|
Fusarium
''Fusarium'' is a large genus of filamentous fungi, part of a group often referred to as hyphomycetes, widely distributed in soil and associated with plants. Most species are harmless saprobes, and are relatively abundant members of the soil microbial community. Some species produce mycotoxins in cereal crops that can affect human and animal health if they enter the food chain. The main toxins produced by these ''Fusarium'' species are fumonisins and trichothecenes. Despite most species apparently being harmless (some existing on the skin as commensal members of the skin flora), some ''Fusarium'' species and subspecific groups are among the most important fungal pathogens of plants and animals. The name of ''Fusarium'' comes from Latin ''fusus'', meaning a spindle. Taxonomy The taxonomy of the genus is complex. A number of different schemes have been used, and up to 1,000 species have been identified at times, with approaches varying between wide and narrow concepts of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusarium Graminearum
''Gibberella zeae'', also known by the name of its anamorph ''Fusarium graminearum'', is a fungal plant pathogen which causes fusarium head blight (FHB), a devastating disease on wheat and barley. The pathogen is responsible for billions of dollars in economic losses worldwide each year. Infection causes shifts in the amino acid composition of wheat, resulting in shriveled kernels and contaminating the remaining grain with mycotoxins, mainly deoxynivalenol (DON), which inhibits protein biosynthesis; and zearalenone, an estrogenic mycotoxin. These toxins cause vomiting, liver damage, and reproductive defects in livestock, and are harmful to humans through contaminated food. Despite great efforts to find resistance genes against ''F. graminearum'', no completely resistant variety is currently available. Research on the biology of ''F. graminearum'' is directed towards gaining insight into more details about the infection process and reveal weak spots in the life cycle of this patho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusarium Bubigeum
''Fusarium'' is a large genus of filamentous fungi, part of a group often referred to as hyphomycetes, widely distributed in soil and associated with plants. Most species are harmless saprobes, and are relatively abundant members of the soil microbial community. Some species produce mycotoxins in cereal crops that can affect human and animal health if they enter the food chain. The main toxins produced by these ''Fusarium'' species are fumonisins and trichothecenes. Despite most species apparently being harmless (some existing on the skin as commensal members of the skin flora), some ''Fusarium'' species and subspecific groups are among the most important fungal pathogens of plants and animals. The name of ''Fusarium'' comes from Latin ''fusus'', meaning a spindle. Taxonomy The taxonomy of the genus is complex. A number of different schemes have been used, and up to 1,000 species have been identified at times, with approaches varying between wide and narrow concepts of speci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusarium Circinatum
''Fusarium circinatum'' is a fungal plant pathogen that causes the serious disease pitch canker on pine trees and Douglas firs (''Pseudotsuga menziesii''). The most common hosts of the pathogen include slash pine (''Pinus elliottii''), loblolly pine (''Pinus taeda''), Monterey pine ('' Pinus radiata''), Mexican weeping pine ('' Pinus patula''), and Douglas fir. Like other ''Fusarium'' species in the phylum Ascomycota, it is the asexual reproductive state of the fungus and has a teleomorph, ''Gibberella circinata''. Distribution This fungus is believed to have originated in Mexico. It spread to the eastern United States in 1946 and by 1986 had reached the western United States. It was first recorded in Japan in the 1980s, in South Africa in 1990, in Chile and Spain in the mid 1990s and in Italy in 2007. Host species In California this canker has been recorded on nine different species of pine (''Pinus'') and on Douglas fir (''Pseudotsuga menziesii''). In Europe and Asia it has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusarium Culmorum
''Fusarium culmorum'' is a fungal plant pathogen and the causal agent of seedling blight, foot rot, ear blight, stalk rot, common root rot and other diseases of cereals, grasses, and a wide variety of monocots and dicots. In coastal dunegrass (''Leymus mollis''), ''F. culmorum'' is a nonpathogenic symbiont conferring both salt and drought tolerance to the plant. Identification Colonies grow rapidly on potato dextrose agar. The aerial mycelium is whitish to yellow, tan or pale orange, but becomes brown to dark brown to red-brown with age. Under alternating conditions of light and temperature, rings of spore masses may be formed by some isolates. Macroconidia Microconidia are absent, but macroconidia are usually abundant. The sporodochia are orange to brown color and relatively common. The macroconidia are thick and bluntly pointed at their apex, and conspicuously wider above the center of the spore. The dorsal side is somewhat curved, but the ventral side is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichothecenes
The trichothecenes are a large family of chemically related mycotoxins. They are produced by various species of ''Fusarium'', ''Myrothecium'', ''Trichoderma''/''Podostroma'', '' Trichothecium'', ''Cephalosporium'', '' Verticimonosporium'', and ''Stachybotrys''. Chemically, trichothecenes are a class of sesquiterpenes. The determining structural features causing the biological activity of trichothecenes are the 12,13-epoxy ring, the presence of hydroxyl or acetyl groups at appropriate positions on the trichothecene nucleus, and the structure and position of the side-chain. They are produced on many different grains such wheat, oats or maize by various ''Fusarium'' species including ''F. graminearum'', ''F. sporotrichioides'', ''F. poae'' and ''F. equiseti''. Some molds that produce trichothecene mycotoxins, for example ''Stachybotrys chartarum'', can grow in damp indoor environments. It has been found that macrocyclic trichothecenes produced by ''S. chartarum'' can become airborne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusarium Fujikuroi
''Gibberella fujikuroi'' is a fungal plant pathogen. It causes '' bakanae'' disease in rice seedlings. Another name is foolish seedling disease. It gets that name because the seeds can be infected, leading to disparate outcomes for the plant. There are not many diseases that initiate similar symptoms as bakanae. Hosts and symptoms ''Gibberella fujikuroi'' is most widely known for its disease producing capabilities in rice, but barley, millet, sugarcane and maize are also susceptible. In all infected plants, similar symptoms have been found, though rice has been most predominantly studied. The most telltale symptom of Bakanae is the tall, spindly look of the plant. This is a result of the gibberellins, or growth hormones, the fungus secretes. Infected plants are easy to pick out, then, as they often rise above the rest of the healthy plants with regularly secreted growth hormones. However, it is also possible that stunting may occur, along with Chlorosis of the leaves of the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clades
A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, the equivalent Latin term ''cladus'' (plural ''cladi'') is often used in taxonomical literature. The common ancestor may be an individual, a population, or a species ( extinct or extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed monophyletic (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming taxa that are not clades; that is, taxa that are not monophyletic. Some of the relationships between organis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusarium Crookwellense
''Fusarium crookwellense'' (syn. ''Fusarium cerealis'') is a species of fungus in the family Nectriaceae. It is known as a plant pathogen that infects agricultural crops. The fungus was first described in 1982 after it was found infecting potatoes in Australia.Sugiura, Y., et al. (1993)''Fusarium poae'' and ''Fusarium crookwellense'', fungi responsible for the natural occurrence of nivalenol in Hokkaido.''Applied and Environmental Microbiology'' 59(10) 3334-8. It causes plant diseases such as corn ear rot and wheat head blight. It has also been found on hops causing a necrotic blight on the cones. Like other species in genus ''Fusarium'', this fungus produces mycotoxins. It is a source of nivalenol, 4-acetylnivalenol, and zearalenone.Sugiura, Y., et al. (1994)''Fusarium crookwellense'', a newly isolated fungus from wheat in Japan: Its mycotoxin production and pathogenicity to wheat and barley.''Mycoscience'' 35 77-82. See also * List of potato diseases This is a list of dise ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusarium Avenaceum
''Gibberella avenacea'' is a fungal 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, oomy .... References External links USDA ARS Fungal Database avenacea Fungal plant pathogens and diseases Fungi described in 1967 {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusarium Arthrosporioides
''Fusarium arthrosporioides'' is a fungal plant pathogen affecting chickpea. See also * List of chickpea diseases This is a list of diseases of chickpeas (''Cicer arietinum'') Nematodes, parasitic Viral diseases Phytoplasmal diseases {, class="wikitable" style="clear" ! colspan=2, Phytoplasmal diseases , - , Phyllody , , Phytoplasma , - Refer ... References arthrosporioides Fungal plant pathogens and diseases Pulse crop diseases Fungi described in 1915 {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusarium Affine
Fusarium affine is a fungal plant pathogen affecting tobacco. See also * List of tobacco diseases References External links affine Affine may describe any of various topics concerned with connections or affinities. It may refer to: * Affine, a relative by marriage in law and anthropology * Affine cipher, a special case of the more general substitution cipher * Affine comb ... Fungal plant pathogens and diseases Tobacco diseases {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusarium Acremoniopsis
''Fusarium acremoniopsis'' is a fungus species of the genus ''Fusarium ''Fusarium'' is a large genus of filamentous fungi, part of a group often referred to as hyphomycetes, widely distributed in soil and associated with plants. Most species are harmless saprobes, and are relatively abundant members of the soil mi ...''. References Further reading * acremoniopsis Fungi described in 1915 {{hypocreales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_Sacc._2250074.jpg "Click for more on -> Fusarium Avenaceum")