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Hydnellum Scabrosum
''Hydnellum scabrosum'', also called bitter tooth or bitter hedgehog, is a species of tooth fungus in the family Bankeraceae. Taxonomy It was originally described by Swedish botanist Elias Fries as ''Hydnum scabrosum'' in 1836. Finnish mycologist Petter Karsten moved it to the genus ''Sarcodon'' in 1881. This species remained as ''Sarcodon scabrosus'' until 2019, when a molecular analysis using nuclear DNA showed that this and 11 other species lay genetically within the genus ''Hydnellum'', a genus of which harder woody flesh had previously been considered a distinguishing feature from soft-fleshed ''Sarcodon''. Description The fruit body (mushroom) has a convex to flattened brownish cap up to across that is covered with brown scales. It can be tinged with pink at the margins and darken with age. The mushroom has yellow-brown spines under the cap that are long and in diameter. They are decurrent to the stem. The pinkish brown stem is high and wide, and has a narrower base ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petter Adolf Karsten
Petter Adolf Karsten (16 February 1834 – 22 March 1917) was a Finland, Finnish mycology, mycologist, the foremost expert on the fungi of Finland in his day, and known in consequence as the "father of Finnish mycology". Karsten was born in Merimasku near Turku, studied at the University of Helsinki, and then moved to the inland of Tammela, Finland, Tammela, where he spent most of his life with teaching botany and doing research at the Mustiala Agriculture Institute (now the Faculty of Agriculture of the HAMK University of Applied Sciences). He amassed a vast collection, both by his own efforts and those of his correspondents, and named about 200 new genera and 2,000 new species. Between 1861 and 1870 Karsten edited the exsiccata series ''Fungi Fenniae exsiccati. Samling af Finska svampar'' with 1,000 numbers. In his mycological studies he extensively used the microscope and can be considered as the pioneer of fungal microscopy. ''Karstenia'', the international journal of mycology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarcodon Rimosus
''Sarcodon'' is a genus of fungi in the family Bankeraceae, which is part of the order Thelephorales, known for its almost universal ectomycorrhizal ecology. The genus owes its name to the presence of teeth-like spines on the hymenophore, from ancient Greek; ''sarco'' = flesh and ''odon'' = tooth. For this reason they are commonly called "tooth fungi", or "Hydnoid fungi". Description ''Sarcodon'' species have yellow to brown tinted basidiospores, with lengths in the range of 7.4–9 μm. The basidiomata are often soft and fleshy. Species , Index Fungorum listed 49 valid species of ''Sarcodon''. However, in 2019 Larsson ''et al.'' transferred 12 species into the genus ''Hydnellum''. In 2024, Douch ''et al.'' transferred '' Sarcodon carbonarius'' to the genus '' Neosarcodon''. * '' Sarcodon aglaosoma'' * ''Sarcodon atroviridis'' * ''Sarcodon austrofibulatus'' * ''Sarcodon bubalinus'' * '' Sarcodon caliginosus'' * ''Sarcodon calvatus'' * ''Sarcodon catalaunicus'' * ''Sar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Elias Magnus Fries
In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion, especially in the context of rank-based (" Linnaean") nomenclature (much less so under phylogenetic nomenclature). If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were presumably set forth in prehistoric times by hunter-gatherers, as suggested by the fairly sophisticated folk taxonomies. Much later, Aristotle, and later still ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi Of Europe
A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one of the kingdom (biology)#Six kingdoms (1998), traditional eukaryotic kingdoms, along with Animalia, Plantae, and either Protista or 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 group of related o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrone
Pyrones or pyranones are a class of heterocyclic chemical compounds. They contain an unsaturated six-membered ring, which has one oxygen atom and a carbonyl functional group. There are two isomers, denoted as 2-pyrone and 4-pyrone. The 2-pyrone (or α-pyrone) structure is a lactone and is found in nature as part of the coumarin ring system. The 4-pyrone (or γ-pyrone) structure is an ether–ketone found in some natural chemical compounds such as chromone, maltol and kojic acid. See also * Furanone 2-Furanone is a heterocyclic organic compound. It is also known as γ-crotonolactone (GCL), as it is formally the lactone derived from γ-hydroxy isocrotonic acid. The chemical is colloquially called "butenolide", and is the parent structure for ..., which has one fewer carbon atom in the ring. * Pyridones, which contain a nitrogen in place of the oxygen that is part of the ring References {{heterocyclic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerve Growth Factor
Nerve growth factor (NGF) is a neurotrophic factor and neuropeptide primarily involved in the regulation of growth, maintenance, proliferation, and survival of certain target neurons. It is perhaps the prototypical growth factor, in that it was one of the first to be described. Since it was first isolated by Nobel laureates Rita Levi-Montalcini and Stanley Cohen in 1954, numerous biological processes involving NGF have been identified, two of them being the survival of pancreatic beta cells and the regulation of the immune system. Structure NGF is initially in a 7S, 130- kDa complex of 3 proteins – Alpha-NGF, Beta-NGF, and Gamma-NGF (2:1:2 ratio) when expressed. This form of NGF is also referred to as proNGF (NGF precursor). The gamma subunit of this complex acts as a serine protease, and cleaves the N-terminal of the beta subunit, thereby activating the protein into functional NGF. The term ''nerve growth factor'' usually refers to the 2.5S, 26-kDa beta subunit of the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diterpenoid
