|
Ophiosphaerella Agrostidis
''Ophiosphaerella'' is a genus of fungi in the family Phaeosphaeriaceae. The genus was described by Italian-Argentinian botanist and mycologist Carlos Luigi Spegazzini in 1909. Several species are pathogens of turfgrass, causing darkly pigmented hyphae on roots known as "dead spot". '' Ophiosphaerella korrae'', '' O. narmari'', and '' O. herpotricha'' affect bermudagrass (''Cynodon'' species), while the latter fungus also causes dead spot in buffalo grass Buffalo grass may refer to * Buffalo grass, sweet vernal grass or vanilla grass (''Anthoxanthum odoratum'') * Buffalo grass (''Bouteloua dactyloides'') * Buffalo grass (''Brachiaria mutica'') * Buffalo grass or sweet grass (''Hierochloe odorata'') ... (''Bouteloua dactyloides''). '' Ophiosphaerella korrae'' is a cause of necrotic ring spot in creeping red fescue (''Festuca rubra''). References Dothideomycetes genera Phaeosphaeriaceae {{Pleosporales stub ... [...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] |
Festuca Rubra
''Festuca rubra'' is a species of grass known by the common name red fescue or creeping red fescue. It is widespread across much of the Northern Hemisphere and can tolerate many habitats and climates. It is best adapted to well-drained soils in cool, temperate climates; it prefers shadier areas and is often planted for its shade tolerance. Wild animals browse it, but it has not been important for domestic forage due to low productivity and palatability. It is also an ornamental plant for gardens. Description ''Festuca rubra'' is perennial and has sub-species that have rhizomes and/or form bunchgrass tufts. It mainly exists in neutral and acidic soils. It can grow between 2 and 20 cm tall. Like all fescues, the leaves are narrow and needle like, making it less palatable to livestock. The swards that it forms are not as tufted as sheep's fescue (''Festuca ovina'') or wavy hair grass (''Deschampsia flexuosa''). The tufted nature is what gives the grass its springy characterist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buffalo Grass '')
{{Plant common name ...
Buffalo grass may refer to * Buffalo grass, sweet vernal grass or vanilla grass (''Anthoxanthum odoratum'') * Buffalo grass (''Bouteloua dactyloides'') * Buffalo grass (''Brachiaria mutica'') * Buffalo grass or sweet grass (''Hierochloe odorata'') * Buffalo grass or St. Augustine grass (''Stenotaphrum secundatum'') * Buffalograss, another name for Guinea grass (''Panicum maximum'') * Buffalo grass or carabao grass (''Paspalum conjugatum ''Paspalum conjugatum'', commonly known as carabao grass or hilo grass, is a tropical to subtropical perennial grass. It is originally from the American tropics, but has been naturalized widely in tropical Southeast Asia and Pacific Islands. It h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bermudagrass
''Cynodon dactylon'', commonly known as Bermuda grass, is a grass found worldwide. It is native to Europe, Africa, Australia and much of Asia. It has been introduced to the Americas. Although it is not native to Bermuda, it is an abundant invasive species there. In Bermuda it has been known as "crab grass" (also a name for ''Digitaria sanguinalis''). It is also known by various names as ''Dhoob'', ''dūrvā'' grass, ''ethana'' grass, ''dubo'', dog grass, dog's tooth grass, Bahama grass, crab grass, devil's grass, couch grass, Indian ''doab'', ''arugampul'', grama, wiregrass and scutch grass. Description The blades are a grey-green colour and are short, usually long with rough edges. The erect stems can grow tall. The stems are slightly flattened, often tinged purple in colour. The seed heads are produced in a cluster of two to six spikes together at the top of the stem, each spike long. It has a deep root system; in drought situations with penetrable soil, the root system ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypha
A hypha (; ) is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium. Structure A hypha consists of one or more cells surrounded by a tubular cell wall. In most fungi, hyphae are divided into cells by internal cross-walls called "septa" (singular septum). Septa are usually perforated by pores large enough for ribosomes, mitochondria, and sometimes nuclei to flow between cells. The major structural polymer in fungal cell walls is typically chitin, in contrast to plants and oomycetes that have cellulosic cell walls. Some fungi have aseptate hyphae, meaning their hyphae are not partitioned by septa. Hyphae have an average diameter of 4–6 µm. Growth Hyphae grow at their tips. During tip growth, cell walls are extended by the external assembly and polymerization of cell wall components, and the internal production of new cell membrane. The S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turfgrass
