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Zwackhiomyces Polischukii
''Zwackhiomyces polischukii'' is a species of lichenicolous (lichen-eating) fungus in the family Xanthopyreniaceae. It occurs in Ukraine, where it parasitises the crustose lichens '' Bacidia fraxinea'' and '' B. rubella''. Taxonomy The fungus was formally described as a new species in 2017 by Valeriy Darmostuk and Alexander Khodosovtsev. The type specimen was collected from a western slope of Mount Castel (Autonomous Republic of Crimea) at an altitude of ; there it was found growing on thalli of '' Bacidia rubella'', which itself was growing on ''Carpinus betulus''. The species epithet ''polischukii'' honours Ukrainian virologist, professor Valeriy Polischuk. Description ''Zwackhiomyces polischukii'' has perithecioid ascomata that are initially immersed in the host thallus, but are only partially immersed in maturity. These small (typically 170–190 μm in diameter) black structures are more or less spherical, and are either scattered throughout the thallus su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichenicolous Fungus
A lichenicolous fungus is a parasitic fungus that only lives on lichen as the host. A lichenicolous fungus is not the same as the fungus that is the component of the lichen, which is known as a lichenized fungus. They are most commonly specific to a given fungus as the host, but they also include a wide range of pathogens, saprotrophs, and commensals. It is estimated there are 3000 species of lichenicolous fungi. More than 1800 species are already described among the Ascomycota and Basidiomycota.Lichenicolous Fungi: Interactions, Evolution, and Biodiversity, Lawrey, James D.; Diederich, Paul. The Bryologist 106(1), pp. 80 120, 2003/ref> More than 95% of lichenicolous fungi described as of 2003 are ascomycetes, in 7 class (biology), classes and 19 order (biology), orders. Although basidiomycetes have less than 5% of lichenicolous lichen species, they represent 4 classes and 8 orders. Many lichenicolous species have yet to be assigned a phylogenetic position as of 2003. See also * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascus
An ascus (; ) is the sexual spore-bearing cell produced in ascomycete fungi. Each ascus usually contains eight ascospores (or octad), produced by meiosis followed, in most species, by a mitotic cell division. However, asci in some genera or species can occur in numbers of one (e.g. ''Monosporascus cannonballus''), two, four, or multiples of four. In a few cases, the ascospores can bud off conidia that may fill the asci (e.g. ''Tympanis'') with hundreds of conidia, or the ascospores may fragment, e.g. some ''Cordyceps'', also filling the asci with smaller cells. Ascospores are nonmotile, usually single celled, but not infrequently may be coenocytic (lacking a septum), and in some cases coenocytic in multiple planes. Mitotic divisions within the developing spores populate each resulting cell in septate ascospores with nuclei. The term ocular chamber, or oculus, refers to the epiplasm (the portion of cytoplasm not used in ascospore formation) that is surrounded by the "bourrelet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi Of Europe
A fungus (plural, : fungi or funguses) is any member of the group of Eukaryote, eukaryotic organisms that includes microorganisms such as yeasts and Mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as a Kingdom (biology), kingdom, separately from the other eukaryotic kingdoms, which by one traditional classification include Plantae, Animalia, Protozoa, and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of motility, mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single gro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi Described In 2017
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 the other eukaryotic kingdoms, which by one traditional classification include Plantae, Animalia, Protozoa, and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related organisms, named the ''Eumycota'' (''true fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zwackhiomyces
''Zwackhiomyces'' is a genus of lichenicolous fungi in the family Xanthopyreniaceae. The genus was circumscribed by Martin Grube and Josef Hafellner in 1990, with '' Zwackhiomyces coepulonus'' assigned as the type species. The genus name of ''Zwackhiomyces'' is in honour of Philipp Franz Wilhelm von Zwackh-Holzhausen (1826–1903), who was a German botanist (Lichenology and Mycology). He was also a Military Officer as well as being a landowner near Heidelberg. He was financially independent and owned large Herbarium. Species As accepted by Species Fungorum; *'' Zwackhiomyces aspiciliae'' – Turkey *'' Zwackhiomyces berengerianus'' *'' Zwackhiomyces calcariae'' *'' Zwackhiomyces calcisedus'' *'' Zwackhiomyces cervinae'' *'' Zwackhiomyces coepulonus'' *'' Zwackhiomyces diederichii'' *'' Zwackhiomyces dispersus'' *'' Zwackhiomyces echinulatus'' *'' Zwackhiomyces heppiae'' *'' Zwackhiomyces immersae'' *'' Zwackhiomyces lacustris'' *''Zwackhiomyces lecanorae'' *'' Zwack ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maple
''Acer'' () is a genus of trees and shrubs commonly known as maples. The genus is placed in the family Sapindaceae.Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 9, June 2008 nd more or less continuously updated since http://www.mobot.org/MOBOT/research/APweb/. There are approximately 132 species, most of which are native to Asia, with a number also appearing in Europe, northern Africa, and North America. Only one species, ''Acer laurinum'', extends to the Southern Hemisphere.Gibbs, D. & Chen, Y. (2009The Red List of Maples Botanic Gardens Conservation International (BGCI) The type species of the genus is the sycamore maple, '' Acer pseudoplatanus'', the most common maple species in Europe.van Gelderen, C. J. & van Gelderen, D. M. (1999). ''Maples for Gardens: A Color Encyclopedia'' Maples usually have easily recognizable palmate leaves ('' Acer negundo'' is an exception) and distinctive winged fruits. The closest relatives of the maples are the horse c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podilskyi District
