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Tulasnella Aurantiaca
''Tulasnella aurantiaca'' is a species of fungus in the order Cantharellales. It produces orange-red, pustular, gelatinous anamorphic states on dead, deciduous wood. Originally described from Europe, it also occurs in North America where the species appears to be more common. Taxonomy ''Tulasnella aurantiaca'' was first published in 1851 by German mycologist Hermann Friedrich Bonorden who placed it in a new genus, ''Hormomyces''. Microscopically, the species produces branched chains of hyaline, globose conidia and no teleomorphic (basidia-bearing) state is known. As a result, its disposition and relationships have long been uncertain. French mycologist Narcisse Théophile Patouillard suggested that ''Hormomyces aurantiacus'' was an anamorph of a ''Dacrymyces'' species. Italian mycologist Pier Andrea Saccardo later suggested that ''H. aurantiacus'' might be the anamorph of ''Tremella mesenterica'', a view accepted by influential Dutch mycologist M.A. Donk. Molecular research, ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Friedrich Bonorden
Hermann Friedrich Bonorden (28 August 1801 – 19 May 1884) was a German physician and mycologist. During his career he served as a ''Regimentarzt'' (regimental medical doctor) in Köln.Biodeiversity Heritage Library Taxonomic literature : a selective guide to botanical publications In 1866, Stephan Schulzer von Müggenburg named the fungi genus ''Bonordenia'' in his honor. The genus ''Bonordeniella'' was named after him by and |
Basidia
A basidium () is a microscopic sporangium (a spore-producing structure) found on the hymenophore of fruiting bodies of basidiomycete fungi which are also called tertiary mycelium, developed from secondary mycelium. Tertiary mycelium is highly-coiled secondary myceliuma dikaryon. The presence of basidia is one of the main characteristic features of the Basidiomycota. A basidium usually bears four sexual spores called basidiospores; occasionally the number may be two or even eight. In a typical basidium, each basidiospore is borne at the tip of a narrow prong or horn called a sterigma (), and is forcibly discharged upon maturity. The word ''basidium'' literally means "little pedestal", from the way in which the basidium supports the spores. However, some biologists suggest that the structure more closely resembles a club. An immature basidium is known as a basidiole. Structure Most basidiomycota have single celled basidia (holobasidia), but in some groups basidia can be multic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi Of Europe
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tulasnella
''Tulasnella'' is a genus of effused (patch-forming) fungi in the order Cantharellales. Basidiocarps (fruit bodies), when visible, are typically smooth, ceraceous (waxy) to subgelatinous, frequently lilaceous to violet-grey, and formed on the underside of fallen branches and logs. They are microscopically distinct in having basidia with grossly swollen sterigmata (or epibasidia) on which basidiospores are formed. One atypical species, '' Tulasnella aurantiaca'', produces orange to red, gelatinous, pustular anamorphs on wood. Some species form facultative mycorrhizas with orchids and liverworts. Around 80 species of ''Tulasnella'' are known worldwide. Taxonomy History ''Tulasnella'' was originally circumscribed by German mycologist Joseph Schröter in 1888, partly based on an earlier illustration by Charles Tulasne, after whom the new genus was named. Schröter believed the unusual basidia sufficiently distinct to warrant the creation of a new genus which he considered interme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DNA Sequences
A nucleic acid sequence is a succession of bases signified by a series of a set of five different letters that indicate the order of nucleotides forming alleles within a DNA (using GACT) or RNA (GACU) molecule. By convention, sequences are usually presented from the 5' end to the 3' end. For DNA, the sense strand is used. Because nucleic acids are normally linear (unbranched) polymers, specifying the sequence is equivalent to defining the covalent structure of the entire molecule. For this reason, the nucleic acid sequence is also termed the primary structure. The sequence has capacity to represent information. Biological deoxyribonucleic acid represents the information which directs the functions of an organism. Nucleic acids also have a secondary structure and tertiary structure. Primary structure is sometimes mistakenly referred to as ''primary sequence''. Conversely, there is no parallel concept of secondary or tertiary sequence. Nucleotides Nucleic acids cons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladistic
Cladistics (; ) is an approach to biological classification in which organisms are categorized in groups (" clades") based on hypotheses of most recent common ancestry. The evidence for hypothesized relationships is typically shared derived characteristics (synapomorphies'')'' that are not present in more distant groups and ancestors. However, from an empirical perspective, common ancestors are inferences based on a cladistic hypothesis of relationships of taxa whose character states can be observed. Theoretically, a last common ancestor and all its descendants constitute a (minimal) clade. Importantly, all descendants stay in their overarching ancestral clade. For example, if the terms ''worms'' or ''fishes'' were used within a ''strict'' cladistic framework, these terms would include humans. Many of these terms are normally used paraphyletically, outside of cladistics, e.g. as a ' grade', which are fruitless to precisely delineate, especially when including extinct species. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Phylogenetics
Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to determine the processes by which diversity among species has been achieved. The result of a molecular phylogenetic analysis is expressed in a phylogenetic tree. Molecular phylogenetics is one aspect of molecular systematics, a broader term that also includes the use of molecular data in taxonomy and biogeography. Molecular phylogenetics and molecular evolution correlate. Molecular evolution is the process of selective changes (mutations) at a molecular level (genes, proteins, etc.) throughout various branches in the tree of life (evolution). Molecular phylogenetics makes inferences of the evolutionary relationships that arise due to molecular evolution and results in the construction of a phylogenetic tree. History The theoretical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marinus Anton Donk
Marinus Anton Donk (14 August 1908 – 2 September 1972) was a Dutch mycologist. He specialized in the taxonomy and nomenclature of mushrooms. Rolf Singer wrote in his obituary that he was "one of the most outstanding figures of contemporary mycology." Early life Donk was born in Situbondo, East Java in 1908, and completed secondary school in The Hague, Netherlands. He studied biology at the University of Utrecht, starting in 1927. As a graduate student in mycology he completed the work for his 1931 "Revisie van de Nederlandse Heterobasidiomyceteae" (Revision of the Dutch Heterobasidiomycetes). He completed his studies and attained a doctorate degree in 1933 with the second part of his work, ''Revisie van de Nederlandse Heterobasidiomyceteae II''. Afterwards he returned to Java, where he worked from 1934 to 1940 as a teacher, and, starting from 1941 as a curator in the herbarium of the Buitenzorg Botanical Garden. He was interned in a Japanese prison camp from 1942 to 1945. Dur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tremella Mesenterica
''Tremella mesenterica'' (common names include yellow brain, golden jelly fungus, yellow trembler, and witches' butter) is a common jelly fungus in the family Tremellaceae of the Agaricomycotina. It is most frequently found on dead but attached and on recently fallen branches, especially of angiosperms, as a parasite of wood decay fungi in the genus ''Peniophora''. The gelatinous, orange-yellow fruit body of the fungus, which can grow up to diameter, has a convoluted or lobed surface that is greasy or slimy when damp. It grows in crevices in bark, appearing during rainy weather. Within a few days after rain it dries into a thin film or shriveled mass capable of reviving after subsequent rain. This fungus occurs widely in deciduous and mixed forests and is widely distributed in temperate and tropical regions that include Africa, Asia, Australia, Europe, North and South America. Although considered bland and flavorless, the fungus is edible. ''Tremella mesenterica'' produces c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dacrymyces
''Dacrymyces'' is a genus of fungi in the family Dacrymycetaceae. Species are saprotrophs and occur on dead wood. Their distribution is worldwide. Basidiocarps (fruit bodies) are ceraceous to gelatinous, often yellow to orange, and typically disc-shaped to cushion-shaped. The genus has traditionally been differentiated from other genera in the Dacrymycetaceae on the basis of basidiocarp morphology, following (in recent years) the monograph of New Zealand mycologist Robert McNabb. Molecular research, based on cladistic analysis of DNA sequences, has however shown that morphology is not a good indicator of natural relationships within the Dacrymycetaceae. As a result several species formerly referred to ''Dacrymyces'' have been moved to '' Dacryonaema'' or '' Dendrodacrys''. Species *'' Dacrymyces adpressus'' *'' Dacrymyces albidus'' *''Dacrymyces ancyleus'' *'' Dacrymyces ancoratus'' *'' Dacrymyces aquaticus'' *'' Dacrymyces aureosporus'' *''Dacrymyces australis'' *''Dacrymyces c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Narcisse Théophile Patouillard
Narcisse Théophile Patouillard (2 July 1854 – 30 March 1926) was a French pharmacist and mycologist. He was born in Macornay, a town in the department of Jura. He studied in Besançon, then furthered his education at the École Supérieure de Pharmacie in Paris, where in 1884 he earned a diploma with a doctoral thesis involving the structure and classification of Hymenomycetes called "''Des Hyménomycètes au point de vue de leur structure et de leur classification''". Des Hyménomycètes au point de vue de leur structure et leur classification Patouillard was a practicing pharmacist for more than forty years, first in Poligny (1881–84), and later in |
Teleomorph
In mycology, the terms teleomorph, anamorph, and holomorph apply to portions of the life cycles of fungi in the phyla Ascomycota and Basidiomycota: *Teleomorph: the sexual reproductive stage (morph), typically a fruiting body. *Anamorph: an asexual reproductive stage (morph), often mold-like. When a single fungus produces multiple morphologically distinct anamorphs, these are called synanamorphs. *Holomorph: the whole fungus, including anamorphs and teleomorph. Dual naming of fungi Fungi are classified primarily based on the structures associated with sexual reproduction, which tend to be evolutionarily conserved. However, many fungi reproduce only asexually, and cannot easily be classified based on sexual characteristics; some produce both asexual and sexual states. These problematic species are often members of the Ascomycota, but a few of them belong to the Basidiomycota. Even among fungi that reproduce both sexually and asexually, often only one method of reproduction can be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
