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Cladonia Stellaris
''Cladonia stellaris'' or the star-tipped cup lichen is an ecologically important species of cup lichen that forms continuous mats over large areas of the ground in boreal and arctic regions around the circumpolar north. The species is a preferred food source of reindeer and caribou during the winter months, and it has an important role in regulating nutrient cycling and soil microbiological communities. Like many other lichens, ''Cladonia stellaris'' is used by humans directly for its chemical properties, as many of the secondary metabolites are antimicrobial (e.g., Usnic acid), but it also has the unique distinction of being harvested and sold as 'fake trees' for model train displays. It is also used as a sound absorber in interior design. The fungal portion of ''Cladonia stellaris'', known as a mycobiont, protects the lichen from lichenivores, superfluous solar radiation, and other kinds of stressors in their ecosystem. ''Cladonia stellaris'' is described as mat-forming and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philipp Maximilian Opiz
Philipp (Filip) Maximilian Opiz (5 June 1787 in Čáslav – 20 May 1858 in Prague) was a Czech-German forester and botanist. Beginning in 1805 he served as a cameral-beamter in his hometown of Čáslav, later working in Pardubice (from 1808) and Prague (from 1814). In 1831 he became a ''Forstamtsconcipist'' (forestry official). He was the taxonomic authority of numerous plant species, and the creator of many sets of exsiccatae. In 1830 Carl Borivoj Presl named the genus ''Opizia'' in his honor. Principal works * ''Deutschlands cryptogamische Gewächse. Ein Anhang zur Flora Deutschlands von Joh. Christ. Röhling'', 1817 - German cryptogams; Notes in regards to "Flora Deutschland" by Johann Christoph Röhling. * ''Böheims phänerogamische und cryptogamische gewächse'', 1823 - Bohemian phanerogam A spermatophyte (; ), also known as phanerogam (taxon Phanerogamae) or phaenogam (taxon Phaenogamae), is any plant that produces seeds, hence the alternative name seed plant. Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Usnic Acid
Usnic acid is a naturally occurring dibenzofuran derivative found in several lichen species with the formula C18H16O7. It was first isolated by German scientist W. Knop in 1844 and first synthesized between 1933-1937 by Curd and Robertson. Usnic acid was identified in many genera of lichens including ''Usnea'', '' Cladonia'', ''Hypotrachyna'', ''Lecanora'', ''Ramalina'', '' Evernia'', ''Parmelia'' and '' Alectoria''. Although it is generally believed that usnic acid is exclusively restricted to lichens, in a few unconfirmed isolated cases the compound was found in kombucha tea and non-lichenized ascomycetes. At normal conditions, usnic acid is a bitter, yellow, solid substance. It is known to occur in nature in both the d- and l-forms as well as a racemic mixture. Salts of usnic acid are called usnates (e.g. copper usnate). Biological role in lichens Usnic acid is a secondary metabolite in lichens whose role has not been completely elucidated. It is believed that usnic acid prote ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichens Of Europe
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. Lichens have properties different from those of their component organisms. They come in many colors, sizes, and forms and are sometimes plant-like, but are not s. They may have tiny, leafless branches (); flat leaf-like structures ( |
Lichens Of North America
Irwin M. Brodo (born 1935) is an emeritus scientist at the Canadian Museum of Nature, in Ottawa, Ontario, Canada. He is an authority on the identification and biology of lichens. Irwin Brodo was honored in 1994 with an Acharius Medal presented to him by the International Association for Lichenology. Brodo did his undergraduate studies at Columbia University, and received a master's degree from Cornell University. He earned a Ph.D. in lichenology under the supervision of Henry Imshaug at Michigan State University. He later went on to teach at Université Laval and the University of Alaska, and he also supervised master's students at the University of Ottawa and Carleton University. Brodo's list of publications includes 75 research papers, 8 popular articles, 22 reviews and 6 editorials and obituaries. In 1993, Brodie was awarded the Mary E. Elliot Service Award for his meritorious service to the Canadian Botanical Association. One of Irwin Brodo's great achievements was the public ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichens Described In 1823
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. Lichens have properties different from those of their component organisms. They come in many colors, sizes, and forms and are sometimes plant-like, but are not s. They may have tiny, leafless branches (); flat leaf-like structures ( |
Lichen Species
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. Lichens have properties different from those of their component organisms. They come in many colors, sizes, and forms and are sometimes plant-like, but are not s. They may have tiny, leafless branches (); flat leaf-like structures ( |
List Of Cladonia Species
