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Angular Leaf Scorch
''Pseudopezicula'' is a genus of fungi in the family Helotiaceae. Circumscribed by mycologist Richard Korf in 1986, the genus contains two species that cause angular leaf scorch disease on grape A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus ''Vitis''. Grapes are a non- climacteric type of fruit, generally occurring in clusters. The cultivation of grapes began perhaps 8,000 years ago, ...s. References Hypocreales genera Helotiaceae Taxa described in 1986 {{Leotiomycetes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudopezicula Tetraspora
''Pseudopezicula tetraspora'' is a species of fungus in the family Helotiaceae. Found in North America, it is a plant pathogen that infects grape A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus ''Vitis''. Grapes are a non- climacteric type of fruit, generally occurring in clusters. The cultivation of grapes began perhaps 8,000 years ago, ..., causing a disease known as "angular leaf scorch". Hosts and symptoms The hosts of ''P. tetraspora'' include some plants of the family Vitaceae. Angular leaf scorch of grapevines has been observed on 18 species of grapevines ''Vitis'', on interspecific hybrids of ''Vitis'', and on Virginia creeper ''Parthenocissus quiniquefolia''. An early symptom of angular leaf scorch of grapevines is the presence of faint chlorotic lesions near major veins on the leaf surface. As the disease progresses, the lesions spread, changing from yellow to reddish brown. Reddening/browning of major leaf veins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudopezicula Tracheiphila
''Pseudopezicula tracheiphila'' is a species of fungus in the family Helotiaceae that is found in Europe. It is a plant pathogen Plant pathology (also phytopathology) is the scientific study of diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomyc ... that affects grapes. References Fungi described in 1903 Fungi of Europe Fungal grape diseases Helotiaceae Fungus species {{fungus-fruit-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi
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'' (''t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helotiaceae
The Helotiaceae are a family of fungi in the order Helotiales. The distribution of species in the family are widespread, and typically found in tropical areas. There are 117 genera and 826 species in the family. A question mark after the genus name means that according to the 2007 Outline of Ascomycota, the placement of that genus in this family is uncertain. A '' Allophylaria'' — ''Ameghiniella'' — '' Aquadiscula'' — '' Ascocalyx'' — '' Ascoclavulina'' — ''Ascocoryne'' — '' Ascotremella'' — ''Austrocenangium'' B ''Banksiamyces?'' — '' Belonioscyphella'' — '' Bioscypha'' — ''Bisporella'' — ''Bryoscyphus'' — ''Bulgariella'' — ''Bulgariopsis'' C ''Calloriopsis?'' — ''Calycellinopsis'' — ''Capillipes'' — ''Carneopezizella'' — ''Cenangiopsis'' — ''Cenangium'' — ''Cenangiumella'' — '' Chloroscypha'' — '' Claussenomyces'' — ''Cordierites'' — '' Crocicreas'' — ''Crumenella'' — '' Crumenulopsis'' — ''Cudoniella'' D '' Denc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circumscription (taxonomy)
In biological taxonomy, circumscription is the content of a taxon, that is, the delimitation of which subordinate taxa are parts of that taxon. If we determine that species X, Y, and Z belong in Genus A, and species T, U, V, and W belong in Genus B, those are our circumscriptions of those two genera. Another systematist might determine that T, U, V, W, X, Y, and Z all belong in genus A. Agreement on circumscriptions is not governed by the Codes of Zoological or Botanical Nomenclature, and must be reached by scientific consensus. A goal of biological taxonomy is to achieve a stable circumscription for every taxon. This goal conflicts, at times, with the goal of achieving a natural classification that reflects the evolutionary history of divergence of groups of organisms. Balancing these two goals is a work in progress, and the circumscriptions of many taxa that had been regarded as stable for decades are in upheaval in the light of rapid developments in molecular phylogenetics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Korf
Richard Paul "Dick" Korf (May 28, 1925 – August 20, 2016) was an American mycologist and founding co-editor of the journal ''Mycotaxon''. He was a preeminent figure in the study of discomycetes and made significant contributions to the field of fungal nomenclature and taxonomy. Korf was professor emeritus of mycology at Cornell University and director emeritus of Cornell University's Plant Pathology Herbarium. Early life and education Korf was born on May 28, 1925, to an upper-middle-class family with homes in Westchester County, New York, and New Fairfield, Connecticut. While attending the prestigious Riverdale Country School in New York City, Korf was placed in charge of his biology class after their teacher joined the military. "In retrospect," Korf wrote, "I am convinced that this experience had an enormous impact on my future and on my decision to enter the teaching profession." In 1942, shortly after his 17th birthday, Korf enrolled at Cornell University "with the vagu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grape
A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus ''Vitis''. Grapes are a non- climacteric type of fruit, generally occurring in clusters. The cultivation of grapes began perhaps 8,000 years ago, and the fruit has been used as human food over history. Eaten fresh or in dried form (as raisins, currants and sultanas), grapes also hold cultural significance in many parts of the world, particularly for their role in winemaking. Other grape-derived products include various types of jam, juice, vinegar and oil. History The Middle East is generally described as the homeland of grape and the cultivation of this plant began there 6,000–8,000 years ago. Yeast, one of the earliest domesticated microorganisms, occurs naturally on the skins of grapes, leading to the discovery of alcoholic drinks such as wine. The earliest archeological evidence for a dominant position of wine-making in human culture dates from 8,000 years ago in Georg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypocreales Genera
The Hypocreales are an order of fungi within the class Sordariomycetes. In 2008, it was estimated that it contained some 237 genera, and 2647 species in seven families. Since then, a considerable number of further taxa have been identified, including an additional family, the Stachybotryaceae. According to the Catalog of Life, the Hypocreales contains 6 families, 137 genera, and 1411 species. Species of Hypocreales are usually recognized by their brightly colored, perithecial ascomata, or spore-producing structures. These are often yellow, orange or red. Genera ''incertae sedis'' According to a 2020 review of fungal classification, the following genera within the Hypocreales have an uncertain taxonomic placement (''incertae sedis''), and have not been assigned to any family: *'' Acremoniopsis'' – 1 sp. *'' Berkelella'' – 2 spp. *'' Bulbithecium'' – 1 sp. *'' Cephalosporiopsis'' – 10 spp. *'' Chondronectria'' – 1 sp. *'' Cylindronectria'' – 1 sp. *'' Diploos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
