DOCSLIB.ORG

"Fusarium Head Blight : a Re-Emerging Disease"

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Article "Fusarium head blight : a re-emerging disease" T.C. Paulitz Phytoprotection, vol. 80, n° 2, 1999, p. 127-133. Pour citer cet article, utiliser l'information suivante : URI: http://id.erudit.org/iderudit/706188ar DOI: 10.7202/706188ar Note : les règles d'écriture des références bibliographiques peuvent varier selon les différents domaines du savoir. Ce document est protégé par la loi sur le droit d'auteur. L'utilisation des services d'Érudit (y compris la reproduction) est assujettie à sa politique d'utilisation que vous pouvez consulter à l'URI https://apropos.erudit.org/fr/usagers/politique-dutilisation/ Érudit est un consortium interuniversitaire sans but lucratif composé de l'Université de Montréal, l'Université Laval et l'Université du Québec à Montréal. Il a pour mission la promotion et la valorisation de la recherche. Érudit offre des services d'édition numérique de documents scientifiques depuis 1998. Pour communiquer avec les responsables d'Érudit : [email protected] Document téléchargé le 13 février 2017 04:37 Colloque / Colloquium - Saint-Jean-sur-Richelieu (Québec), Canada 9 juin / 9 June 1999 Nouveaux problèmes de phytoprotection au Québec / New plant protection problems in Québec Fusarium head blight: a re-emerging disease Timothy C. Paulitz Dept. of Plant Science, McGill University, 21111 Lakeshore, Ste. Anne de Bellevue, Québec, Canada H9X 3V9 PHYTOPROTECTION 80: 127-133 Fusarium head blight (scab) of wheat is to the spikelets, glumes, and rachis of endémie in Eastern Canada and is con- the head. Two to three weeks after sidered to be one of the most important anthesis, the first symptoms appear. disease on this crop, in terms of the Infected spikelets turn brown and sporo- potential losses and harm to consum- dochia form on the glumes. Thèse ers. The disease is caused by Fusarium orange-pink colored sporodochia con- graminearum Schwabe [teleomorph = tain masses of three to seven septate Gibberella zeae (Schwein.) Petch]. The macroconidia of F. graminearum, and same pathogen also attacks other small may cause infection on secondary tillers grains such as oats and barley; and that flower later. However, the disease causes an ear rot of maize. The epide- is considered to be monocyclic, since miology of this disease hâve been re- the secondary inoculum is formed when viewed bySutton (1982) and Parry étal. the susceptibility of the host is low, and (1995). This pathogen survives over there is little plant to plant spread from the winter on wheat and maize débris. this inoculum. At harvest, seeds infect­ The following spring, purple-black per- ed at anthesis are small, whitish col­ ithecia are formed. Thèse are the fruit- ored, and wrinkled. Other seeds can ing bodies of the sexual stage of the also be infected, although they hâve a fungus, Gibberella zeae. Asci and 4- normal appearance. The infected de- celled ascospores are formed and forc- bris is often left on the ground over the ibly ejected around the time of anthesis winter, especially in no-till or reduced of the wheat crop. In Québec, anthesis tillage situations. Perithecia can also of spring wheat occurs in late June to form in the fall, although it is unclear early July and this is when the wheat is what rôle they play in the epidemiology most susceptible to this pathogen. of the disease the following spring. G. Ascospores are considered to be the zeae is homothallic, meaning it can form most important primary inoculum of this the sexual stage by selfing. PCR-RAPD disease in eastern North America. Thèse markers and vegetable compatibility ascopores are deposited on the heads group studies show a large amount of of wheat, germinate, and infect into the genetic diversity among strains (Dusa- developing seed. Compounds in the benyagasani et al. 1999; Bowden and anthers such as choline and betaine are Leslie 1992). Perithecia are readily thought to stimulate the germination of formed in culture and in the field in the spores (Strange et al. 1978). After areas with adéquate summer rainfall, infection, the fungus continues to spread such as eastern Canada. The pathogen Note du rédacteur : le texte ci-dessus est présenté tel que soumis/Editor's note : the above text is presented as submitted. 