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Topic: Fusarium


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In the News (Sun 27 Dec 09)

  
  Fusarium Species
Fusarium is one of the emerging causes of opportunistic mycoses [63, 66, 531, 916, 1426, 1581, 1826, 1921, 2297, 2304].
Efficacy of liposomal amphotericin B (AmBisome) in the eradication of Fusarium infection in a leukaemic patient.
Invasive infection with Fusarium chlamydosporum in a patient with aplastic anemia.
www.doctorfungus.org /thefungi/fusarium.htm   (2385 words)

  
  Fusarium - Wikipedia, the free encyclopedia
Fusarium is a genus of filamentous fungi widely distributed on plants and in the soil.
Fusarium may produce mycotoxins in cereal crops that can affect human and animal health, when it enters the food chain.
The main toxins produced by Fusarium are fumonisins related to esophageal cancer in humans, and trichothecenes, toxic metabolites which inhibit eukaryotic protein biosynthesis.
en.wikipedia.org /wiki/Fusarium   (163 words)

  
 Diseases in Container Tree Nurseries - Fusarium Root Rot
Fusarium root rot is one of the most common diseases of conifer seedlings in the world and is widespread in North American nurseries (Bloomberg 1981, Smith 1975).
Fusarium wilt affects many different horticultural plants and is the most important pathological problem of plants grown in artificial growing media (Couteaudier and Alabouvette 1981).
Fusarium is a common rhizosphere inhabitant, and the disease only develops when the seedling becomes stressed, by drought or heat for example.
www.bugwood.org /container/fusarium.html   (675 words)

  
 Fusarium Wilt & Yellows of Sugar Beet & Dry Bean
Fusarium yellows, also known as Fusarium wilt, is a fungal disease (caused by Fusarium oxysporum Schlechtend.:Fr.) with presumed host-specific strains that attack sugar beet (F.
Fusarium wilt losses in dry bean fields can vary from a trace to more than 30 percent crop loss; in addition seed size can be reduced 10 percent to 15 percent.
Symptoms of Fusarium yellows of sugar beet include wilting of the foliage, yellowing between the veins in the leaves (interveinal chlorosis), and a darkening of the rings in the taproot.
www.ext.colostate.edu /pubs/crops/02950.html   (1612 words)

  
 Fusarium oxysporum
In general, fusarium wilts first appear as slight vein clearing on the outer portion of the younger leaves, followed by epinasty (downward drooping) of the older leaves.
In older plants, vein clearing and leaf epinasty are often followed by stunting, yellowing of the lower leaves, formation of adventitious roots, wilting of leaves and young stems, defoliation, marginal necrosis of remaining leaves, and finally death of the entire plant (Agrios, 1988).
Browning of the [vascular tissue] is strong evidence of fusarium wilt.
www.extento.hawaii.edu /kbase/crop/Type/f_oxys.htm   (987 words)

  
 Fusarium Diseases of Cucurbits fact sheet
Fusarium wilt of melon is caused by a seed- and soilborne fungus that is specific to melon.
Fusarium crown and foot rot of squash and pumpkin is caused by Fusarium solani f.
avenaceum in Arkansas and Connecticut); and infection of butternut squash by Fusarium sp.
vegetablemdonline.ppath.cornell.edu /factsheets/Cucurbits_Fusarium.htm   (2248 words)

  
 APSnet Feature - Scary Diseases Haunt Pumpkins and Other Cucurbits - Article Link - Fusarium Crown and Foot Rot of ...   (Site not responding. Last check: 2007-10-26)
Fusarium crown and foot rot of squash and pumpkin is caused by a forma specialis of Fusarium solani (Mar.) Sacc.
Fusarium crown and foot rot of squash is caused by F.
Fusarium crown and foot rot occurs sporadically in most areas, and disease severity is dependent on soil moisture and inoculum density.
www.apsnet.org /online/feature/pumpkin/fuscrown.html   (727 words)

