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Aspergillus Parasiticus
''Aspergillus'' () is a genus consisting of several hundred mold species found in various climates worldwide. ''Aspergillus'' was first catalogued in 1729 by the Italian priest and biologist Pier Antonio Micheli. Viewing the fungi under a microscope, Micheli was reminded of the shape of an ''aspergillum'' (holy water sprinkler), from Latin ''spargere'' (to sprinkle), and named the genus accordingly. Aspergillum is an asexual reproduction, asexual spore-forming structure common to all ''Aspergillus'' species; around one-third of species are also known to have a sexual stage. While some species of ''Aspergillus'' are known to cause fungal infections, others are of commercial importance. Taxonomy Species In March 2010, ''Aspergillus'' covered 837 species of fungi. Notable species placed in Aspergillus include: * ''Aspergillus flavus'' is a notable plant pathogen impacting crop yields and a common cause of aspergillosis. * ''Aspergillus fumigatus'' is the most common cause of as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conidium
A conidium ( ; : conidia), sometimes termed an asexual chlamydospore or chlamydoconidium (: chlamydoconidia), is an Asexual reproduction, asexual, non-motility, motile spore of a fungus. The word ''conidium'' comes from the Ancient Greek word for dust, ('). They are also called mitospores due to the way they are generated through the cellular process of mitosis. They are produced exogenously. The two new haploid cells are genetically identical to the haploid parent, and can develop into new organisms if conditions are favorable, and serve in biological dispersal. Asexual reproduction in ascomycetes (the phylum Ascomycota) is by the formation of conidia, which are borne on specialized stalks called conidiophores. The Morphology (biology), morphology of these specialized conidiophores is often distinctive between species and, before the development of molecular techniques at the end of the 20th century, was widely used for identification of (''e.g.'' ''Metarhizium#Species, Metarh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Heinrich Friedrich Link
Johann Heinrich Friedrich Link (2 February 1767 – 1 January 1851) was a German natural history, naturalist and botanist. Biography Link was born at Hildesheim as a son of the minister August Heinrich Link (1738–1783), who taught him love of nature through collection of 'natural objects'. He studied medicine and natural sciences at the Hannoverschen Landesuniversität of Göttingen, and graduated as MD in 1789, promoting on his thesis ''"Flora der Felsgesteine rund um Göttingen"'' (Flora of the rocky beds around Göttingen). One of his teachers was the famous natural scientist Johann Friedrich Blumenbach (1752–1840). He became a private tutor (''Privatdozent'') in Göttingen. In 1792, he became the first professor of the new department of chemistry, zoology and botany at the University of Rostock. During his stay at Rostock, he became an early follower of the antiphlogistic theory of Lavoisier, teaching about the existence of oxygen instead of phlogiston. He was also a p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspergillus Flavus
''Aspergillus flavus'' is a saprotrophic and pathogenic fungus with a cosmopolitan distribution. It is best known for its colonization of cereal grains, legumes, and tree nuts. Postharvest rot typically develops during harvest, storage, and/or transit. Its specific name '' flavus'' derives from the Latin meaning yellow, a reference to the frequently observed colour of the spores. ''A. flavus'' infections can occur while hosts are still in the field (preharvest), but often show no symptoms (dormancy) until postharvest storage or transport. In addition to causing preharvest and postharvest infections, many strains produce significant quantities of toxic compounds known as mycotoxins, which, when consumed, are toxic to mammals. ''A. flavus'' is also an opportunistic human and animal pathogen, causing aspergillosis in immunocompromised individuals. Hosts ''Aspergillus flavus'' is found globally as a saprophyte in soils and causes disease on many important agriculture crops. C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asexual Reproduction
Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction from either unicellular or multicellular organisms inherit the full set of genes of their single parent and thus the newly created individual is genetically and physically similar to the parent or an exact clone of the parent. Asexual reproduction is the primary form of reproduction for single-celled organisms such as archaea and eubacteria, bacteria. Many Eukaryote, eukaryotic organisms including plants, animals, and Fungus, fungi can also reproduce asexually. In Vertebrate, vertebrates, the most common form of asexual reproduction is parthenogenesis, which is typically used as an alternative to sexual reproduction in times when reproductive opportunities are limited. Some Monitor lizard, monitor lizards, including Komodo dragons, can reproduce asexually. While all prokaryotes reproduce without the fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspergillum
An aspergillum ("little sprinkler", less commonly, aspergilium, aspergil or asperger) is a Christian liturgical implement used to sprinkle holy water. It comes in three forms: a freshly cut hyssop branch, a brush-like bundle that is dipped in the holy water and shaken, and a perforated, mace-like metal ball with a handle. Some have sponges or internal reservoirs that dispense holy water when shaken, while others must periodically be dipped in an aspersorium (holy water bucket, known to art historians as a situla). Uses Christianity An aspergillum is used in Roman Catholic, Lutheran and Anglican ceremonies, including the Rite of Baptism and during the Easter Season. In addition, a priest will use the aspergillum to bless the candles during Candlemas services and the palms during Palm Sunday Mass. At a requiem, if a coffin is present, the priest will sprinkle holy water on the coffin. The aspergillum can be used in other manners where sprinkling of holy water is appropri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mold
A mold () or mould () is one of the structures that certain fungus, fungi can form. The dust-like, colored appearance of molds is due to the formation of Spore#Fungi, spores containing Secondary metabolite#Fungal secondary metabolites, fungal secondary metabolites. The spores are the dispersal units of the fungi. Not all fungi form molds. Some fungi form mushrooms; others grow as unicellular organism, single cells and are called microfungi (for example yeasts). A large and taxonomy (biology), taxonomically diverse number of fungal species form molds. The growth of hyphae results in discoloration and a fuzzy appearance, especially on food. The network of these tubular branching hyphae, called a mycelium, is considered a single organism. The hyphae are generally transparent, so the mycelium appears like very fine, fluffy white threads over the surface. Cross-walls (septa) may delimit connected compartments along the hyphae, each containing one or multiple, genetically identical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henn
Henn is a both a surname and an Estonian masculine given name. Notable people with the name include: As a given name * Henn-Ants Kurg (1898–1943), Estonian military colonel and diplomat * Henn Pärn (born 1941), Estonian politician * Henn Põlluaas (born 1960), Estonian politician * Henn Põlluste (born 1952), Estonian wrestler and wrestling coach * Henn Saari (1924–1999), Estonian linguist * Henn Treial (1905–1941), Estonian journalist, editor and politician As a surname * Alexander Henn, German anthropologist * Arthur Henn (other) * Bernhart Henn (1817–1865), American politician * Carrie Henn, American actress * Christian Henn (born 1964), German road racing cyclist * Dirk Henn (born 1960), German-style board game designer * Guy Henn (1909–1998), Australian doctor and politician * Hans Henn (20th century), West German bobsledder * Harry George Henn (1919–1994), American law professor * Henry Henn (1858–1931), Church of England bishop * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Bywater Grove
William Bywater Grove (24 October 1848 – 6 January 1938), was an English biologist, in particular a botanist and microbiologist. He is remembered in particular as a mycologist. He died in 1938 on the sixth of January when he was 89.New York Botanical Garden Archives. Grove, W.B. (William Bywater), 1848–193/ref> Early life and teaching career He was born in Birmingham, England. From 1887 to 1900 he was headmaster of the St Edmunds High School for boys, Birmingham. One of the pupils at that school during that period was Augustus Daniel Imms, a prominent entomologist. From 1905 to 1927 Grove lectured in botany at Birmingham Municipal Technical School. Research work and publications Grove was the Honorary Curator of the Fungus Herbarium at the University of Birmingham. He received the Midland Union of Natural History Societies's Darwin Medal in 1884, for "for a monograph on the Pilobolidæ and other botanical papers", published in their journal, ''The Midland Naturalist''. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otto Kuntze
Carl Ernst Otto Kuntze (23 June 1843 – 27 January 1907) was a German botanist. Biography Otto Kuntze was born in Leipzig. An apothecary in his early career, he published an essay entitled ''Pocket Fauna of Leipzig''. Between 1863 and 1866, he worked as tradesman in Berlin and traveled through central Europe and Italy. From 1868 to 1873, he had his own factory for essential oils and attained a comfortable standard of living. Between 1874 and 1876, he traveled around the world: the Caribbean, United States, Japan, China, Southeast Asia, Arabian peninsula and Egypt. The journal of these travels was published as "Around the World" (1881). From 1876 to 1878, he studied Natural Science in Berlin and Leipzig and gained his doctorate in Freiburg with a monography of the genus ''Cinchona''. He edited the botanical collection from his world voyage encompassing 7,700 specimens in Berlin and Kew Gardens. The publication came as a shock to botany, since Kuntze had entirely revised taxono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antonino Borzì
Antonino Borzì (20 August 1852, in Castroreale – 24 August 1921, in Lucca) was an Italian botanist. Life and career Antonino Borzì became a professor of botany at the University of Palermo in 1879 and at the University of Messina in 1892. In 1889 he was involved in reestablishing the Orto Botanico "Pietro Castelli" dell'Università di Messina. From 1892 to 1921 he was director of Orto botanico di Palermo. Antonino Borzì was the first who described the biopolymer cyanophycin in 1887. Works (selection) * . Messina, 1883-1894 * . Palermo, 1894-1909 * . Messina, 1885 * . Messina, 1884 * . Messina, 1886 * . Palermo, 1905 * . Rome, 1911 * . 1915 * . Palermo, 1917 * . Rome, 1920 {{DEFAULTSORT:Borzi, Antonino 1852 births 1921 deaths 19th-century Italian botanists 20th-century Italian botanists Academic staff of the University of Palermo Academic staff of the University of Messina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
