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Phoma Clematidina
''Calophoma clematidina'' is a fungal plant pathogen and the most common cause of the disease clematis wilt affecting large-flowered varieties of ''Clematis''. Symptoms of infection include leaf spotting, wilting of leaves, stems or the whole plant and internal blackening of the stem, often at soil level.van de Graaf P. (1999). ''Biology and Control of Phoma clematidina, causal Agent of Clematis Wilt''. PhD thesis, University of Derby, Derby, UK. Infected plants growing in containers may also develop root rot. 3, 3·7·67. Taxonomy The asexual stage (anamorph) of the fungus was first described by the German botanist and mycologist Felix von Thümen in 1880 as ''Ascochyta clematidina''. Based on new scientific insights into the differences in spore formation between species, it was reclassified as ''Phoma clematidina'' by the Dutch mycologist Gerhard Boerema in 1978. Boerema G.H. and Dorenbosch M.M.J. (1979). "Mycologisch taxonomisch onderzoek". ''Verslagen en Mededelingen Plantenz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungus
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] |
Mating Type
Mating types are the microorganism equivalent to sexes in multicellular lifeforms and are thought to be the ancestor to distinct Sex, sexes. They also occur in macro-organisms such as fungi. Definition Mating types are the microorganism equivalent to sex in higher organisms and occur in isogamy, isogamous and anisogamous species. Depending on the group, different mating types are often referred to by numbers, letters, or simply "+" and "−" instead of "male" and "female", which refer to "Sex, sexes" or differences in size between gametes. Syngamy can only take place between gametes carrying different mating types. Occurrence Reproduction by mating types is especially prevalent in Fungus, fungi. Filamentous ascomycetes usually have two mating types referred to as "MAT1-1" and "MAT1-2", following the yeast mating-type locus (MAT). Under standard nomenclature, MAT1-1 (which may informally be called MAT1) encodes for a regulatory protein with an alpha box motif, while MAT1-2 (informal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vector (epidemiology)
In epidemiology, a disease vector is any living agent that carries and transmits an infectious pathogen to another living organism; agents regarded as vectors are organisms, such as parasites or microbes. The first major discovery of a disease vector came from Ronald Ross in 1897, who discovered the malaria pathogen when he dissected a mosquito. Arthropods Arthropods form a major group of pathogen vectors with mosquitoes, flies, sand flies, lice, fleas, ticks, and mites transmitting a huge number of pathogens. Many such vectors are haematophagous, which feed on blood at some or all stages of their lives. When the insects feed on blood, the pathogen enters the blood stream of the host. This can happen in different ways. The ''Anopheles'' mosquito, a vector for malaria, filariasis, and various arthropod-borne-viruses (arboviruses), inserts its delicate mouthpart under the skin and feeds on its host's blood. The parasites the mosquito carries are usually located in its salivary gla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pycnidia
A pycnidium (plural pycnidia) is an asexual fruiting body produced by mitosporic fungi, for instance in the order Sphaeropsidales ( Deuteromycota, Coelomycetes) or order Pleosporales (Ascomycota, Dothideomycetes). It is often spherical or inversely pearshaped ( obpyriform) and its internal cavity is lined with conidiophores. When ripe, an opening generally appears at the top, through which the pycnidiospore {{Short pages monitor [Baidu] |
Conidia
A conidium ( ; ), sometimes termed an asexual chlamydospore or chlamydoconidium (), is an asexual, non-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. 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 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. The terms microconidia and macroconidia are sometimes used. Conidiogenesis There are two main types of conidium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ADAS (company)
ADAS is a UK-based independent agricultural and environmental consultancy and provider of rural development and policy advice. ADAS provides independent science-based research, consultancy and contracting services to a wide range of organisations in both the private and public sectors, throughout the UK and internationally. History The UK's National Agricultural Advisory Service (NAAS) was established in 1946 as the advisory and research arm of the Ministry of Agriculture, Fisheries and Food (MAFF) because of the harsh food rationing of World War II that continued in the UK into the early 1950s. Plant pathology, entomology, soil Soil, also commonly referred to as earth or dirt Dirt is an unclean matter, especially when in contact with a person's clothes, skin, or possessions. In such cases, they are said to become dirty. Common types of dirt include: * Debri ... and other specialist advisers throughout the country advised farmers and growers how to maximi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Derby
