Download or read book Fusarium Head Blight in Canadian Winter Wheat written by Harwinder Sidhu and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fusarium Head Blight (FHB) is a devastating disease of Wheat (Triticum aestivum L.) caused primarily by Fusarium graminearum Schwabe in Canada. Wheat FHB results in yield and produce quality losses. The clearest symptoms of FHB are premature bleaching of spikelets in the field, and fusarium damaged kernels in the harvested seed. Insufficient and costly disease control strategies make breeding for FHB resistance in wheat an ideal choice. There is a lack of FHB resistance sources in the Canadian wheat germplasm and Genome Wide Association Studies (GWAS) can be utilized to identify such sources. Furthermore, as no Quantitative Trait Loci (QTL) provides absolute resistance to FHB, identification of novel sources of resistance is desired. Genomic Selection (GS) has great potential in crop improvement, specifically for quantitative traits. A diversity panel that represents the genetic diversity of the Canadian, i.e., high latitude North American winter wheat was assembled for this thesis and the genetic diversity, population structure, and linkage disequilibrium of the germplasm was studied. To identify QTL associated with FHB, a GWAS study was conducted using the phenotypic data collected at three locations over two years. For understanding the role of number of genotypic markers, population structure, and choice of model in trait prediction modelling, a GS study was conducted. The Canadian Winter Wheat Diversity Panel is a diverse collection of winter wheat capturing diversity both in time and geography from Canada. The panel comprises of seven subpopulations with different LD, allele frequencies, and genetic diversity parameters. Multiple QTL associated with FHB related traits were identified on 13 chromosomes which may harbor genes involved in plant defense and stress response mechanisms. For FHB resistance improvement, the GS study demonstrated that the modelling parameters can be determined based upon the genotypic information available. Deoxynivalenol contamination was one of the traits with the highest prediction accuracy. GS can account for minor effect QTL, which is beneficial when breeding for quantitative traits. FHB resistant varieties are needed for an effective and economical disease control strategy in wheat and GS can complement current breeding efforts to develop FHB resistant wheat varieties.
Download or read book Fusarium Head Blight in Canada Rev written by and published by . This book was released on 1998 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fusarium head blight is a fungal disease that may infect a number of crops in Canada - wheat, barley, oats, rye, corn, canary seed and forage grasses. In Manitoba, it infects mostly wheat and barley. This document looks at fusarium head blight in Canada.
Download or read book The Global Fusarium Initiative for International Collaboration written by Tomohiro Ban and published by CIMMYT. This book was released on 2006 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mycotoxins written by John F. Leslie and published by CABI. This book was released on 2008 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an outcome of the MycoGlobe conference in Accra. Most of the chapters are based on invited oral presentations made at the conference. The chapters in this book touch on issues including health, trade, ecology, epidemiology, occurrence, detection, management, awareness and policy. This book serves as a source of information on the occurrence and impact of mycotoxins on everything from trade and health to agricultural production in addition to suggesting opportunities for their management in Africa and elsewhere by researchers, policy makers and development investors.
Download or read book Disease Resistance in Wheat written by Indu Sharma and published by CABI. This book was released on 2012 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Disease resistance is one of the major factors that can be improved to sustain yield potential in cultivated crops. This book looks at disease resistance in wheat, concentrating on all the economically important diseases -- their economic impact and geographical spread, breeding for resistance, pathogen variability, resistance mechanisms and recent advances made on resistance genes. Newer strategies for identifying resistance genes and identify resistance mechanisms are discussed, including cloning, gene transfer and the use of genetically modified plants.
