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Wickerhamomyces
''Wickerhamomyces'' is a genus of fungi within the Saccharomycetales order. It is placed within the familyof Phaffomycetaceae. Description The fungi has asexual reproduction and that budding is multilateral on a narrow base. The cells are spherical, ovoid, or elongate in shape. Pseudohyphae and true hyphae (a long, branching, filamentous structure) are produced by some species. In sexual reproduction, it is found that the asci (spore bearing cell) may be unconjugated or show conjugation between a cell and its bud or between independent cells. Some species are heterothallic (species have sexes that reside in different individuals). Asci may be persistent or deliquescent and form one to four ascospores that may be hat-shaped or spherical with an equatorial ledge. Taxonomy The genus name of ''Wickerhamomyces'' is in honour of Lynferd J. Wickerham (1910-1990), who was an American botanist and taxonomist, who worked at the National Center for Agricultural Utilization Research. In 1970, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wickerhamomycetaceae
The Wickerhamomycetaceae are a family of yeasts in the order Saccharomycetales that reproduce by budding. Species in the family have a widespread distribution. Genus ''Wickerhamomyces'' used to be placed within Phaffomycetaceae family, until 2008 when it was separated and placed within its own order Wickerhamomycetaceae. Beneficially, various Wickerhamomyces species have been used in a number of biotechnologically applications, such as in the environment, food, beverage industries, (including wine making, ) biofuel, medicine and agriculture. Description The fungi has asexual reproduction and that budding is multilateral on a narrow base. The cells are spherical, ovoid, or elongate in shape. Pseudohyphae and true hyphae (a long, branching, filamentous structure) are produced by some species. In sexual reproduction, it is found that the asci (spore bearing cell) may be unconjugated or show conjugation between a cell and its bud or between independent cells. Some species are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phaffomycetaceae
The Phaffomycetaceae are a family of yeasts in the order Saccharomycetales that reproduce by budding. Species in the family have a widespread distribution. The family are named after ''Phaffomyces'' but it was placed in the Pichiaceae fungi family. It is found to be linked to Equine grass sickness (EGS) via pasture mycotoxicosis, which comprises a very large and diverse population of fungi. It is found in silage, including lactic acid bacteria, yeasts and molds. It is found in fermented Ethiopian honey wine, ''Tej, and can affect bagasse (the waste product) of sugarcane, with other yeast fungi. Genera According to GBIF; Figures in brackets are approx. how many species per genus. Genus '' Wickerhamomyces'' used to be placed within Phaffomycetaceae, until 2008 when it was separated and placed within its own order Wickerhamomycetaceae The Wickerhamomycetaceae are a family of yeasts in the order Saccharomycetales that reproduce by budding. Species in the family have a widespr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pichia
''Pichia'' (''Hansenula'' and ''Hyphopichia'' are obsolete synonyms) is a genus of yeasts in the family Pichiaceae with spherical, elliptical, or oblong acuminate cells. ''Pichia'' is a teleomorph, and forms hat-shaped, hemispherical, or round ascospores during sexual reproduction. The anamorphs of some ''Pichia'' species are ''Candida (genus), Candida'' species. The asexual reproduction is by multilateral budding. The genus name of ''Pichia'' is in honour of Pico Pichi (1862-1933), who was an Italian botanist and Professor of natural history and plant pathology at a viticulture school in the town of Conegliano in the Province of Treviso. The genus was circumscription (taxonomy), circumscribed by Emil Christian Hansen in Centralbl. Bakteriol., 2. Abt., 12 on pages 533-538 in 1904. Lactose is neither fermented nor assimilated by these species. The behaviour with regard to other carbohydrates is dependent on the different species. Nitrate is always assimilated. More than 100 spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 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'' (''t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circumscription (taxonomy)
In biological taxonomy, circumscription is the content of a taxon, that is, the delimitation of which subordinate taxa are parts of that taxon. If we determine that species X, Y, and Z belong in Genus A, and species T, U, V, and W belong in Genus B, those are our circumscriptions of those two genera. Another systematist might determine that T, U, V, W, X, Y, and Z all belong in genus A. Agreement on circumscriptions is not governed by the Codes of Zoological or Botanical Nomenclature, and must be reached by scientific consensus. A goal of biological taxonomy is to achieve a stable circumscription for every taxon. This goal conflicts, at times, with the goal of achieving a natural classification that reflects the evolutionary history of divergence of groups of organisms. Balancing these two goals is a work in progress, and the circumscriptions of many taxa that had been regarded as stable for decades are in upheaval in the light of rapid developments in molecular phylogenetics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chhaang
Chhaang or chhyang (, ne, छ्याङ, new, थो:) is a Nepalese and Tibetan alcoholic beverage also popular in parts of the eastern Himalayas, Yakkha, Limbu, Dura, Newar, Sunuwar, Rai, Gurung, Magar, Sherpa, Tamang and Lepcha communities. Among the Lepcha, it is called Chi. It is also known as jaarh in Nepal. Geographical prevalence Chhaang is consumed by ethnically Tibetan and Nepalese, and to a lesser degree, by the neighboring nations of India, Pakistan and Bhutan. It is usually drunk at room temperature in summer, but is often served piping-hot in brass bowls or wooden mugs when the weather is colder. The Limbu people of eastern Nepal call the drink Tongba. Ingredients and drinking ''Chhaang'' is a relative of beer. Barley, millet (finger-millet) or rice grains are used to brew the drink. Semi-fermented seeds of millet are served, stuffed in a barrel of bamboo called a ''dhungro''. Boiling water is then poured in and sipped through a narrow-bore bamboo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Budbod