127 has also been divided into two ecotypes, 10 years, bemg replaced by corn and Group I and II. Group I is found in arid soybeans. In the main wheat growing areas such as Australia and Eastern areas of the mid continent, Fusarium Washington and primarily causes root, head blight was considered to be a seedling, and stalk rots. It does not minor problem, surpassed by foliar form the sexual stage in culture or in diseases such as rust and Septoria. But nature, and thus does not attack the in 1993, an épidémie swept through head. Group I has recently been reclas- thèse areas and has continued for the sified as a new species F. pseudo- last 6 years. This disease has caused graminearum, based on molecular év­ over three billion dollars US in losses idence and subtle différences in the and is considered to be the most costly septatron of the macroconidia (Aoki and plant disease épidémie of the last half O'Donnell 1999). of the 20th century. This subject has been reviewed by Bai and Shaner (1994) Why is this disease so important? and McMullen et al. (1997). The impact Because the fungus produces mycotox- of this disease, along with the low grain ins in the grain which can harm animais priées of the last 2 years, has lead to and humans. The two most important numerousforeclosuresof farms in Min­ are deoxynivalenol (DON, vomitoxin) nesota, North Dakota, Manitoba and and zearalenone. A number of other Saskatchewan. There is also concern trichothecenescan also beformed. This that the disease is moving to dryer areas subject is reviewed in a book by Miller of Alberta and Saskatchewan, where it andTrenholm (1994). DON causes feed- has not been previously a problem ing refusai in animais, especially non- (Gilbert 1998). ruminant swine. Zearalenone is an estrogen-like compound that causes Why has the disease re-emerged as reproductive disorders in swine. At the a problem in thèse areas? One reason présent time, the maximum allowable is the increased summer précipitation limit of DON in grain in Canada is 1 that thèse areas hâve received since ppm for human consumption, 2 ppm 1993. Some areas hâve received dou­ for animal consumption. Levels in the ble their normal summer rainfall. Like grain are heavily monitored by eleva- most diseases, free water or moisture tors, millers, and government agencies is needed for infection. Secondly, the both in Canada and the United States. prevalence of no-till and low-till agri­ culture over the last 15-20 years has Why is this called a re-emerging dis­ increased the inoculum load of the fun­ ease? It is already endémie on wheat gus. The adoption of this technology and corn in eastern Canada, because of has been widespread, and has several the high probability of rain during the intrinsic benefits, such as réduction in susceptible period of anthesis. For soil érosion and reduced energy and example, in 1996, 85% of the winter labor costs. However, since much of wheat crop of southern Ontario was the residue is left on the surface, the destroyed by the disease, resulting in inoculum can overwinter. Many stud- losses of over $100 million (Schaafsma ies hâve shown a réduction in survival et al. 1998) During anthesis, rain show- of the pathogen if the residue is buried ers came in off of Lake Ontario and set (Khonga and Sutton 1988; Teich and the stage for the épidémie. Obviously, Hamilton 1985). However a return to there was adéquate inoculum présent, the moldboard plow is unlikely. There even though the growers practiced strip may hâve also been a loss of genetic rotation with soybeans and corn. A résistance in modem cultivars, since major épidémie on maize also occurred they were not selected against this dis­ in 1990 (Charmley et al. 1994). Howev- ease. At the présent time, cultivars are er, Québec and eastern Ontario are moderately to highly susceptible. Fi- minor producers of wheat, compared nally, there has been some spéculation to the upper Midwest of the US and that the disease has increased because prairie provinces. Most of the wheat in of the movement of corn production Québec is grown for animal feed and westward into new areas previously production has declined over the last cropped with wheat. This pathogen 128 PAULITZ : FUSARIUM HEAD BLIGHT attacks both corn and wheat, so this likely to be widely practiced because of may lead to a buildup of inoculum. the energy costs, dégradation of soil structure and érosion. In addition, if inoculum can travel a iDng distance, as MANAGEMENT suggested by Francl et al. (1999) who trapped spores at sites remote from STRATEGIES fields, then tillage may not hâve a sig­ nifiant effect. Crop rotation is another How can this devastating disease be cultural practice that could reduce dis­ managed or controlled? There are a ease. The recommendation is not to number of différent stratégies, howev- plant wheat where the previous crop er as consistent with the principles of wascorn or wheat (Martin and Johnston integrated pest management (IPM), 1982), since wheat following corn has none alone will be sufficient to provide higher levels of disease (Teich and a consistent and stable réduction of this Nelson 1984), and soybean-corn rota­ disease. tion gave less disease than corn-corn (Lipps and Deep 1991). Résistant cultîvars In the long term, this is the most eco- Chemical control nomically and environmentallyfeasible Chemical control is another option, but method of managing this disease.