Download or read book Fusarium blight scab of Wheat and Other Cereals written by Dimitŭr Atanasov and published by . This book was released on 1920 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fusarium Head Blight of Wheat and Barley written by Kurt J. Leonard and published by American Phytopathological Society. This book was released on 2003 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a comprehensive record of current knowledge on the nature of Fusarium head blight, the damage it causes, and current research on how to control it. The book begins with a historical account of Fusarium head blight epidemics that gives context to recent attempts to control epidemics in wheat and barley. A review of pathogen taxonomy and population biology helps scientists to see relationships among head blight pathogens and other Fusarium species. The information on epidemiology included in this review also provides an understanding of the weather conditions and cultural practices that promote explosive epidemics. New information on infection processes will lead the reader to a better understanding of how to breed for resistance in wheat and barley.
Download or read book FUSARIUM HEAD BLIGHT IN CANADA written by Canadian Grain Commission and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wheat Scab in Minnesota written by Jean MacInnes and published by . This book was released on 1923 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FUSARIUM HEAD BLIGHT IN CANADA written by and published by . This book was released on 1996 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fusarium Head Blight in Latin America written by Teresa M. Alconada Magliano and published by Springer Science & Business Media. This book was released on 2013-09-07 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fusarium head blight (FHB) on small-grain cereals is one of the most devastating diseases. Several species can cause head blight, though Fusarium graminearum is the predominant pathogen in most regions. F. graminearum is one of the most intensively studied fungal plant pathogens. This book presents the current state of knowledge regarding mycological aspects that make wheat-Fusarium interaction, such as hyphal growth, morphogenesis in germinating spores, visualization of enzymatic hydrolysis, production of mycotoxins, inhibition of the hyphal growth by antagonist microorganisms, use of natural substances or by modification of the host resistance, as well as genetic analysis and expression of genes that regulate the infection. Fungal ecology and epidemiology will also be discussed. Just as the analysis of environmental requirements for the establishment of the disease, the use of forecasts of disease risk with meteorological base and integrated management and control. This book includes the study of disease in Latin America, therefore will be of interest to researchers who are working on the issue, as for those who are interested in knowing about the disease.
Download or read book Species Diversity of Fusarium Head Blight and Deoxynivalenol DON Levels in Western Canadian Wheat Fields and Generating Leptosphaeria Maculans Isolates Carrying Single Avirulent Avr Genes written by Sachithrani Kannangara and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat and canola are two major economically important food crops grown in western Canada, accounting for billions of dollars in revenue. Fusarium head blight (FHB) in wheat and blackleg in canola are the most destructive diseases that cause economic losses annually. Both diseases are caused by fungal pathogens, where FHB is primarily caused by Fusarium graminearum, while Leptosphaeria maculans causes the blackleg disease. This project's first objective is to evaluate the Fusarium species diversity and deoxynivalenol (DON) levels in western Canadian wheat fields in 2019 and 2020. The analysis of deoxynivalenol (DON) revealed that spring wheat grain contained higher DON levels than winter wheat grain samples. Additionally, for spring wheat, a significantly lower DON content was found in the grain than in the chaff collected from the same wheat heads for both years. The species diversity analysis showed that F. graminearum was the most frequent Fusarium species found in the infected samples except the samples from Alberta, while the highest percentage of F. graminearum was found in the spring wheat samples from Manitoba. The analysis of chemotype diversity of infected samples showed that 3ADON is the dominant chemotype in FHB disease. For the blackleg disease, a growing concern among blackleg researchers is that resistance (R) genes are identified, the same gene as two different genes by two independent laboratories, as not all research laboratories use a standard set of well-characterized isolates. To standardize the R gene identification and novel R gene discovery, the second objective of this thesis is to develop a procedure to generate L. maculans isolates that only carry a single avirulent (Avr) gene. Mating between two L. maculans isolates showed less efficiency in achieving the above objective. Thus, gene editing with the clustered regularly interspaced short palindromic repeat (CRISPR)/Cas9 was utilized. Seven transformed isolates displayed reduced virulence on the canola cultivar Westar, even though they were not mutated at the target gene.