''Cladonia'' is a large genus of lichens in the family Cladoniaceae. , ''Species Fungorum'' lists 233 species in the genus. A *'' Cladonia acervata'' *'' Cladonia ahtii'' *'' Cladonia alaskana'' *'' Cladonia albofuscescens'' *'' Cladonia albonigra'' *'' Cladonia aleuropoda'' *'' Cladonia alpina'' Yoshim. (1968) *''Cladonia amaurocraea'' *'' Cladonia anaemica'' *'' Cladonia andesita'' *'' Cladonia angustata'' *'' Cladonia appalachensis'' *'' Cladonia apodocarpa'' *''Cladonia arbuscula'' *'' Cladonia archeri'' *'' Cladonia arcuata'' *'' Cladonia argentea'' *'' Cladonia asahinae'' *'' Cladonia atlantica'' A.Evans (1944) *'' Cladonia atrans'' *'' Cladonia attacta'' *'' Cladonia awasthiana'' B *'' Cladonia bacillaris'' *'' Cladonia bacilliformis'' *'' Cladonia bahiana'' *'' Cladonia bangii'' *'' Cladonia bellidiflora'' *'' Cladonia berghsonii'' *'' Cladonia bimberiensis'' *'' Cladonia borbonica'' *'' Cladonia borealis'' *'' Clad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladonia Arbuscula
''Cladonia arbuscula'' or the shrubby cup lichen is a species of cup lichen in the Cladoniaceae The Cladoniaceae are a family of lichenized fungi in the order Lecanorales. It is one of the largest families of lichen-forming fungi, with about 560 species distributed amongst 17 genera. The reindeer moss and cup lichens (''Cladonia'') belong t ... family. Taxonomy Name The species name "arbuscula" is Latin for the word "bush" or "shrub", which may be due to the fact that the lichen has branches that resemble a bush. Subspecies C. arbuscula has 6 subspecies: * ''Cladonia arbuscula'' subsp. ''arbuscula'' (Wallr.) Flot. * ''Cladonia arbuscula'' subsp. ''beringiana'' Ahti * ''Cladonia arbuscula'' subsp. ''boliviana'' (Ahti) Ahti & De Priest * ''Cladonia arbuscula'' subsp. ''imshaugii'' (Ahti) Ahti & De Priest * ''Cladonia arbuscula'' subsp. ''mitis'' (Sandst.) Ruoss * ''Cladonia arbuscula'' subsp. ''pachyderma'' (Ahti) Ahti & De Priest Ecology ''Cladonia arbuscula'' is a known hos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladonia Rangiferina
''Cladonia rangiferina'', also known as reindeer cup lichen, reindeer lichen (cf. Swedish language, Sw. ''renlav'') or grey reindeer lichen, is a light-colored fruticose lichen, fruticose, Cladonia, cup lichen species in the family Cladoniaceae. It grows in both hot and cold climates in well-drained, open environments. Found primarily in areas of alpine tundra, it is extremely cold-hardy. Other common names include reindeer moss, deer moss, and caribou moss, but these names can be misleading since it is, though somewhat moss-like in appearance, not a moss. As the common names suggest, reindeer lichen is an important food for reindeer (caribou), and has economic importance as a result. synonym (biology), Synonyms include ''Cladina rangiferina'' and ''Lichen rangiferinus''. Description Thallus, Thalli are fruticose, and extensively branched, with each branch usually dividing into three or four (sometimes two); the thicker branches are typically in diameter. The color is grayish, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antimicrobial
An antimicrobial is an agent that kills microorganisms or stops their growth. Antimicrobial medicines can be grouped according to the microorganisms they act primarily against. For example, antibiotics are used against bacteria, and antifungals are used against fungi. They can also be classified according to their function. Agents that kill microbes are microbicides, while those that merely inhibit their growth are called bacteriostatic agents. The use of antimicrobial medicines to treat infection is known as antimicrobial chemotherapy, while the use of antimicrobial medicines to prevent infection is known as antimicrobial prophylaxis. The main classes of antimicrobial agents are disinfectants (non-selective agents, such as bleach), which kill a wide range of microbes on non-living surfaces to prevent the spread of illness, antiseptics (which are applied to living tissue and help reduce infection during surgery), and antibiotics (which destroy microorganisms within the body). The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zdeněk Pouzar
Zdeněk Pouzar (born 13 April 1932) is a Czech mycologist. Along with František Kotlaba, he published several works about the taxonomy of polypore, corticioid, and gilled fungi. Pouzar is a noted expert on stromatic pyrenomycetes. Until 2012, he was the editor-in-chief of the scientific journal ''Czech Mycology Czech may refer to: * Anything from or related to the Czech Republic, a country in Europe ** Czech language ** Czechs, the people of the area ** Czech culture Czech culture has been shaped by its geographical position in the middle of Europe. Infl ...''. References {{DEFAULTSORT:Pouzar, Zdenek 1932 births Czech mycologists Living people ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Secondary Metabolite
Secondary metabolites, also called specialised metabolites, toxins, secondary products, or natural products, are organic compounds produced by any lifeform, e.g. bacteria, fungi, animals, or plants, which are not directly involved in the normal growth, development, or reproduction of the organism. Instead, they generally mediate ecological interactions, which may produce a selective advantage for the organism by increasing its survivability or fecundity. Specific secondary metabolites are often restricted to a narrow set of species within a phylogenetic group. Secondary metabolites often play an important role in plant defense against herbivory and other interspecies defenses. Humans use secondary metabolites as medicines, flavourings, pigments, and recreational drugs. The term secondary metabolite was first coined by Albrecht Kossel, a 1910 Nobel Prize laureate for medicine and physiology in 1910. 30 years later a Polish botanist Friedrich Czapek described secondary metabolit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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