Load more

Recommended publications
  • Fusarium Graminearum ~4(Final)-1
    MARCH 2016 Fusarium graminearum (Fusarium Head Blight ) T. Kelly Turkington1, Andrew Petran2, Tania Yonow3,4, and Darren J. Kriticos3,4 1 Lacombe Research Centre and Beaverlodge Research Farm, Agriculture and Agri‐Food Canada, Lacombe, Alberta, Canada 2 Department of Horticultural Sciences, University of Minnesota, St. Paul, MN, USA 3 HarvestChoice, InSTePP, University of Minnesota, St. Paul, MN, USA 4 CSIRO, Biosecurity and Agriculture Flagships, Canberra, Australia Background Information Introduction Common Names: Fusarium graminearum Schwabe [teleomorph Gibberella Fusarium head blight; FHB, head blight of maize zeae (Schweinitz) Petch], is of world‐wide importance on small grain cereals and corn, occurring under a wide Scientiic Name: range of soil and environmental conditions (CAB Fusarium graminearum (anamorph = asexual stage), International 2003; Gilchrist and Dubin 2002; Parry et al. Gibberella zeae (teleomorph = sexual stage) 1995; Stack 2003). Since the early 1990s, fusarium head blight (FHB) caused primarily by F. graminearum has Synonyms: become one of the most signiicant cereal diseases faced Botryosphaeria saubinetii, Dichomera saubinetii, by producers in central Canada and the prairie region, Dothidea zeae, Fusarium roseum, Gibbera saubinetii, and the midwestern United States (e.g., Gilbert and Gibberella roseum, Gibberella saubinetii, Sphaeria Tekauz 2000; McMullen et al. 1997b; Tekauz et al. 2000). saubinetii, Sphaeria zeae Fusarium graminearum was identiied by CIMMYT to be a Taxonomy: major limiting factor to wheat production in many parts Kingdom: Animalia; Phylum: Ascomycota; of the world (Stack 1999). The fungus can produce Class: Sordariomycetes; Order: Hypocreales; several mycotoxins, including deoxynivalenol (DON) and Family: Nectriaceae zearalenone. In non‐ruminants, feed contaminated with DON can reduce growth rates, while zearalenone can Crop Hosts: cause reproductive problems (Charmley et al.
    [Show full text]
  • Fusarium Head Blight of Wheat: Evaluation of the Efficacies Of
    Fusarium Head Blight of Wheat: Evaluation of the efficacies of fungicides towards Fusarium graminearum 3-ADON and 15-ADON isolates in spring wheat and assess the genetic differences between 3-ADON isolates from Canada and China By Chami Chathurangi Amarasinghe A Thesis Submitted to the Faculty of Graduate Studies In partial Fulfillment of the Requirements for the degree of MASTER OF SCIENCE Department of Plant Science University of Manitoba Winnipeg, Manitoba, Canada ©Copyright by Chami Chathurangi Amarasinghe 2010 THE UNIVERSITY OF MANITOBA FACULTY OF GRADUATE STUDIES ***** Fusarium Head Blight of Wheat: Evaluation of the efficacies of fungicides towards Fusarium graminearum 3-ADON and 15-ADON isolates in spring wheat and assess the genetic differences between 3-ADON isolates from Canada and China BY Chami Chathurangi Amarasinghe A thesis submitted to the Faculty of Graduate Studies of The University of Manitoba in partial fulfillment of the requirements for the degree OF MASTER OF SCIENCE Chami Amarasinghe © 2010 Permission has been granted to the Library of the University of Manitoba to lend or sell copies of this thesis, to the National Library of Canada to microfilm this thesis and to lend or sell copies of the film, and to University Microfilm Inc. to publish an abstract of this thesis. The reproduction or copy of this thesis has been made available by authority of copyright owner solely for the purpose of private study and research, and may only be reproduced and copied as permitted by copyright laws or with express written authorization from the copyright owner. ACKNOWLEGMENTS First of all my sincere gratitude goes to Dr.