  
 Mold-Help.org: FusariumMold Help-The same toxic mold that is in
Fusarium is listed as one capable of causing mycetomas, and it has repeatedly been isolated from human keratitis and corneal ulcers.
Fusarium attacks cells in humans much the way in attacks cells in plants -through the secretion of mycotoxins that it itself is immune to.
The interest in toxigenic Fusarium species is increasing world-wide due to the discovery of a growing number of naturally occurring Fusarium mycotoxins that have practical importance as threats to human and animal health.
mold-help.org /content/view/417/0   (2797 words)

  
 PEA FUSARIUM WILT
Fusarium root rot is the predominant root disease in western Canada.
Fusarium wilt, caused by Fusarium oxysporum, infects through the roots and penetrates into the vascular system, with few symptoms on the root surface.
Fusarium form resting structures called chlamydospores and Rhizoctonia solani survives in the soil as thick-walled mycelium.
paridss.usask.ca /specialcrop/pulse_diseases/pea/fusarium.html   (792 words)

  
 Vegetative compatibility groups of Fusarium oxysporum
cubense, the cause of Fusarium wilt of bananas.
Elmer, W.H. and Stephens, C.T. (1989) Classification of Fusarium oxysporum f.sp.
Hubbard, J.C. and Gerik, J.S. (1993) A new wilt disease of lettuce incited by Fusarium oxysporum f.sp.
www.cdl.umn.edu /Scab/vcg.html   (4425 words)

  
 Category:Fusarium - Wikipedia, the free encyclopedia
The main article for this category is Fusarium.
Fusarium is a genus of fungus which is found worldwide.
Species of Fusarium sometimes infect animals and humans.
en.wikipedia.org /wiki/Category:Fusarium   (72 words)

  
 Food Research Institute Briefings: Fusarium Mycotoxins
Fusaria cause diseases, such as ear rot in corn and head blight and scab in wheat, that affect growth and yield of crops and were estimated to cause a loss of a billion dollars to wheat farmers in the USA in 1993.
At the Fifth European Fusarium Seminar, held in Hungary in August—September 1997, recent data on Fusarium infections in crops, the effects of Fusarium toxins on human and animal health, and different approaches to dealing with them were shared and discussed (1).
Fusarium mycotoxins found in food are generated primarily in the field although some toxin synthesis may occur during storage.
www.wisc.edu /fri/fusarium.htm   (1844 words)

  
 Fusarium Primer
Fusarium is also one of the fungal genera that produce mycotoxins.
Fusarium produces its toxins primarily on corn and other grains infected in the field or after corn is in storage (Agrios, 1988).
Fusarium is a soil inhabitant which overwinters between crops in infected plant debris as mycelium and in its three spore forms.
www.extento.hawaii.edu /kbase/crop/Type/fus_prim.htm   (1035 words)

  
 Wheat Fusarium Head Blight Home Page
Fusarium head blight or head scab is caused by the fungus Fusarium graminearum.
The goal of this experimental predictive system is to help growers assess the risk of Fusarium head blight in their region.
Major outbreaks of Fusarium head blight are associated with specific weather patterns prior flowering of the wheat crop.
www.wheatscab.psu.edu   (142 words)

  
 Fusarium Oxysporum
Fusarium species are more active in warm soils and can stay resident in the soil for years.
When the Kenyans tried to do something about the Fusarium oxysporum f.sp.cubense that was devastating their small-scale banana farms, they found 4 different Fusarium oxysporum races and more than more than 20 different "bridging groups." [7] Scientists in Hawaii have reported over 24 fusarium species there.
Fusarium wilt of Watermelon: Impact of Race 2 of Fusarium oxysporum f.
www.freedomtoexhale.com /disinfo.htm   (2244 words)

  
 UC IPM: UC Management Guidelines for Fusarium Blight on Turfgrass
Fusarium blight first appears as small, circular, grayish green areas, ranging from a few inches up to a foot in diameter.
Fusarium blight can affect a number of cool-season grasses grown in warm weather conditions including bentgrasses, red fescue, tall fescue, perennial ryegrass and centipedegrass, but is most severe on Kentucky bluegrass.
Fusarium blight occurs most commonly in areas that have been stressed for moisture and in areas in full sun.
www.ipm.ucdavis.edu /PMG/r785100511.html   (444 words)

