise be damaging to the cell. Hyphal states, formerly placed in the genus ''Rhodosporidium'', give rise to teliospores from which laterally septate basidia emerge, producing sessile basidiospores. Species occur worldwide and can be isolated from air, water, soil, and other substrates. Taxonomy The genus ''Rhodotorula'' was first created in 1927 by Canadian microbiologist Francis C. Harrison to accommodate red-pigmented yeasts (Ancient Greek ῥόδον (rhodon) means rose-coloured). Subsequent authors added over 150 additional species to the genus. Molecular research, based on cladistic analysis of DNA sequences, has, however, shown t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodotorula Glutinis
''Rhodotorula glutinis'' is the type species of the genus ''Rhodotorula'', a basidiomycetous genus of pink yeasts which contains 370 species. Heterogeneity of the genus has made its classification difficult with five varieties having been recognized; however, as of 2011, all are considered to represent a single taxon. The fungus is a common colonist of animals, foods and environmental materials. It can cause opportunistic infections, notably blood infection in the setting of significant underlying disease. It has been used industrially in the production of carotenoid pigments and as a biocontrol agent for post-harvest spoilage diseases of fruits. Growth and morphology ''Rhodotorula glutinis'' is an aerobic yeast characterized by pink, smooth colonies with a moist appearance. Reproduction is typically by multipolar budding although pseudohyphae are occasionally produced. Sexual reproduction is by basidiospores arising from a teliospore developed from a mycelial clamp connec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kriegeriales
The Kriegeriales are an order of fungi in the subdivision Pucciniomycotina. Most species are known only from their yeast states and can be found in a variety of habitats, ranging from arctic waters to tropical ferns. Hyphal states produce auricularioid (laterally septate) basidia. Taxonomy The order was described in 2013 based on evidence from DNA sequence data that showed that a newly discovered neotropical yeast, '' Meredithblackwellia eburnea'', was closely related to several species in the genera '' Kriegeria'', '' Camptobasidium'' and '' Glaciozyma''.Toome M, Roberson RW, Aime MC. 2012. ''Meredithblackwellia eburnea'' sp. et gen. nov., Kriegeriaceae fam. nov. and Kriegeriales ord. nov. – toward resolving higher-level classification in Microbotryomycetes. Mycologia 105: DOI: 10.3852/12-251 Further research added the new genera '' Phenoliferia'' and '' Yamadamyces'' to accommodate several yeast species formerly placed in ''Rhodotorula''. Morphology Most species of Kriegeri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yeast
Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom (biology), 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. Some yeast species have the ability to develop multicellular characteristics by forming strings of connected budding cells known as pseudohyphae or false hyphae, or quickly evolve into a Multicellular organism, multicellular cluster with specialised Organelle, cell organelles function. Yeast sizes vary greatly, depending on species and environment, typically measuring 3–4 micrometre, μm in diameter, although some yeasts can grow to 40 μm in size. Most yeasts reproduce asexual reproduction, 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 Mold (fungus), molds, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microbotryomycetes
The Microbotryomycetes are a class of fungi in the subdivision Pucciniomycotina of the Basidiomycota. The class currently contains eight orders, plus three additional, unassigned families ( Chrysozymaceae, Colacogloeaceae, and Mycogloiocolacaceae), plus seven additional, unassigned genera ('' Oberwinklerozyma'', '' Pseudohyphozyma'', '' Reniforma'', '' Spencerozyma'', '' Trigonosporomyces'', '' Vonarxula'', and '' Yunzhangia''). Many species are known only from their yeast Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom (biology), kingdom. The first yeast originated hundreds of millions of years ago, and at least 1,500 species are currently recognized. They are est ... states. Species with hyphal states typically produce auricularioid (laterally septate) basidia and are often parasitic on other fungi or plants. Several species in the genera '' Rhodotorula'' and '' Sporobolomyces'' are opportunistic human pathogens. Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sensu Lato