    [Show full text]
  • Impacts of Changing Climate and Agronomic Factors on Fusarium Ear Blight 1 2 3 2 of Wheat in the UK 4 5 6 3 7 8 4 Jonathan S
    *ManuscriptView metadata, citation and similar papers at core.ac.uk brought to you by CORE Click here to view linked References provided by University of Hertfordshire Research Archive 1 Impacts of changing climate and agronomic factors on fusarium ear blight 1 2 3 2 of wheat in the UK 4 5 6 3 7 8 4 Jonathan S. WESTa*, Sarah HOLDGATEa†, James A. TOWNSENDa, Julia B HALDERad, 9 10 b c a 5 Simon G. EDWARDS , Philip JENNINGS and Bruce D. L. FITT 11 12 13 6 14 15 7 a Rothamsted Research, Harpenden, AL5 2JQ, UK; b Harper Adams University College, 16 17 c 18 8 Newport, TF10 8NB, UK; The Food and Environment Research Agency, Sand Hutton, 19 20 9 York YO41 1LZ, UK; d Imperial College, London; † current address: RAGT Seeds Ltd., 21 22 23 10 Grange Road, Ickleton, Saffron Walden, CB10 1TA, UK 24 25 11 26 27 *E-mail: [email protected] 28 12 29 30 13 31 32 14 Climate change will have direct impacts on fusarium ear blight (FEB) in wheat crops, since 33 34 35 15 weather factors greatly affect epidemics, the relative proportions of species of ear blight 36 37 16 pathogens responsible and the production of deoxynivalenol (DON) toxin by two Fusarium 38 39 40 17 species, F. graminearum and F. culmorum. Many established weather-based prediction 41 42 18 models do not accurately predict FEB severity in the UK. One weather-based model 43 44 45 19 developed with UK data suggests a slight increase in FEB severity under climate change.
    [Show full text]
  • Host Plant Resistance Genes for Fusarium Head Blight: Sources, Mechanisms, and Utility in Conventional Breeding Systems
    Host Plant Resistance Genes for Fusarium Head Blight: Sources, Mechanisms, and Utility in Conventional Breeding Systems J. C. Rudd,* R. D. Horsley, A. L. McKendry, and E. M. Elias ABSTRACT source of complete resistance is known, and current Fusarium head blight (FHB), caused by Fusarium graminearum sources provide only partial resistance. Schwabe [teleomorph Gibberella zeae (Schwein.)], also known as The United States Department of Agriculture (USDA) scab, is a destructive disease of wheat (Triticum aestivum L; T. tur- currently ranks FHB as the worst plant disease of wheat gidum L. var durum) and barley (Hordeum vulgare L.). Host resis- and barley since the stem rust (caused by Puccinia gram- tance has long been considered the most practical and effective means inis Pers.:Pers.) epidemics of the 1950s (Wood et al., of control, but breeding has been hindered by a lack of effective 1999). FHB epidemics have been documented in 26 resistance genes and by the complexity of the resistance in identified states and five Canadian provinces. Yield losses in wheat sources. This paper will provide an overview of progress in developing host plant resistance for FHB, primarily in the USA, by review of since 1990 have exceeded 13 Tg (500 million bushels) the sources of resistance in wheat and barley, and their utilization with economic losses estimated at $2.5 billion (Windels, in breeding programs. Although there are no reported sources of 2000). Wheat yields in 1993 were reduced by about 50% immunity, considerable genetic variability exists for resistance in both in northeastern North Dakota and 40% in northwestern wheat and barley.
    [Show full text]
  • Wheat Ear Sprays for Disease and Mycotoxin Control
    Topic Sheet No. 58 Summer 2002 Wheat ear sprays for disease and mycotoxin control Fusarium ear blight losses due to diseases caused by Five main species of fungi are these fungi and the mycotoxins responsible for ear blight in the they produce.While F. avenaceum UK.While all can reduce yield and F. poae are rarely important, and/or quality, only the Fusarium they can produce mycotoxins that species produce mycotoxins are even more potent than NIV (Table 1). or DON. The prevalence of ear diseases HGCA is funding surveys of varies considerably with location Fusarium mycotoxins in UK grain and year. Incidence and severity and to date, risk of contamination have increased in recent years appears to be low. (Figure 1). Wet weather at EU legislation, which already sets flowering is critical for disease limits for some mycotoxins development. produced by storage fungi, is likely Action: Fusarium graminearum and to be extended to include F. culmorum produce several mycotoxins produced by Fusarium Avoid growing highly mycotoxins including species. Grain containing toxin susceptible varieties in areas above these levels could be with a history of ear disease. deoxynivalenol (DON) and nivalenol (NIV), which are difficult or impossible to sell. Prepare to spray immediately harmful if consumed by humans if the weather is wet at and animals. Fungicide testing and flowering. choice Use fungicide mixtures to Mycotoxin risk In three years of HGCA-funded help control toxin-producing experiments, susceptible winter and non-toxin producing fungi. Mycotoxin formation in grain depends upon the predominant wheat varieties were grown at Use mixtures of fungicides species, temperature and other three sites.
