Advances in Genetics, Genomics and Control of Rice Blast Disease

Advances in Genetics, Genomics and Control of Rice Blast Disease PDF Author: Xiaofan Wang
Publisher: Springer Science & Business Media
ISBN: 1402095007
Category : Technology & Engineering
Languages : en
Pages : 433

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Book Description
Rice blast, caused by the fungal pathogen Magnaporthe grisea, is one of the most destructive rice diseases worldwide and destroys enough rice to feed more than 60 million people annually. Due to high variability of the fungal population in the field, frequent loss of resistance of newly-released rice cultivars is a major restraint in sustainable rice production. In the last few years, significant progress has been made in understanding the defense mechanism of rice and pathogenicity of the fungus. The rice blast system has become a model pathosystem for understanding the molecular basis of plant-fungal interactions due to the availability of both genomes of rice and M. grisea and a large collection of genetic resources. This book provides a complete review of the recent progress and achievements on genetic, genomic and disease control of the disease. Most of the chapters were presented at the 4th International Rice Blast Conference held on October 9-14, 2007 in Changsha, China. This book is a valuable reference not only for plant pathologists and breeders working on rice blast but also for those working on other pathysystems in crop plants.

Advances in Genetics, Genomics and Control of Rice Blast Disease

Advances in Genetics, Genomics and Control of Rice Blast Disease PDF Author: Xiaofan Wang
Publisher: Springer Science & Business Media
ISBN: 1402095007
Category : Technology & Engineering
Languages : en
Pages : 433

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Book Description
Rice blast, caused by the fungal pathogen Magnaporthe grisea, is one of the most destructive rice diseases worldwide and destroys enough rice to feed more than 60 million people annually. Due to high variability of the fungal population in the field, frequent loss of resistance of newly-released rice cultivars is a major restraint in sustainable rice production. In the last few years, significant progress has been made in understanding the defense mechanism of rice and pathogenicity of the fungus. The rice blast system has become a model pathosystem for understanding the molecular basis of plant-fungal interactions due to the availability of both genomes of rice and M. grisea and a large collection of genetic resources. This book provides a complete review of the recent progress and achievements on genetic, genomic and disease control of the disease. Most of the chapters were presented at the 4th International Rice Blast Conference held on October 9-14, 2007 in Changsha, China. This book is a valuable reference not only for plant pathologists and breeders working on rice blast but also for those working on other pathysystems in crop plants.

Rice

Rice PDF Author: Wengui Yan
Publisher: BoD – Books on Demand
ISBN: 9535112406
Category : Medical
Languages : en
Pages : 320

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Book Description
Rice is a staple food for half of the worlds population mostly in Asia. Productivity of rice has largely been improved since the Green Revolution in 1960s. Further improvement of rice yield is necessary to keep pace with population growth, which is a challenging task for breeders. This book, Rice - Germplasm, Genetics and Improvement, as its name implies, comprehensively reviews current knowledge in germplasm exploration, genetic basis of complex traits, and molecular breeding strategies in rice. In the germplasm part, we highlight the application of wild rice in rice breeding. In the genetics part, most of the complex traits related with yield, disease, quality have been covered. In the improvement part, Chinese experiences in hybrid rice breeding have been summarized together with many molecular breeding practices scattering in different chapters.

Wheat Blast

Wheat Blast PDF Author: Sudheer Kumar
Publisher: CRC Press
ISBN: 0429894074
Category : Science
Languages : en
Pages : 157

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Book Description
Wheat Blast provides systematic and practical information on wheat blast pathology, summarises research progress and discusses future perspectives based on current understanding of the existing issues. The book explores advance technologies that may help in deciding the path for future research and development for better strategies and techniques to manage the wheat blast disease. It equips readers with basic and applied understanding on the identification of disease, its distribution and chances of further spread in new areas, its potential to cause yield losses to wheat, the conditions that favour disease development, disease prediction modelling, resistance breeding methods and management strategies against wheat blast. Features: Provides comprehensive information on wheat blast pathogen and its management under a single umbrella Covers disease identification and diagnostics which will be helpful to check introduction in new areas Discusses methods and protocol to study the different aspects of the disease such as diagnostics, variability, resistance screening, epiphytotic creation etc. Gives deep insight on the past, present and future outlook of wheat blast research progress This book’s chapters are contributed by experts and pioneers in their respective fields and it provides comprehensive insight with updated findings on wheat blast research. It serves as a valuable reference for researchers, policy makers, students, teachers, farmers, seed growers, traders, and other stakeholders dealing with wheat.