''Sensu'' is a Latin word meaning "in the sense of". It is used in a number of fields including biology, geology, linguistics, semiotics, and law. Commonly it refers to how strictly or loosely an expression is used in describing any particular concept, but it also appears in expressions that indicate the convention or context of the usage. Common qualifiers ''Sensu'' is the ablative case of the noun ''sensus'', here meaning "sense". It is often accompanied by an adjective (in the same case). Three such phrases are: * – "in the strict sense", abbreviation ''s.s.'' or ''s.str.''; * – "in the broad sense", abbreviation ''s.l.''; * – "in a relaxed, generous (or 'ample') sense", a similar meaning to ''sensu lato''. Søren Kierkegaard uses the phrase ''sensu eminenti'' to mean "in the pre-eminent r most important or significantsense". When appropriate, comparative and superlative adjectives may also be used to convey the meaning of "more" or "most". Thus ''sensu stricto' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyphyletic
A polyphyletic group is an assemblage that includes organisms with mixed evolutionary origin but does not include their most recent common ancestor. The term is often applied to groups that share similar features known as Homoplasy, homoplasies, which are explained as a result of convergent evolution. The arrangement of the members of a polyphyletic group is called a polyphyly .. [Source for pronunciation.] It is contrasted with monophyly and paraphyly. For example, the biological characteristic of warm-bloodedness evolved separately in the ancestors of mammals and the ancestors of birds; "warm-blooded animals" is therefore a polyphyletic grouping. Other examples of polyphyletic groups are algae, C4 photosynthesis, C4 photosynthetic plants, and Xenarthra#Evolutionary relationships, edentates. Many taxonomists aim to avoid homoplasies in grouping taxa together, with a goal to identify and eliminate groups that are found to be polyphyletic. This is often the stimulus for major re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agaricostilbales
The Agaricostilbales are an order of fungi in the class Agaricostilbomycetes. The order consists of six families and 15 genera. Agaricostilbales was originally described in 1989 by Franz Oberwinkler and Robert Bauer with just two families, the Agaricostilbaceae and the Chionosphaeraceae. Molecular research, based on cladistic analysis of DNA sequences, has subsequently added additional families. Many species are known only from their yeast states. Where known, basidiocarps In fungi, a basidiocarp, basidiome, or basidioma () is the sporocarp of a basidiomycete, the multicellular structure on which the spore-producing hymenium is borne. Basidiocarps are characteristic of the hymenomycetes; rusts and smuts do no ... (fruitbodies) are small and stilboid (pin-like). Species in the family Crittendeniaceae are lichenicolous. References External links Basidiomycota orders Taxa named by Franz Oberwinkler Taxa described in 1989 {{Basidiomycetes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystobasidiales
The Cystobasidiales are an order of fungi in the class Cystobasidiomycetes. The order currently consists of a single family ( Cystobasidiaceae) and two genera as yet unassigned to a family ('' Begerowomyces'' and '' Robertozyma''). Many species in the Cystobasidiales are known only from their yeast states. Where known, basidiocarps (fruit bodies) have auricularioid (laterally septate) basidia A basidium (: basidia) is a microscopic spore-producing structure found on the hymenophore of reproductive bodies of basidiomycete fungi. The presence of basidia is one of the main characteristic features of the group. These bodies are also ... and occur as parasites on or in the fruit bodies of other fungi. References {{Taxonbar, from=Q10465216 Pucciniomycotina Basidiomycota orders Taxa described in 2006 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filobasidiales
The Filobasidiales are an order in the fungal class Tremellomycetes. The order contains two families and seven genera Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s .... References Tremellomycetes Basidiomycota orders {{Agaricomycotina-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystofilobasidiales
The Cystofilobasidiales are an order of fungi in the class Tremellomycetes of the Basidiomycota. They usually exhibit a life phase of free-living yeasts. The order contains two families with seven genera and some 25 species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), .... References Tremellomycetes Basidiomycota orders {{basidiomycota-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