    [Show full text]
  • Near-Infrared Spectroscopic Method for Identification of Fusarium Head Blight Damage and Prediction of Deoxynivalenol in Single Wheat Kernels
    e-Xtra* Near-Infrared Spectroscopic Method for Identification of Fusarium Head Blight Damage and Prediction of Deoxynivalenol in Single Wheat Kernels K. H. S. Peiris,1 M. O. Pumphrey,2 Y. Dong,3 E. B. Maghirang,4 W. Berzonsky,5 and F. E. Dowell6,7 ABSTRACT Cereal Chem. 87(6):511–517 Fusarium Head Blight (FHB), or scab, can result in significant crop tions with high or low DON content. The kernels identified as FDK by yield losses and contaminated grain in wheat (Triticum aestivum L.). the SKNIR system had better correlation with other FHB assessment Growing less susceptible cultivars is one of the most effective methods indices such as FHB severity, FHB incidence and kernels/g than visual for managing FHB and for reducing deoxynivalenol (DON) levels in FDK%. This technique can be successfully employed to nondestructively grain, but breeding programs lack a rapid and objective method for identi- sort kernels with Fusarium damage and to estimate DON levels of those fying the fungi and toxins. It is important to estimate proportions of kernels. Single kernels could be predicted as having low (<60 ppm) or sound kernels and Fusarium-damaged kernels (FDK) in grain and to high (>60 ppm) DON with ≈96% accuracy. Single kernel DON levels of estimate DON levels of FDK to objectively assess the resistance of a the high DON kernels could be estimated with R2 = 0.87 and standard cultivar. An automated single kernel near-infrared (SKNIR) spectroscopic error of prediction (SEP) of 60.8 ppm. Because the method is nondestruc- method for identification of FDK and for estimating DON levels was tive, seeds may be saved for generation advancement.
    [Show full text]
  • Heading for Disaster: Fusarium Graminearum on Cereal Crops
    MOLECULAR PLANT PATHOLOGY (2004) 5(6), 515–525 DOI: 10.1111/J.1364-3703.2004.00252.X Blackwell Publishing, Ltd. Pathogen profile Heading for disaster: Fusarium graminearum on cereal crops RUBELLA S. GOSWAMI AND H. CORBY KISTLER* USDA ARS Cereal Disease Laboratory, and Department of Plant Pathology, University of Minnesota, St Paul, MN 55108, USA ation that can be similar to that caused by other kernel blighting SUMMARY organisms. During prolonged wet periods, pink to salmon-orange The rapid global re-emergence of Fusarium head blight disease of spore masses of the fungus are often seen on infected spikelets, wheat and barley in the last decade along with contamination of glumes and kernels in both wheat and barley. For maize ear rot, grains with mycotoxins attributable to the disease have spurred infection occurs by way of colonizing silk and thus symptoms first basic research on the fungal causal agent. As a result, Fusarium appear at the ear apex. White mycelium, turning pink to red with graminearum quickly has become one of the most intensively time, colonizes kernels and may progress basipetally, covering studied fungal plant pathogens. This review briefly summarizes the entire ear. current knowledge on the pathogenicity, population genetics, Useful websites: www.broad.mit.edu/annotation/fungi/ evolution and genomics of Fusarium graminearum. fusarium/mips.gsf.de/genre/proj/fusarium/ Taxonomy: Based on the sexual state Gibberella zeae www.cdl.umn.edu/scab/gz-consort.html (Schwein.) Petch: Superkingdom Eukaryota; Kingdom Fungi; www.scabusa.org/ Phylum Ascomycota; Subphylum Pezizomycotina; Class Sordario- mycetidae; Subclass Hypocreomycetidae; Order Hypocreales; Family Nectriaceae; Genus Gibberella.