Rice Blast Disease

Rice Blast Disease PDF Author: Robert S. Zeigler
Publisher: Int. Rice Res. Inst.
ISBN: 0851989357
Category : Science
Languages : en
Pages : 642

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Book Description
Pathogen biology. Cell biology of pathogenesis. Signalling systems and gene expression regulating appressorium formation in magnaporthe grisea. Genetic regulation of sporulation in the rice blast fungus. Genetic interactions in magnaporthe grisea that affect cultivar specific avirulence/virulence on rice. Genomic structure and variability in pyricularia grisea. Molecular genetic approach to the study of cultivar specificity in the rice blast fungus. Avirulence genes and mechanisms of genetic instability in the rice blast fungus. Host plant resistance. International collaboration on breeding for resistance to rice blast. Present knowledge of rice resistance genetics and strategies for magnaporthe grisea pathogenicity and avirulence gene analysis. Mapping of blast resistance genes in rice. Molecular genetic analysis fo the rice bacterial blight resistance locus, Xa21. Current status for gene transfer into rice utilizing variety-independent delivery systems. Pathogen population dynamics and utilization of host plant resistance. Virulencecharacteristics of genetic families of pyricularia grisea in Colombia. Race-specific and rate-reducing resistance to rice blast in US rice cultivars. A strategy for accumulating genes for partial resistance to blast disease in rice within a conventional breeding program. Lineage exclusion: a proposal for linking blast population analysis to resistance breeding. Use of host genetic diversity to control cereal diseases: implications for rice blast. Figs, wasps, nematodes and sitting ducks: rice blast, from the outside looking in. Epidemiology, loss assessment, and management. The economic impact of rice blast disease in China. Current rice blast epidemics and their management in Thailand. Rice blast in west Africa: its nature and control. Understanding and modeling leaf blast effects on crop physiology and yield. Methodology for quantifying rice yield effects of blast. The epidemiological basis for blast management. Using simulation models to explore better strategies for the management of blast disease in temperate rice pathosystems. Blast management in high input, high yield potential, temperate rice ecosystems. Practical approaches to rice blast management in tropical monsoon ecosystems, with special reference to Bangladesh. Rice breeding programs, blast epidemics and blast management in the United States. Strategies for the discovery of rice blast fungicides. Biological control of rice leaf blast. Farmers' perspectives. Crop-livestock interactions: implications for crop improvement in sustainable agriculture. Assessing indigenous and traditional knowledge in farming systems. Rice, reason, and resistance: a comparative study of farmers' vs. Scientists' perception and strategies.

Blast Disease of Cereal Crops

Blast Disease of Cereal Crops PDF Author: S. Chandra Nayaka
Publisher: Springer Nature
ISBN: 303060585X
Category : Science
Languages : en
Pages : 227

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Book Description
Blast is an important foliar disease that infects the majority of cereal crops like rice, finger millet, pearl millet, foxtail millet and wheat, and thus resulting in a huge economic impact. The pathogen is responsible for causing epidemics in many crops and commonly shifts to new hosts. Magnaporthe spp. is the most prominent cause of blast disease on a broad host range of grasses including rice as well as other species of poaceae family. To date, 137 members of Poaceae hosting this fungus have been described in Fungal Databases. This book provides information on all blast diseases of different cereal crops. The pathogen evolves quickly due to its high variability, and thus can quickly adapt to new cultivars and cause an epidemic in a given crop. Some of the topics covered here include historical perspectives, pathogen evolution, host range shift, cross-infectivity, and pathogen isolation, use of chemicals fungicides, genetics and genomics, and management of blast disease in different cereal crops with adoption of suitable methodologies.In the past two decades there have been significant developments in genomics and proteomics approaches and there has been substantial and rapid progress in the cloning and mapping of R genes for blast resistance, as well as in comparative genomics analysis for resolving delineation of Magnaporthe species that infect both cereals and grass species. Blast disease resistance follows a typical gene-for-gene hypothesis. Identification of new Avr genes and effector molecules from Magnaporthe spp. can be useful to understand the molecular mechanisms involved in the fast evolution of different strains of this fungal genus. Advances in these areas may help to reduce the occurrence of blast disease by the identification of potential R genes for effective deployment. Additionally, this book highlights the importance of blast disease that infects different cereal hosts in the context of climate change, and genomics approaches that may potentially help in understanding and applying new concepts and technologies that can make real impact in sustainable management of blast disease in different cereal crops.