Diterpenes are a class of terpenes composed of four isoprene units, often with the molecular formula C20H32. They are biosynthesized by plants, animals and fungi via the HMG-CoA reductase pathway, with geranylgeranyl pyrophosphate being a primary intermediate. Diterpenes form the basis for biologically important compounds such as retinol, retinal, and phytol. Some diterpenes are known to be antimicrobial and anti-inflammatory. Structures As with most terpenes a huge number of potential structures exists, which may be broadly divided according to the number of rings present. Biosynthesis Diterpenes are derived from the addition of one IPP unit to FPP to form geranylgeranyl pyrophosphate (GGPP). From GGPP, structural diversity is achieved mainly by two classes of enzymes; the diterpene synthases and cytochromes P450. Several diterpenes are produced by plants and cyanobacteria. GGPP is also the precursor for the synthesis of the phytane by the action of the enzyme geranyl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydnellum Underwoodii
''Hydnellum underwoodii'' is an inedible species of tooth fungus in the family Bankeraceae. Found in North America, it was described as new to science in 1906 by American mycologist Howard James Banker. Its reddish-brown, convex to flattened cap measures in diameter. Reddish-brown, partially erect scales adorn the cap surface. Spines on the cap underside are 1–3 mm long; they are initially white, becoming brown with grayish tips in age. The oval to spherical spores are 6–7.5 by 5.5–6.5 μm. The fungus fruits singly or scattered, on the ground in coniferous forest Conifers () are a group of cone-bearing seed plants, a subset of gymnosperms. Scientifically, they make up the division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single extant class, Pinopsida. All e ...s. References External links * * Fungi described in 1906 Fungi of North America Inedible fungi underwoodii Fungus species {{Agaricomycet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarcodon Imbricatus
''Sarcodon imbricatus'', commonly known as the shingled hedgehog or scaly hedgehog, is a species of tooth fungus in the order Thelephorales. The mushroom has a large, brownish cap with large brown scales and may reach 30 cm (12 in) in diameter. On the underside it sports greyish, brittle teeth instead of gills, and has white flesh. Its spore print is brown. It ranges throughout Europe and North America, while collections from the British Isles are now assigned to '' Sarcodon squamosus''. It appears in autumn and is associated with spruce (''Picea''). The mushroom is edible, but it may be bitter and possibly causes gastrointestinal upset. Taxonomy The Swedish botanist Olof Celsius reported in 1732 that ''Sarcodon imbricatus'' occurred in the vicinity of Uppsala, and Carl Linnaeus wrote of it in his 1737 work ''Flora lapponica''. It was one of the species initially described by Linnaeus, as ''Hydnum imbricatum'', in the second volume of his ''Species Plantarum'' in 1753 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tooth Fungus
The hydnoid fungi are a group of fungi in the Basidiomycota with basidiocarps (fruit bodies) producing spores on pendant, tooth-like or spine-like projections. They are colloquially called tooth fungi. Originally such fungi were referred to the genus ''Hydnum'' ("hydnoid" means ''Hydnum''-like), but it is now known that not all hydnoid species are closely related. History ''Hydnum'' was one of the original genera created by Linnaeus in his ''Species Plantarum'' of 1753. It contained all species of fungi with fruit bodies bearing pendant, tooth-like projections. Subsequent authors described around 900 species in the genus. With increasing use of the microscope, it became clear that not all tooth fungi were closely related and most ''Hydnum'' species were gradually moved to other genera. The Dutch mycologist Rudolph Arnold Maas Geesteranus paid particular attention to the group, producing a series of papers reviewing the taxonomy of hydnoid fungi. The original genus ''Hydnum'' is s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydnellum Fennicum
''Hydnellum fennicum'' is a species of tooth fungus in the family Bankeraceae. Native to northern Europe, it forms mycorrhizal associations with pine trees. It is recognised by its yellowish‑brown cap covered in fine powdery scales and by downward‑pointing teeth beneath that change from whitish to purplish‑brown. The fungus is considered critically endangered in Switzerland due to habitat loss. Taxonomy It was originally described by the Norwegian mycologist Petter Karsten in 1882 as a variety of '' Sarcodon scabrosus''. Karsten promoted it to a distinct species in 1887. Description ''Hydnellum fennicum'' produces fruit bodies (basidiocarps) that occur singly or in small clusters. The cap ( pileus) grows up to 10 cm in diameter and often develops a shallow central depression. Its surface is densely covered in fine, powdery scales—those in the centre tending to stand upright, while those towards the margin lie flat. Young caps are ochre‑yellow, but they darken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydnellum
''Hydnellum'' is a genus of tooth fungi in the family Bankeraceae (order Thelephorales). Widely distributed in the Northern Hemisphere, the genus contains around 40 species. The basidiocarp, fruitbodies of its members grow by slowly enveloping nearby bits of grass and vegetation. There is great variability in the form of ''Hydnellum'' fruitbodies, which are greatly influenced by environmental conditions such as rainfall and humidity, drying winds, and temperature. They are too tough and woody to eat comfortably. Several species have become the focus of increasing conservation biology, conservation concern following widespread declines in abundance. ''Hydnellum'' species produce pigments that have been used to dye textiles. Several chemical compounds—some with unique biological activity—have been isolated and identified from the genus. One of the better-known species is the unusual pinkish-white ''Hydnellum peckii'', also known as "strawberries and cream" or as the "bleeding ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