, mottoeng = Experience is the best teacher , established = 1851 – Teacher Training College1992 – gained university status , type = Public , chancellor = William Cavendish, Earl of Burlington , vice_chancellor = Professor Kathryn Mitchell , head_label = Chairman of Council , head = Chris Hughes , students = HE () , undergrad = () , postgrad = () , other = 4,650 FE , city = Derby , country = England, UK , coor = , campus = Urban , former_names = Derby College, Derby College of Art and Technology, Derby Lonsdale College of Higher Education, Derbyshire College of Higher Education , colours = Blue , website = , affiliations = ACU EMUAEQUISERASMUSFlorence Nightingale Foun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Canterbury
The University of Canterbury ( mi, Te Whare Wānanga o Waitaha; postnominal abbreviation ''Cantuar.'' or ''Cant.'' for ''Cantuariensis'', the Latin name for Canterbury) is a public research university based in Christchurch, New Zealand. It was founded in 1873 as Canterbury College, the first constituent college of the University of New Zealand. It is New Zealand's second-oldest university, after the University of Otago, itself founded four years earlier in 1869. Its original campus was in the Christchurch Central City, but in 1961 it became an independent university and began moving out of its original neo-gothic buildings, which were re-purposed as the Christchurch Arts Centre. The move was completed on 1 May 1975 and the university now operates its main campus in the Christchurch suburb of Ilam. The university is well known for its Engineering and Science programmes, with its Civil Engineering programme ranked 9th in the world (Academic Ranking of World Universities, 2021). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coniothyrium
''Coniothyrium'' is a genus of fungi in the family Phaeosphaeriaceae. The genus was circumscribed by Czech mycologist August Carl Joseph Corda August Carl Joseph Corda (1809–1849) was a Czech physician and mycologist. This botanist is denoted by the author abbreviation when citing a botanical name. Early life and education Corda was born in Reichenberg (now Liberec), Bohemia on No ... in 1840. Species *'' C. acaciae'' *'' C. ampelopsidis-hederaceae'' *'' C. bambusicola'' *'' C. batumense'' *'' C. boydeanum'' *'' C. caespitulosum'' *'' C. carpaticum'' *'' C. celmisiae'' *'' C. celtidis-australis'' *'' C. cerealis'' *'' C. clematidis-rectae'' *'' C. coffeae'' *'' C. concentricum'' *'' C. conicola'' *'' C. conoideum'' *'' C. conorum'' *'' C. crepinianum'' *'' C. cupressacearum'' *'' C. cydoniae'' *'' C. dispersellum'' *'' C. dracaenae'' *'' C. equiseti'' *'' C. ferrarisianum'' *'' C. fluviatile'' *'' C. fraxini'' *'' C. genistae'' *'' C. glomerulatum'' *'' C. henriquesii'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montana State University Bozeman
Montana State University (MSU) is a public land-grant research university in Bozeman, Montana. It is the state's largest university. MSU offers baccalaureate degrees in 60 fields, master's degrees in 68 fields, and doctoral degrees in 35 fields through its nine colleges. More than 16,700 students attended MSU in fall 2019, taught by 796 full-time and 547 part-time faculty. MSU is classified among "R1: Doctoral Universities – Very high research activity" and had research expenditures of $129.6 million in 2017. Located on the south side of Bozeman, the university's campus is the largest in the state. The university's main campus in Bozeman is home to KUSM television, KGLT radio, and the Museum of the Rockies. MSU provides outreach services to citizens and communities statewide through its agricultural experiment station and 60 county and reservation extension offices. The elevation of the campus is above sea level. History Establishment of the college Montana became a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invasive Plant
An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. The term can also be used for native species that become harmful to their native environment after human alterations to its food webfor example the purple sea urchin (''Strongylocentrotus purpuratus'') which has decimated kelp forests along the northern California coast due to overharvesting of its natural predator, the California sea otter (''Enhydra lutris''). Since the 20th century, invasive species have become a serious economic, social, and environmental threat. Invasion of long-established ecosystems by organisms is a natural phenomenon, but human-facilitated introductions have greatly increased the rate, scale, and geographic range of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clematis Vitalba
''Clematis vitalba'' (also known as old man's beard and traveller's joy) is a shrub of the family Ranunculaceae. Description ''Clematis vitalba'' is a climbing shrub with branched, grooved stems, deciduous leaves, and scented greeny-white flowers with fluffy underlying sepals. The many fruits formed in each inflorescence have long silky appendages which, seen together, give the characteristic appearance of ''old man's beard''. The grooves along the stems of ''C. vitalba'' can easily be felt when handling the plant. This species is eaten by the larvae of a wide range of moths. This includes many species which are reliant on it as their sole foodplant; including small emerald, small waved umber and Haworth's pug. Range ''C. vitalba'' has a preference for base rich alkaline soils and moist climate with warm summers. The species is native to Eurasia and North Africa. United Kingdom In the UK it is a native plant and is common throughout England south of a line from the River M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
