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Death Cap
''Amanita phalloides'' ( ), commonly known as the death cap, is a deadly poisonous basidiomycete fungus and mushroom, one of many in the genus ''Amanita''. Originating in Europe but later introduced to other parts of the world since the late twentieth century, ''A. phalloides'' forms ectomycorrhizas with various broadleaved trees. In some cases, the death cap has been introduced to new regions with the cultivation of non-native species of oak, chestnut, and Pinus, pine. The large fruiting bodies (mushrooms) appear in summer and autumn; the Pileus (mycology), caps are generally greenish in colour with a white stipe (mycology), stipe and Lamella (mycology), gills. The cap colour is variable, including white forms, and is thus not a reliable identifier. These toxic mushrooms resemble several edible species (most notably Amanita caesarea, Caesar's mushroom and the Volvariella volvacea, straw mushroom) commonly consumed by humans, increasing the risk of accidental Mushroom po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piacenza
Piacenza (; ; ) is a city and (municipality) in the Emilia-Romagna region of Northern Italy, and the capital of the province of Piacenza, eponymous province. As of 2022, Piacenza is the ninth largest city in the region by population, with more than 102,000 inhabitants. Westernmost major city of the region of Emilia-Romagna, it has strong relations with Lombardy, with which it borders, and in particular with Milan. It was defined by Leonardo da Vinci as a "Land of passage" in his Codex Atlanticus, by virtue of its crucial geographical location. This strategic location would influence the history of Piacenza significantly at several times. Piacenza integrates characteristics of the nearby Ligurian and Piedmontese territories added to a prevalent Lombard influence, favored by communications with the nearby metropolis, which attenuate its Emilia (region), Emilian footprint. Piacenza is located at a major crossroads at the intersection of Route E35/A1 between Bologna and Milan, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amatoxin
Amatoxins are a subgroup of at least nine related cyclic peptide toxins found in three genera of deadly poisonous mushrooms (''Amanita'', '' Galerina'' and '' Lepiota'') and one species of the genus '' Pholiotina''. Amatoxins are very potent, as little as half a mushroom cap can cause severe liver injury if swallowed. Structure The compounds have a similar structure, that of eight amino-acid residues arranged in a conserved macrobicyclic motif (an overall pentacyclic structure when counting the rings inherent in the proline and tryptophan-derived residues); they were isolated in 1941 by Heinrich O. Wieland and Rudolf Hallermayer. All amatoxins are cyclic peptides that are synthesized as 35-amino-acid proproteins, from which the final eight amino acids are cleaved by a prolyl oligopeptidase. The schematic amino acid sequence of amatoxins is Ile-Trp-Gly-Ile-Gly-Cys-Asn-Pro with cross-linking between Trp and Cys via the sulfoxide (S=O) moiety and hydroxylation in variants of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phallus (fungus)
The genus ''Phallus'', commonly known as stinkhorns, is a group of basidiomycetes which produce a phallic, often foul-scented mushroom, from which their name is derived. The genus has a widespread distribution and, according to a 2008 estimate, contains 18 species. They belong to the family Phallaceae in the order Phallales. The best known species (and type species) is the common stinkhorn (''Phallus impudicus''). Taxonomy The genus was first written about by the Dutch botanist Hadrianus Junius in a 1564 booklet about the penis-shaped organism. He says:... I am not sure that our Phallus falls within the class of the fungi. I will not definitely decide to place it there because I do not want to make a judgment before others who know more about the matter. The lightness, however, and looseness of the substance and (a necessary condition for the existence of sponges) the sour sap of the moist earth where it was born, all bear witness that it belongs to the family of the fungi. Howe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phallus
A phallus (: phalli or phalluses) is a penis (especially when erect), an object that resembles a penis, or a mimetic image of an erect penis. In art history, a figure with an erect penis is described as ''ithyphallic''. Any object that symbolically—or, more precisely, iconically—resembles a penis may also be referred to as a phallus; however, such objects are more often referred to as being phallic (as in "phallic symbol"). Such symbols often represent fertility and cultural implications that are associated with the male sexual organ, as well as the male orgasm. Etymology The term is a loanword from Latin ''phallus'', itself borrowed from Greek (''phallos''), which is ultimately a derivation from the Proto-Indo-European root *''bʰel''- "to inflate, swell". Compare with Old Norse (and modern Icelandic) ''boli'', "bull", Old English ''bulluc'', "bullock", Greek , "whale". Archaeology The Hohle phallus, a 28,000-year-old siltstone phallus discovered in the Hohle Fels ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Name
In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammar, Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (often shortened to just "binomial"), a binomen, name, or a scientific name; more informally, it is also called a Latin name. In the International Code of Zoological Nomenclature (ICZN), the system is also called nomenclature, with an "n" before the "al" in "binominal", which is a typographic error, meaning "two-name naming system". The first part of the name – the ''generic name (biology), generic name'' – identifies the genus to which the species belongs, whereas the second part – the specific name or specific epithet – distinguishes the species within the genus. For example, modern humans belong to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Description