A lawn is an area of soil-covered land planted with grasses and other durable plants such as clover which are maintained at a short height with a lawnmower (or sometimes grazing animals) and used for aesthetic and recreational purposes. Lawns are usually composed only of grass species, subject to weed and pest control, maintained in a green color (e.g., by watering), and are regularly mowed to ensure an acceptable length. Lawns are used around houses, apartments, commercial buildings and offices. Many city parks also have large lawn areas. In recreational contexts, the specialised names turf, pitch, field or green may be used, depending on the sport and the continent. The term "lawn", referring to a managed grass space, dates to at least than the 16th century. With suburban expansion, the lawn has become culturally ingrained in some areas of the world as part of the desired household aesthetic.Robbins, PaulLawn People: How Grasses, Weeds, and Chemicals Make Us Who We Are P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants. Not included are ectoparasites like insects, mites, vertebrate, or other pests that affect plant health by eating plant tissues. Plant pathology also involves the study of pathogen identification, disease etiology, disease cycles, economic impact, plant disease epidemiology, plant disease resistance, how plant diseases affect humans and animals, pathosystem genetics, and management of plant diseases. Overview Control of plant diseases is crucial to the reliable production of food, and it provides significant problems in agricultural use of land, water, fuel and other inputs. Plants in both natural and cultivated populat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carlos Luigi Spegazzini
Carlo Luigi Spegazzini, in Spanish Carlos Luis Spegazzini (20 April 1858 – 1 July 1926), was an Italian-born Argentinian botanist and mycologist. On the 1881/1882 expedition led by Giacomo Bove to explore Patagonia and Tierra del Fuego, the Italian Decio Vinciguerra was officially both zoologist and botanist, but in fact Spegazzini handled the botanical work. Spegazzini published about 100 scientific papers on vascular plants, describing around 1000 new taxa. He was a professor at the University of La Plata and Buenos Aires in Argentina, curator of the herbarium of the National Department of Agriculture, first head of the herbarium of Museo de la Plata, and founder of an arboretum and an institute of mycology in La Plata city. In 1924 he edited the journal ''Revista Argentina de Botánica'', but only four issues were published before his death. In a 1924 ''Mycologia'' publication, William Murrill recounted his time visiting with Spegazzini, who was then 66 years old: Dr Spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phaeosphaeriaceae
The Phaeosphaeriaceae are a family of fungi in the order Pleosporales. Species in the family have a cosmopolitan distribution, and are generally nectrotrophic or saprobic on a wide range of plants. Genera list *'' Barria'' *'' Bricookea'' *'' Carinispora'' *'' Chaetoplea'' - placement tentative *'' Didymocyrtis'' *''Eudarluca'' - placement tentative *'' Hadrospora'' *'' Isthmosporella'' *'' Katumotoa'' *'' Lautitia'' - placement tentative *'' Metameris'' *'' Mixtura'' *'' Neophaeosphaeria'' *'' Nodulosphaeria'' *'' Ophiosphaerella'' *''Phaeosphaeria'' *'' Phaeosphaeriopsis'' *'' Setomelanomma'' * ''Stagonospora ''Stagonospora'' is a genus of fungi clustering in the Phaeosphaeriaceae (Quaedvlieg). Several of the species in this genus are plant pathogens. Taxonomy Previously included species include ''S. curtisii''= ''Peyronellaea curtisii ''Pey ...'' *'' Teratosphaeria'' - placement tentative *'' Wilmia'' References Bibliography Dothideomycetes families Ta ... [...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] |
Ophiosphaerella Agrostidis
''Ophiosphaerella'' is a genus of fungi in the family Phaeosphaeriaceae. The genus was described by Italian-Argentinian botanist and mycologist Carlos Luigi Spegazzini in 1909. Several species are pathogens of turfgrass, causing darkly pigmented hyphae on roots known as "dead spot". '' Ophiosphaerella korrae'', '' O. narmari'', and '' O. herpotricha'' affect bermudagrass (''Cynodon'' species), while the latter fungus also causes dead spot in buffalo grass Buffalo grass may refer to * Buffalo grass, sweet vernal grass or vanilla grass (''Anthoxanthum odoratum'') * Buffalo grass (''Bouteloua dactyloides'') * Buffalo grass (''Brachiaria mutica'') * Buffalo grass or sweet grass (''Hierochloe odorata'') ... (''Bouteloua dactyloides''). '' Ophiosphaerella korrae'' is a cause of necrotic ring spot in creeping red fescue (''Festuca rubra''). References Dothideomycetes genera Phaeosphaeriaceae {{Pleosporales stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