  
 Fusarium and Verticillium Wilt of Tomato
Fusarium wilt, the most prevalent of the two diseases, in Kansas generally occurs in midsummer when air and soil temperatures are high.
Unlike Fusarium wilt, Verticillium wilt causes uniform yellowing and wilting of the lower leaves.
Infection and disease development in Fusarium wilt are favored by warm soil temperatures (80° F) and low soil moisture, while Verticillium wilt develops best at relatively cool (55-75 F) soil temperatures.
www.oznet.ksu.edu /dp_hfrr/extensn/problems/tomwilt.htm   (497 words)

  
 Diagnosis of Fusarium keratitis in an animal model using the polymerase chain reaction.
Fusarium is the most common cause of fungal corneal infection in some parts of the world.
METHODS: Fusarium solani keratitis was induced in three eyes of three rabbits by injection of a suspension of the fungus into the anterior corneal stroma.
The PCR was performed with primers directed against a portion of the Fusarium cutinase gene, and the presence or absence of this amplified target sequence was determined by agarose gel.
www.medscape.com /medline/abstract/9602631?src=emed_ckb_ref_0   (326 words)

  
 Fusarium sporotrichioides cDNA Sequencing
To date, we have isolated over 5000 cDNA clones from Fusarium sporotrichioides in collaboration with Dr. Marian Beremand and her students Andrew Peplow and Andrew Tag at the Department of Plant Pathology and Microbiology at Texas A&M University, College Station, Texas.
The Fusarium sporotrichioides EST's are being generated by Qun Ren in our Genome Center at the University of Oklahoma.
Should you find this data useful and wish to reference it, please acknowledge the Fusarium sporotrichioides cDNA Sequencing Project, and Bruce A. Roe, Qun Ren, Doris Kupfer, HongShing Lai, Marian Beremand, Andrew Peplow and Andrew Tag; this project is supported by funds from the University of Oklahoma, Texas A&M University and the NSF-EPSCoR program.
www.genome.ou.edu /fsporo.html   (435 words)

  
 Fusarium Dry Rot
Dry rot is easily identified by a dry, crumbly decay and the presence of the fungus growing in the rotting tuber (Figures 1 and 2).
Fusarium produces three kinds of spores: microspores, macrospores and chlamydospores.
Fusarium dry rot decay potential can be determined by a simple test.
www.ext.nodak.edu /extpubs/plantsci/rowcrops/pp1039w.htm   (1996 words)

  
 Gene Jockeys Fight Fusarium Head Blight
It is responsible for a disease known as wheat scab, or Fusarium head blight, which causes plump kernels to shrivel and take on an unhealthy, bleached, scab by appearance.
Cell walls of Fusarium are made up, in part, of compounds called chitin and glucan, which the enzymes break down.
A hypha is formed when a Fusarium spore—perhaps carried by wind or rain—lands on a wheat floret and germinates.
www.ars.usda.gov /is/AR/archive/aug02/gene0802.htm   (937 words)

  
 Fusarium wilt
Fusarium wilt of sweet potato; Stem rot (F.
To be sure that the plant is infected by Fusarium wilt, you make a lengthwise cut on the stem at the soil line, near the base.
Or you pull an infected plant, and the roots are partially or totally reddish-brown in color.
www.oisat.org /pests/diseases/fungal/fusarium_wilt.html   (592 words)

  
 Safflower - Fusarium Wilt
Fusarium wilt of safflower is caused by the soil-borne fungus Fusarium oxysporum f.
Vascular discoloration on the main stem is the diagnostic symptom and is usually evident after the initial appearance of foliar symptoms.
Plant high quality seed free of the Fusarium wilt pathogen in warm, well-prepared seedbeds under conditions favorable to rapid seedling emergence.  Resistant varieties are available to race 4 of F.
highplainsipm.org /HpIPMSearch/Docs/FusariumWilt-Safflower.htm   (399 words)

