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Omphalotus Mexicanus
''Omphalotus mexicanus'' is a gilled basidiomycete mushroom in the family Marasmiaceae. Found in Mexico, it was described as new to science in 1984. Fruit bodies contain the compounds illudin The illudins are a family of sesquiterpenes with antitumor antibiotic properties produced by some mushrooms. In their isolated form, illudins show selective toxicity for myelocytic leukemia and other carcinoma cells. Illudins are highly toxic, w ... S and illudin M. Found in the highlands of Mexico and Central America, its fruiting bodies are an unusual dark blue tinted with yellow. References External links * {{Taxonbar, from=Q7090733 mexicanus Fungi described in 1984 Fungi of North America Taxa named by Gastón Guzmán ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastón Guzmán
Gastón Guzmán Huerta (August 26, 1932 – January 12, 2016), a Mexican mycologist and anthropologist, was an authority on the genus ''Psilocybe''. Career He was born in Xalapa, Veracruz, in 1932. His interest in mycology began in 1955 when as a graduate student he decided to update his school's (National Polytechnic Institute) poorly kept collection of fungi. During his early field work he found a large assortment of species about which little was known at the time. This inspired him to choose fungi as the topic of his professional thesis. In 1957 Guzmán was invited by the University of Mexico to assist Rolf Singer, who would arrive to Mexico the following year to study the hallucinogenic mushroom genus ''Psilocybe''. Guzmán accepted and assisted Singer through his explorations in Mexico. While they were in the Huautla de Jiménez region, in their last day of the expeditions, they met R. Gordon Wasson. For Guzmán it was a "fructiferous meeting." In 1958, he published his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basidiomycete
Basidiomycota () is one of two large divisions that, together with the Ascomycota, constitute the subkingdom Dikarya (often referred to as the "higher fungi") within the kingdom Fungi. Members are known as basidiomycetes. More specifically, Basidiomycota includes these groups: mushrooms, puffballs, stinkhorns, bracket fungi, other polypores, jelly fungi, boletes, chanterelles, earth stars, smuts, bunts, rusts, mirror yeasts, and ''Cryptococcus'', the human pathogenic yeast. Basidiomycota are filamentous fungi composed of hyphae (except for basidiomycota-yeast) and reproduce sexually via the formation of specialized club-shaped end cells called basidia that normally bear external meiospores (usually four). These specialized spores are called basidiospores. However, some Basidiomycota are obligate asexual reproducers. Basidiomycota that reproduce asexually (discussed below) can typically be recognized as members of this division by gross similarity to others, by the form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mushroom
A mushroom or toadstool is the fleshy, spore-bearing fruiting body of a fungus, typically produced above ground, on soil, or on its food source. ''Toadstool'' generally denotes one poisonous to humans. The standard for the name "mushroom" is the cultivated white button mushroom, ''Agaricus bisporus''; hence the word "mushroom" is most often applied to those fungi ( Basidiomycota, Agaricomycetes) that have a stem ( stipe), a cap ( pileus), and gills (lamellae, sing. lamella) on the underside of the cap. "Mushroom" also describes a variety of other gilled fungi, with or without stems, therefore the term is used to describe the fleshy fruiting bodies of some Ascomycota. These gills produce microscopic spores that help the fungus spread across the ground or its occupant surface. Forms deviating from the standard morphology usually have more specific names, such as "bolete", "puffball", "stinkhorn", and " morel", and gilled mushrooms themselves are often called "agarics" in refere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marasmiaceae
The Marasmiaceae are a family of basidiomycete fungi which have white spores. They mostly have tough stems and the capability of shrivelling up during a dry period and later recovering. The widely consumed edible fungus ''Lentinula edodes'', the shiitake mushroom, is a member of this family. According to a 2008 estimate, the family contains 54 genera and 1590 species. The family Omphalotaceae, described by A. Bresinsky in 1985 as a segregate from the Tricholomataceae, has been considered synonymous with Marasmiaceae. However DNA analyses by Moncalvo et al. in 2002 and Matheny et al. in 2006 have now led to that family being accepted by Index Fungorum and most recent references. The following genera are included in that family : ''Anthracophyllum'', ''Gymnopus'', ''Lentinula'', ''Marasmiellus'', '' Mycetinis'', '' Rhodocollybia'', ''Omphalotus''. Genera See also * List of Agaricales families References * * {{Taxonbar, from=Q544997 Marasmiaceae The Marasmiaceae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basidiocarp
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 not produce such structures. As with other sporocarps, epigeous (above-ground) basidiocarps that are visible to the naked eye (especially those with a more or less agaricoid morphology) are commonly referred to as mushrooms, while hypogeous (underground) basidiocarps are usually called false truffles. Structure All basidiocarps serve as the structure on which the hymenium is produced. Basidia are found on the surface of the hymenium, and the basidia ultimately produce spores. In its simplest form, a basidiocarp consists of an undifferentiated fruiting structure with a hymenium on the surface; such a structure is characteristic of many simple jelly and club fungi. In more complex basidiocarps, there is differentiation into a stipe, a pileus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illudin
The illudins are a family of sesquiterpenes with antitumor antibiotic properties produced by some mushrooms. In their isolated form, illudins show selective toxicity for myelocytic leukemia and other carcinoma cells. Illudins are highly toxic, with little apparent therapeutic value in their natural form. Illudins are thought to be responsible for the toxicity of various ''Omphalotus'' species such as '' O. olearius'' and '' O. illudens'' (Jack o' Lantern mushrooms), and '' O. nidiformis'' (Australian ghost fungus). Active metabolites of illudins damage DNA via an unknown mechanism. In addition, genetic analysis suggests that the illudin-mediated DNA damage is ignored by global excision repair systems unless the lesions occur within stalled replication or transcription Transcription refers to the process of converting sounds (voice, music etc.) into letters or musical notes, or producing a copy of something in another medium, including: Genetics * Transcription (biology), t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omphalotus
''Omphalotus'' is a genus of basidiomycete mushroom, in the family Marasmiaceae, formally circumscribed by Victor Fayod in 1889. Members have the traditional cap and stem structure. They are saprobic, and fruit in clumps on the ground, adjacent to host trees. The best known and type species is the jack-o'-lantern mushroom ''(Omphalotus olearius)''. Species of ''Omphalotus'' have been mistaken for chanterelles. All ''Omphalotus'' species are presumed poisonous, causing gastrointestinal symptoms. Some ''Omphalotus'' species have bioluminescent properties. Taxonomy Victor Fayod originally erected the genus with '' Pleurotus olearius'' and '' P. eryngii'' as its principal species in 1889, placing it in a ''tribus'' ("alliance") with the genera '' Pleurotus'' and '' Pleurotellus''. The relationships of the genus have become clearer with genetic analysis. Rolf Singer placed it and the related ''Lampteromyces'' in the Boletales due to the presence of the pigment variegatic a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi Described In 1984
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 f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi Of North America
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 fungi' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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