Suman or budbud is a rice cake originating in the Philippines. It is made from glutinous rice cooked in coconut milk, often wrapped in banana leaves, coconut leaves, or ''buli'' or ''buri'' palm (''Corypha'') leaves for steaming. It is usually eaten sprinkled with sugar or laden with latik. A widespread variant of ''suman'' uses cassava instead of glutinous rice. Varieties There are numerous varieties of suman, with almost every town or locality having its speciality. Some are described below: *''Binuo'' (or ''Suman sa Binuo'') – A rare variety of suman, the glutinous rice is soaked, milled, mixed with coconut milk and sugar, wrapped in the leaves of the Tagbak plant, and steamed. The leaves give this variety of suman a uniquely balmy, minty flavor, and the suman itself is chewier than the whole-rice varieties. *''Kurukod'' or ''kurukud'' - A type of cassava suman with a filling of sweetened grated coconut (''bukayo''). *''Suman sa Ibus'' (or simply ''Ibus'') – A ub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glucanase
Glucanases are enzymes that break down large polysaccharides via hydrolysis. The product of the hydrolysis reaction is called a glucan, a linear polysaccharide made of up to 1200 glucose monomers, held together with glycosidic bonds. Glucans are abundant in the endosperm cell walls of cereals such as barley, rye, sorghum, rice, and wheat. Glucanases are also referred to as lichenases, hydrolases, glycosidases, glycosyl hydrolases, and/or laminarinases. Many types of glucanases share similar amino acid sequences but vastly different substrates. Of the known endo-glucanases, 1,3-1,4-β-glucanase is considered the most active. Structure β-glucanases The secondary and tertiary structures of β-glucanases involves the stacking of multiple β-sheets, each of which are made of several anti-parallel strands that bend and form a cleft crossing the active site of the enzyme. This type of structure has been called the "jelly roll fold." Some common β-glucanases * 1,3-β-glucana ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gonads
A gonad, sex gland, or reproductive gland is a mixed gland that produces the gametes and sex hormones of an organism. Female reproductive cells are egg cells, and male reproductive cells are sperm. The male gonad, the testicle, produces sperm in the form of spermatozoa. The female gonad, the ovary, produces egg cells. Both of these gametes are haploid cells. Some hermaphroditic animals have a type of gonad called an ovotestis. Evolution It is hard to find a common origin for gonads, but gonads most likely evolved independently several times. Regulation The gonads are controlled by luteinizing hormone and follicle-stimulating hormone, produced and secreted by gonadotropes or gonadotrophins in the anterior pituitary gland. This secretion is regulated by gonadotropin-releasing hormone produced in the hypothalamus. Development Gonads start developing as a common primordium (an organ in the earliest stage of development), in the form of genital ridges, which are only late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anopheles
''Anopheles'' () is a genus of mosquito first described and named by J. W. Meigen in 1818. About 460 species are recognised; while over 100 can transmit human malaria, only 30–40 commonly transmit parasites of the genus ''Plasmodium'', which cause malaria in humans in endemic areas. '' Anopheles gambiae'' is one of the best known, because of its predominant role in the transmission of the most dangerous malaria parasite species (to humans) – '' Plasmodium falciparum''. The name comes from the Ancient Greek word 'useless', derived from , 'not', 'un-' and 'profit'. Mosquitoes in other genera (''Aedes'', ''Culex'', '' Culiseta'', '' Haemagogus'', and ''Ochlerotatus'') can also serve as vectors of disease agents, but not human malaria. Evolution The ancestors of ''Drosophila'' and the mosquitoes diverged . The culicine and ''Anopheles'' clades of mosquitoes diverged between and . The Old and New World ''Anopheles'' species subsequently diverged between and . '' Anophel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aedes
''Aedes'' is a genus of mosquitoes originally found in tropical and subtropical zones, but now found on all continents except perhaps Antarctica. Some species have been spread by human activity: ''Aedes albopictus'', a particularly invasive species, was spread to the New World, including the United States, in the 1980s, by the used-tire trade. First described and named by German entomologist Johann Wilhelm Meigen in 1818, the generic name comes from the Ancient Greek ἀηδής, ''aēdēs'', meaning "unpleasant" or "odious". The type species for ''Aedes'' is ''Aedes cinereus''.. Systematics and phylogeny The genus was named by Johann Wilhelm Meigen in 1818. The generic name comes from the Ancient Greek ἀηδής, ''aēdēs'', meaning "unpleasant" or "odious". As historically defined, the genus contains over 700 species (see the list of ''Aedes'' species). The genus has been divided into several subgenera (''Aedes'', '' Diceromyia'', '' Finlaya'', ''Stegomyia'', etc.) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Candida (fungus)
''Candida'' is a genus of yeasts and is the most common cause of fungal infections worldwide. Many species are harmless commensals or endosymbionts of hosts including humans; however, when mucosal barriers are disrupted or the immune system is compromised they can invade and cause disease, known as an opportunistic infection. Candida is located on most mucosal surfaces and mainly the gastrointestinal tract, along with the skin. ''Candida albicans'' is the most commonly isolated species and can cause infections (candidiasis or thrush) in humans and other animals. In winemaking, some species of ''Candida'' can potentially spoil wines. Many species are found in gut flora, including ''C. albicans'' in mammalian hosts, whereas others live as endosymbionts in insect hosts. Systemic infections of the bloodstream and major organs ( candidemia or invasive candidiasis), particularly in patients with an impaired immune system (immunocompromised), affect over 90,000 people a year in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