Download or read book Fusarium written by Łukasz Stępień and published by MDPI. This book was released on 2020-11-18 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has been over 200 years since Fusarium pathogens were described for the first time, and they are still in the spotlight of researchers worldwide, mostly due to the mycotoxigenic abilities and the subsequent introduction of harmful metabolites into the food chain. The accelerating climatic changes are resulting in pathogen population and chemotype shifts all around the world, thus increasing the demand for continuous studies of factors that affect the virulence, disease severity and mycotoxin accumulation in plant tissues. This Special Issue summarizes recent advances in the field of Fusarium genetics, biology and toxicology.
Download or read book Biological Control Programmes in Canada 2001 2012 written by Peter G Mason and published by CABI. This book was released on 2013-10-21 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Canada is a world leader in biological control research. Reporting the status of biocontrol agents released in Canada over the last decade, this book presents case studies by target pest that evaluate the impact of biocontrol and recommend future priorities. In addition to a new chapter on future targets and an appendix listing established agents, this edition contains information of interest to a global audience, and chapters that address effects of invasive species and climate change.
Download or read book Proceedings of the 11th International Wheat Genetics Symposium 24 29 August 2008 Brisbane Qld Australia written by Rudi Appels and published by Sydney University Press. This book was released on 2008 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers herein are volume 3 of the proceedings of the 11th International Wheat Genetics Symposium, held in Brisbane, Australia, in 2008. The series presents the science of the genetic sciences applied to bread and durum wheats and other species.
Download or read book Management of Fusarium Species and Their Mycotoxins in Cereal Food and Feed written by Thomas Miedaner and published by Frontiers Media SA. This book was released on 2017-11-10 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Health and safety of food and feed are the most important criteria for their quality. The quality of feed is in turn important for animal health, the environment and for the safety of food from animal origin. Fungi belonging to the Fusarium genus are widespread in crops causing plant diseases and producing toxic metabolites. Fusarium species can colonize plants during their growth on the field and cause serious damage in terms of yield and quality of harvested grains. One of the most important fungal diseases of wheat and other cereals in the world is Fusariumhead blight caused by the fungal pathogens Fusarium graminearum and Fusarium culmorumand others. In addition, these fungi produce mycotoxins, contaminating food and feed. The most important Fusarium mycotoxins include trichothecenes, zearalenone and fumonisins, primarily because of their prevalence, but also because of the toxic effect to humans and animals. However, these fungi produce also other mycotoxins such as moniliformin, beauvericin, enniantin or fusarins. Food and feed can be contaminated with mycotoxins at various stages in the production chain resulting in serious problems with health, safety and economic losses. It is estimated that 25% of the crop in the world each year are contaminated with these metabolites, the problem affects both industrialized countries and developing countries. The aim of this Research Topic of Frontiers in Microbiology is to publish state of the art research about occurrence and genomics of Fusarium species and their mycotoxins in the whole food and feed chain starting from the crops as well as implications for health and economic aspects. This research topic highlights the current knowledge on the plant diseases caused by Fusarium fungi as well as all aspects of Fusarium mycotoxin contamination of crops, food and feed, taking into account decontamination methods.
Download or read book Management of Fungal Plant Pathogens written by Arun Arya and published by CABI. This book was released on 2010 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of our current knowledge of some plant-pathogen interactions in economically important crops, emphasizing the importance of pathogenic fungi on fruits, cereals, postharvest crops and the establishment of plant diseases and drawing together fundamental new information on their management strategies based on conventional and eco-friendly methods, with an emphasis on the use of microorganisms and various biotechnological aspects of agriculture, which could lead to sustainability in modern agriculture. The book examines the role of microbes in growth promotion, as bioprotectors and bioremediators, and presents practical strategies for using microbes in sustainable agriculture. In addition, the use of botanicals vis-a-vis chemical pesticides is also reviewed. Contributions on new research fields such as mycorrhizas and endophytes are included. The book also examines in different chapters host-pathogen interactions in the light of the new tools and techniques of molecular biology and genetics.