    [Show full text]
  • Survival of Fusarium Graminearum, the Causal Agent of Fusarium Head Blight
    Survival of Fusarium graminearum, the causal agent of Fusarium head blight. A review Johann Leplat, Hanna Friberg, Muhammad Abid, Christian Steinberg To cite this version: Johann Leplat, Hanna Friberg, Muhammad Abid, Christian Steinberg. Survival of Fusarium gramin- earum, the causal agent of Fusarium head blight. A review. Agronomy for Sustainable Development, Springer Verlag/EDP Sciences/INRA, 2012, 33 (1), pp.97-111. 10.1007/s13593-012-0098-5. hal- 01201382 HAL Id: hal-01201382 https://hal.archives-ouvertes.fr/hal-01201382 Submitted on 17 Sep 2015 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Agron. Sustain. Dev. (2013) 33:97–111 DOI 10.1007/s13593-012-0098-5 REVIEW ARTICLE Survival of Fusarium graminearum, the causal agent of Fusarium head blight. A review Johann Leplat & Hanna Friberg & Muhammad Abid & Christian Steinberg Accepted: 10 May 2012 /Published online: 14 June 2012 # INRA and Springer-Verlag, France 2012 Abstract Wheat is one of the most cultivated crops world- dead organic matter, particularly on crop residues. F. gra- wide. In 2010, 20 % of wheat and durum wheat were minearum adapts to a wide range of environmental varia- cultivated in Europe, 17 % in China and 9 % in Russia tions, and produces extracellular enzymes allowing feeding and in North America.
    [Show full text]
  • Fusarium Head Blight, Mycotoxins and Strategies for Their Reduction
    agronomy Review Fusarium Head Blight, Mycotoxins and Strategies for Their Reduction El˙zbietaMielniczuk and Barbara Skwaryło-Bednarz * Department of Plant Protection, Faculty of Horticulture and Landscape Architecture, University of Life Sciences, 20-069 Lublin, Poland; [email protected] * Correspondence: [email protected]; Tel.: +48 81-524-81-25 Received: 1 March 2020; Accepted: 31 March 2020; Published: 2 April 2020 Abstract: Mycotoxins are secondary metabolites of microscopic fungi, which commonly contaminate cereal grains. Contamination of small-grain cereals and maize with toxic metabolites of fungi, both pathogenic and saprotrophic, is one of the particularly important problems in global agriculture. Fusarium species are among the dangerous cereal pathogens with a high toxicity potential. Secondary metabolites of these fungi, such as deoxynivalenol, zearalenone and fumonisin B1 are among five most important mycotoxins on a European and world scale. The use of various methods to limit the development of Fusarium cereal head diseases and grain contamination with mycotoxins, before and after harvest, is an important element of sustainable agriculture and production of safe food. The applied strategies utilize chemical and non-chemical methods, including agronomic, physical and biological treatments. Biological methods now occupy a special place in plant protection as an element of biocontrol of fungal pathogens by inhibiting their development and reducing mycotoxins in grain. According to the literature, Good Agricultural Practices are the best line of defense for controlling Fusarium toxin contamination of cereal and maize grains. However, fluctuations in weather conditions can significantly reduce the effectiveness of plants protection methods against infection with Fusarium spp. and grain accumulation of mycotoxins.
    [Show full text]
  • Fusarium Head Blight : a Re-Emerging Disease T.C
    Document generated on 09/26/2021 6:27 p.m. Phytoprotection Fusarium head blight : a re-emerging disease T.C. Paulitz Volume 80, Number 2, 1999 URI: https://id.erudit.org/iderudit/706188ar DOI: https://doi.org/10.7202/706188ar See table of contents Publisher(s) Société de protection des plantes du Québec (SPPQ)l ISSN 0031-9511 (print) 1710-1603 (digital) Explore this journal Cite this article Paulitz, T. (1999). Fusarium head blight : a re-emerging disease. Phytoprotection, 80(2), 127–133. https://doi.org/10.7202/706188ar La société de protection des plantes du Québec, 1999 This document is protected by copyright law. Use of the services of Érudit (including reproduction) is subject to its terms and conditions, which can be viewed online. https://apropos.erudit.org/en/users/policy-on-use/ This article is disseminated and preserved by Érudit. Érudit is a non-profit inter-university consortium of the Université de Montréal, Université Laval, and the Université du Québec à Montréal. Its mission is to promote and disseminate research. https://www.erudit.org/en/ Colloque / Colloquium - Saint-Jean-sur-Richelieu (Québec), Canada 9 juin / 9 June 1999 Nouveaux problèmes de phytoprotection au Québec / New plant protection problems in Québec Fusarium head blight: a re-emerging disease Timothy C. Paulitz Dept. of Plant Science, McGill University, 21111 Lakeshore, Ste. Anne de Bellevue, Québec, Canada H9X 3V9 PHYTOPROTECTION 80: 127-133 Fusarium head blight (scab) of wheat is to the spikelets, glumes, and rachis of endémie in Eastern Canada and is con- the head. Two to three weeks after sidered to be one of the most important anthesis, the first symptoms appear.