Biological Control of Rice Diseases

Biological Control of Rice Diseases PDF Author: Samuel S. Gnanamanickam
Publisher: Springer Science & Business Media
ISBN: 9048124654
Category : Science
Languages : en
Pages : 114

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Book Description
There is suf?cient need to document all the available data on biological control of rice diseases in a small volume. Part of this need rests on the global importance of rice to human life. In the ?rst chapter, I have tried to show that rice is indeed life for most people in Asia and shortages in production and availability can lead to a food crisis. While rice is cultivated in most continents, biological disease management attains special relevance to rice farmers of Africa, Asia, and also perhaps, Latin America. These farmers are resource-poor and might not be able to afford the cost of expensive chemical treatments to control devastating rice pathogens such as Magnaporthe oryzae (blast), Xanthomonas oryzae pv. oryzae (bacterial leaf blight), Rhizoctonia solani (sheath blight) and the virus, rice tungro disease. In an earlier volume that I developed under the title, Biological Control of Crop Diseases (Dekker/CRC Publishers, 2002), I included transgenic crops generated for the management of plant pathogens as biological control under the umbrella of a broad de?nition. Dr Jim Cook who wrote the Foreword for the volume lauded the inclusion of transgenic crops and induced systemic resistance (ISR) as a positive trend toward acceptance of host plant resistance as part of biocontrol. I continue to subscribe to this view.

Compendium of Rice Diseases

Compendium of Rice Diseases PDF Author: Robert K. Webster
Publisher: American Phytopathological Society
ISBN:
Category : Science
Languages : en
Pages : 100

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Book Description
Biotic diseases. Bacterial diseases. Seedling, sheath, and grain diseases. Seedling diseases. Leaf sheath and grain diseases. Foliar diseases. Culm and root diseases. Fungal diseases. Seedling diseases. Foliar diseases. Leaf sheath and culm diseases. Root and crown diseases. Grain diseases. Obscure fungal diseases of the foliage and glumes. Diseases caused by viruses and mycoplasmalike organisms. Virus diseases. Diseases caused by mycoplasmalike organisms. Diseases caused by viruslike agents. Diseases caused by nematodes. Abiotic diseases and disorders. Nutrient deficiencies and toxicities.

Major Fungal Diseases of Rice

Major Fungal Diseases of Rice PDF Author: S. Sreenivasaprasad
Publisher: Springer Science & Business Media
ISBN: 9401721572
Category : Science
Languages : en
Pages : 366

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Book Description
Major Fungal Diseases of Rice: Recent Advances provides a comprehensive overview of latest research in rice fungal pathology. There are 25 chapters dealing with the blast, sheath blight, sheath rot, brown spot and scald diseases of rice as well as some broader topics. The book covers recent progress in a number of key fundamental aspects such as pathogenicity, pathogen diversity, molecular characterisation, gene cloning, genetics of host resistance and host-pathogen interactions. It also presents the current status and perspectives in strategic and applied areas such as epidemiology, resistance breeding, biological control, induced resistance, seed-borne diseases and quarantine issues and disease management strategies. This book is essential for rice researchers, pathologists and breeders and will also be suitable for cereal and plant pathologists in general, as there is an extensive coverage of recent research advances in rice blast, a model system in plant pathology.

Rice Diseases

Rice Diseases PDF Author: Shu Huang Ou
Publisher: IRRI
ISBN: 0851985459
Category : Law
Languages : en
Pages : 411

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Book Description
Virus and MLO diseases; Bacterial diseases; Fungus diseases - foliage diseases; Fungus diseases - diseases of stem, leaf sheath and root; Fungus diseases - seedling diseases; Fungus diseases - diseases of grain and inflorescence; Diseases caused by nematodes; Physiological diseases.

Rice Blast: Interaction with Rice and Control

Rice Blast: Interaction with Rice and Control PDF Author: Shinji Kawasaki
Publisher: Springer Science & Business Media
ISBN: 9781402012280
Category : Technology & Engineering
Languages : en
Pages : 318

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Book Description
For the researchers of rice blast disease and plant blast resistances, IRBC is an important chance to exchange information and discussion on rice blast, which has been a rather minor topic on international plant pathological meetings. Especially for those in Asia, where the blast is one the most important agricultural concerns, IRBC was a unique opportunity to discuss on rice blast with scientists in the West, in where it is achieving the positions of a model pathogen and a model system to study plant microbe interactions. However, I and probably many of Japanese blast researchers have felt an accumulated frustration that, in world plant pathological conferences, the information presented from Asia is only a small fraction although they have much more information that may be valuable for world plant pathologists and resistance researchers. I have noticed also some concept gaps between the researchers in East and West, particularly in the field resistance and the multiline system. There seems to be few who study field resistance and multilines in the West, while in Japan they are expected to become mainstream strategies to suppress the disease. Surely there is a great value in rd having 3 IRBC in Japan for cultivating wider communication between the scientists of the East and West.