The Podilskyi District ( uk, Подільський район) is an urban district of Kyiv, the capital of Ukraine. Its population was 177,563 at the 2001 census. The district takes its name from the historic Podil neighborhood which it includes within its boundaries. The Podilskyi District as an administrative entity was formed in 1921 on one of the largest historical neighborhoods in Kyiv. In May 2001 the Podilskyi District celebrated the 80th anniversary of its foundation. The district remains one of the main business, transport, and industrial areas of Kyiv. There are currently 50 large industrial organizations based here. Although most of the industrial sites are phased out of the region, they dominate the adjacent neighborhoods to the north, named today "Podilsko-Kurenivskiy promraion". Neighborhoods The Podilskyi District includes the following historical neighborhoods of Kyiv within its boundaries: * Podil * Vynohradar * Kurenivka * Petrivka (Pochayna) * Nyvky * R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bakhchysarai
Bakhchysarai ( crh, Bağçasaray, italic=yes; russian: Бахчисара́й; ua, Бахчисара́й; tr, Bahçesaray) is a town in Crimea, a territory recognized by a majority of countries as part of Ukraine and annexed by Russia as the Republic of Crimea. It is the administrative center of the Bakhchysarai Raion (district), as well as the former capital of the Crimean Khanate. Its main landmark is Hansaray, the only extant palace of the Crimean Khans, currently open to tourists as a museum. Population: Geography Bakhchysarai lies in a narrow valley of the river, about 30 Kilometers south-west of Simferopol. History The earliest known artifacts of human provenance found in the valley date from the Mesolithic period. Settlements have existed in the valley since Late Antiquity. The founding of Bakhchysarai was preceded by the Qırq Yer fortress (modern Çufut Qale), Salaçıq, and Eski Yurt — these have become incorporated into the urban area of modern Bakhchysarai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muellerella Hospitans
''Muellerella hospitans'' is a species of lichenicolous fungus in the family Verrucariaceae The Verrucariaceae are a family of mostly lichenised fungi in the order Verrucariales. The lichen-forming species, which comprise the vast majority of the family, have a wide variety of thallus forms, and include crustose (crust-like), foliose ( .... It is known to infect the lichen '' Bacidia rubella''. References Verrucariales Fungi described in 1863 Lichenicolous fungi Taxa named by Ernst Stizenberger Fungus species {{Eurotiomycetes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Host (biology)
In biology and medicine, a host is a larger organism that harbours a smaller organism; whether a parasite, parasitic, a mutualism (biology), mutualistic, or a commensalism, commensalist ''guest'' (symbiont). The guest is typically provided with nourishment and shelter. Examples include animals playing host to parasitic worms (e.g. nematodes), cell (biology), cells harbouring pathogenic (disease-causing) viruses, a Fabaceae, bean plant hosting mutualistic (helpful) Rhizobia, nitrogen-fixing bacteria. More specifically in botany, a host plant supplies nutrient, food resources to micropredators, which have an evolutionarily stable strategy, evolutionarily stable relationship with their hosts similar to ectoparasitism. The host range is the collection of hosts that an organism can use as a partner. Symbiosis Symbiosis spans a wide variety of possible relationships between organisms, differing in their permanence and their effects on the two parties. If one of the partners in an ass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Septum
In biology, a septum (Latin for ''something that encloses''; plural septa) is a wall, dividing a cavity or structure into smaller ones. A cavity or structure divided in this way may be referred to as septate. Examples Human anatomy * Interatrial septum, the wall of tissue that is a sectional part of the left and right atria of the heart * Interventricular septum, the wall separating the left and right ventricles of the heart * Lingual septum, a vertical layer of fibrous tissue that separates the halves of the tongue. *Nasal septum: the cartilage wall separating the nostrils of the nose * Alveolar septum: the thin wall which separates the alveoli from each other in the lungs * Orbital septum, a palpebral ligament in the upper and lower eyelids * Septum pellucidum or septum lucidum, a thin structure separating two fluid pockets in the brain * Uterine septum, a malformation of the uterus * Vaginal septum, a lateral or transverse partition inside the vagina * Intermuscular sep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellipsoid
An ellipsoid is a surface that may be obtained from a sphere by deforming it by means of directional scalings, or more generally, of an affine transformation. An ellipsoid is a quadric surface; that is, a surface that may be defined as the zero set of a polynomial of degree two in three variables. Among quadric surfaces, an ellipsoid is characterized by either of the two following properties. Every planar cross section is either an ellipse, or is empty, or is reduced to a single point (this explains the name, meaning "ellipse-like"). It is bounded, which means that it may be enclosed in a sufficiently large sphere. An ellipsoid has three pairwise perpendicular axes of symmetry which intersect at a center of symmetry, called the center of the ellipsoid. The line segments that are delimited on the axes of symmetry by the ellipsoid are called the ''principal axes'', or simply axes of the ellipsoid. If the three axes have different lengths, the figure is a triaxial ellipsoid (r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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