    [Show full text]
  • Fusarium Head Blight: Winter Wheat Cultivar Responses and Characterization of Pathogen Isolates
    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Theses, Dissertations, and Student Research in Agronomy and Horticulture Agronomy and Horticulture Department 11-23-2010 FUSARIUM HEAD BLIGHT: WINTER WHEAT CULTIVAR RESPONSES AND CHARACTERIZATION OF PATHOGEN ISOLATES John Fredy Hernandez Nopsa University of Nebraska-Lincoln Follow this and additional works at: https://digitalcommons.unl.edu/agronhortdiss Part of the Agronomy and Crop Sciences Commons, Plant Breeding and Genetics Commons, and the Plant Pathology Commons Hernandez Nopsa, John Fredy, "FUSARIUM HEAD BLIGHT: WINTER WHEAT CULTIVAR RESPONSES AND CHARACTERIZATION OF PATHOGEN ISOLATES" (2010). Theses, Dissertations, and Student Research in Agronomy and Horticulture. 19. https://digitalcommons.unl.edu/agronhortdiss/19 This Article is brought to you for free and open access by the Agronomy and Horticulture Department at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Theses, Dissertations, and Student Research in Agronomy and Horticulture by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. FUSARIUM HEAD BLIGHT: WINTER WHEAT CULTIVAR RESPONSES AND CHARACTERIZATION OF PATHOGEN ISOLATES by John Fredy Hernandez Nopsa A DISSERTATION Presented to the Faculty of The Graduate College at the University of Nebraska In Partial Fulfillment of Requirements For the Degree of Doctor of Philosophy Major: Agronomy, (Plant Pathology) Under the Supervision of Professor Stephen N. Wegulo Lincoln, Nebraska November, 2010 FUSARIUM HEAD BLIGHT: WINTER WHEAT CULTIVAR RESPONSES AND CHARACTERIZATION OF PATHOGEN ISOLATES John F. Hernandez Nopsa, Ph.D. University of Nebraska, 2010 Advisor: Stephen N. Wegulo. Fusarium head blight (FHB) is a destructive disease of wheat (Triticum aestivum L). FHB reduces yield and grain quality and causes accumulation of the mycotoxin deoxynivalenol (DON) in grain.
    [Show full text]
  • Fusarium Infection and Its Effects on Germination and Deoxynivalenol Content of Oats and Screening for Resistance by VIS-NIR Spectroscopic Methods
    Fusarium infection and its effects on germination and deoxynivalenol content of oats and screening for resistance by VIS-NIR spectroscopic methods Verknader av Fusarium-infeksjon på innhald av deoxynivalenol (DON) og spireevne i havre, og screening for resistens ved hjelp av VIS-NIR- spektroskopiske metodar Philosophiae Doctor (PhD) Thesis Selamawit Tekle Gobena Department of Plant Sciences Faculty of Veterinary Medicine and Biosciences Norwegian University of Life Sciences Ås, 2014 Thesis number 2014:78 ISSN 1894-6402 ISBN 978-82-575-1238-5 Supervisors Professor Åsmund Bjørnstad asmund.bjø[email protected] Department of Plant Sciences Norwegian University of Life Sciences P. O. Box 5003, 1432 Ås, Norway Doctor Helge Skinnes [email protected] Department of Plant Sciences Norwegian University of Life Sciences P. O. Box 5003, 1432 Ås, Norway Doctor Vegard H. Segtnan [email protected] Nofima AS Osloveien 1, 1430 Ås, Norway Evaluation Committee Doctor Catherine Howarth [email protected] Institute of Biological, Environmental and Rural Sciences Aberystwyth University Penglais, Aberystwyth, Ceredigion, SY23 3DA, Wales Doctor Ellen F. Mosleth [email protected] Nofima AS Osloveien 1, 1430 Ås, Norway Professor Hilde‐Gunn Opsahl Hoen‐Sorteberg [email protected] Department of Plant Sciences Norwegian University of Life Sciences P. O. Box 5003, 1432 Ås, Norway ii Table of contents Acknowledgements ...............................................................................................................................v
    [Show full text]