A species description is a formal scientific description of a newly encountered species, typically articulated through a scientific publication. Its purpose is to provide a clear description of a new species of organism and explain how it differs from species that have been previously described or related species. For a species to be considered valid, a species description must follow established guidelines and naming conventions dictated by relevant nomenclature codes. These include the International Code of Zoological Nomenclature (ICZN) for animals, the International Code of Nomenclature for algae, fungi, and plants (ICN) for plants, and the International Committee on Taxonomy of Viruses (ICTV) for viruses. A species description often includes photographs or other illustrations of type material and information regarding where this material is deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christopher Merrett
Christopher Merret FRSFRCP(16 February 1614/1615 – 19 August 1695), also spelt Merrett, was an English physician and scientist. He was the first to document the deliberate addition of sugar for the production of sparkling wine, and produced the first lists of British birds and butterflies. Life Merret was born in Winchcombe, Gloucestershire on 16 February; Hunter gives the year of his birth as 1615, which may be 1614 Old Style. In 1632 he went up to Gloucester Hall, Oxford (which later became Worcester College); he received his BA from Oriel in 1635, and his BMed and DMed from Gloucester Hall in 1636 and 1643 respectively. Merret then practised medicine in London, becoming Fellowof the Royal College of Physicians in 1651. Three years later he moved to the RCP's premises at Amen Corner near St Paul's Cathedral, as the first Harveian Librarian, for which he received room and board and a small stipend. But disaster struck in 1666 with the Great Fire of London, which destr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Browne
Sir Thomas Browne ( "brown"; 19 October 160519 October 1682) was an English polymath and author of varied works which reveal his wide learning in diverse fields including science and medicine, religion and the esoteric. His writings display a deep curiosity towards the Nature (philosophy), natural world, influenced by the Scientific Revolution of Francis Bacon, Baconian enquiry and are permeated by references to Classics, Classical and Bible, Biblical sources as well as the idiosyncrasies of his own personality. Although often described as suffused with melancholia, Browne's writings are also characterised by wit and subtle humour, while his literary style is varied, according to genre, resulting in a rich, unique prose which ranges from rough notebook observations to polished Baroque eloquence. Biography Early life Thomas Browne was born in the parish of St Michael-le-Querne, St Michael, Cheapside, in London on 19 October 1605. He was the youngest child of Thomas Browne, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area around Rome, Italy. Through the expansion of the Roman Republic, it became the dominant language in the Italian Peninsula and subsequently throughout the Roman Empire. It has greatly influenced many languages, Latin influence in English, including English, having contributed List of Latin words with English derivatives, many words to the English lexicon, particularly after the Christianity in Anglo-Saxon England, Christianization of the Anglo-Saxons and the Norman Conquest. Latin Root (linguistics), roots appear frequently in the technical vocabulary used by fields such as theology, List of Latin and Greek words commonly used in systematic names, the sciences, List of medical roots, suffixes and prefixes, medicine, and List of Latin legal terms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kidney Failure
Kidney failure, also known as renal failure or end-stage renal disease (ESRD), is a medical condition in which the kidneys can no longer adequately filter waste products from the blood, functioning at less than 15% of normal levels. Kidney failure is classified as either acute kidney failure, which develops rapidly and may resolve; and chronic kidney failure, which develops slowly and can often be irreversible. Symptoms may include leg swelling, feeling tired, vomiting, loss of appetite, and confusion. Complications of acute and chronic failure include uremia, hyperkalemia, and volume overload. Complications of chronic failure also include heart disease, high blood pressure, and anaemia. Causes of acute kidney failure include low blood pressure, blockage of the urinary tract, certain medications, muscle breakdown, and hemolytic uremic syndrome. Causes of chronic kidney failure include diabetes, high blood pressure, nephrotic syndrome, and polycystic kidney diseas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liver Failure
Liver failure is the inability of the liver to perform its normal synthetic and metabolic functions as part of normal physiology. Two forms are recognised, acute and chronic (cirrhosis). Recently, a third form of liver failure known as acute-on-chronic liver failure (ACLF) is increasingly being recognized. Acute Acute liver failure is defined as "the rapid development of hepatocellular dysfunction, specifically coagulopathy and mental status changes (encephalopathy) in a patient without known prior liver disease".:1557 The disease process is associated with the development of a coagulopathy of liver aetiology, and clinically apparent altered level of consciousness due to hepatic encephalopathy. Several important measures are immediately necessary when the patient presents for medical attention. The diagnosis of acute liver failure is based on a physical exam, laboratory findings, patient history, and past medical history to establish mental status changes, coagulopathy, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
α-Amanitin
α-Amanitin (''alpha''-Amanitin) is a cyclic peptide of eight amino acids. It is possibly the most deadly of all the amatoxins, toxins found in several species of the mushroom genus ''Amanita'', one being the death cap (''Amanita phalloides'') as well as the destroying angel, a complex of similar species, principally '' A. virosa'' and '' A. bisporigera''. It is also found in the mushrooms '' Galerina marginata'', '' Lepiota subincarnata'' and '' Conocybe filaris''. The oral of amanitin is 100 μg/kg for rats. Unlike most cyclic peptides, amatoxins (and phallotoxins) are synthesized on ribosomes. The genes encoding the proprotein for α-amanitin belong to the same family as those that encode for phallacidin (a phallotoxin). Scientific use α-Amanitin is a selective inhibitor of RNA polymerase II and III but not I. This mechanism makes it a deadly toxin. α-Amanitin can also be used to determine which types of RNA polymerase are present. This is done by testing the sen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