  
 Fusarium Head Blight (Scab) of Small Grains
Fusarium head blight (FHB) or scab is a fungus disease that can occur on all small grain crops but is most commonly seen in North Dakota on spring wheat, durum, and barley.
This fungus is the same one that is frequently associated with stalk rot of corn.
None of the currently available commercial cultivars are immune to Fusarium infection, but differences in partial resistance or tolerance to FHB do occur among different hard red spring wheats.
www.ext.nodak.edu /extpubs/plantsci/smgrains/pp804w.htm   (1883 words)

  
 ID-121: Fumonisin, Vomitoxin, and Other Mycotoxins in Corn Produced by Fusarium Fungi
Certain Fusarium fungi are capable of causing a variety of diseases in corn, including seedling disease, stalk rots, and ear rots.
Where Fusarium kernel or ear rots occur, symptoms often occur on individual kernels or groups of kernels scattered over the ear (Figure 1).
For example, in one study with swine, feed amended with 5 ppm of purified vomitoxin was readily eaten by the animals, whereas they refused to eat feed naturally contaminated with 5 ppm vomitoxin.
www.ca.uky.edu /agc/pubs/id/id121/id121.htm   (4951 words)

  
 Fusarium Dry Rot of Potato fact sheet
Fusarium dry rot is characterized by an internal light to dark brown or fl rot (fig.1) of the potato tuber-and it is usually dry.
Precutting seed puts the tubers at risk for Fusarium dry rot, particularly if the isolate of the fungus is resistant to benzimidazole fungicides.
Plant seed that has a Fusarium problem in warm soil and cover with as little soil as is practical.
vegetablemdonline.ppath.cornell.edu /factsheets/Potato_Fusarium.htm   (1165 words)

  
 Fusarium Head Blight - Pathogen Variation and Virulence
Mesterhazy, A. The role of aggressiveness of Fusarium graminearum isolates in the inoculation tests on wheat in seedling state.
Purss, G. The relationship between strains of Fusarium graminearum Schwabe causing crown rot of various gramineous hosts and stalk rot of maize in Queensland.
Tammen, J. Pathogenicity of Fusarium roseum to carnation and to wheat.
www.cdl.umn.edu /scab/virulen.html   (724 words)

  
 MYCOTOXINS PRODUCED BY FUSARIUM SPECIES
The most-studied mycotoxins in Fusarium are toxic to both plants and animals.
The interest in toxigenic Fusarium species is increasing world-wide due to the discovery of a growing number of naturally occurring Fusarium mycotoxins that have practical importance as threats to human and animal health." quoted from
Reduction of Fusarium Mycotoxins as concerns in Agricultural Commodities.
mycoherbicide.info /HEALTH/MYCOTOXINS   (1527 words)

  
 Cotton Diseases
Infestations are usually greater in sandier soils and occur in irregular shaped areas in fields.
Infected plants show a stunted growth, foliage discoloration and are often infected by the Fusarium wilt fungus.
Sting injury is often followed by Fusarium wilt fungus infection.
www.gaipm.org /id/cottond.html   (388 words)

  
 Fusarium head blight - Information - Canadian Grain Commission
Fusarium head blight in western Canada, revised January 23, 2006
Cultural characteristics of the causal agents of fusarium head blight in western Canada
Grading tolerances for fusarium damaged grain and DON feeding guidelines
www.grainscanada.gc.ca /information/fhb-e.htm   (112 words)

  
 Fighting Fusarium
When the tissue is inoculated with Fusarium and monitored under a microscope, the distinctive color makes it faster and easier to pinpoint these key cells.
In addition to giving plants new, more powerful genes to boost scab resistance, scientists are scrutinizing about 700 microbes for their potential to serve as biological controls of the fungus.
To stalk the fungus, former Peoria microbiologist Thomas M. Hohn borrowed a gene from a bioluminescent jellyfish, Aequorea victoria, and hooked it to the fungus.
www.ars.usda.gov /is/AR/archive/jun99/fusa0699.htm   (1790 words)

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