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632.38 --- Virus diseases of plants --- Theses --- Sciences and engineering --- biological sciences --- agriculture --- plant pathology --- 632.38 Virus diseases of plants --- plant pathology. --- Tomatoes --- Crops --- Uganda --- Diseases and pests --- Tomato mosaic virus --- Leaves --- Food crops --- Biological sciences --- Agriculture --- Plant pathology.

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The interaction between the fungus Leptosphaeria maculans and oilseed rape (Brassica napus) is becoming an excellent model system for studying genetics of host-pathogen interactions. Leptosphaeria maculans causes phoma stem canker (blackleg) on oilseed rape and other Brassica crops worldwide. Recently, application of molecular techniques has led to increased understanding of the genetics of this hemibiotrophic interaction. The complete sequences of the genomes of L. maculans and B. rapa (comprising the Brassica A genome) will be available soon. This will provide new opportunities to investigate basic metabolic pathways in the host and the pathogen, and detailed knowledge of the disease process. Worldwide, the major strategy for control of phoma stem canker is the use of cultivars with resistance to L. maculans. However, serious epidemics have occurred recently in Australia and Europe when L. maculans populations changed such that major gene resistance in oilseed rape was overcome. Thus there is an urgent need to find and deploy sources of resistance to L. maculans in a manner that enhances their durability. This book provides researchers with a synthesis of the recent studies relating to strategies for management of resistance genes to provide effective control of L. maculans, and will stimulate further research on this important model system.

Rape (Plant) --- Brassica --- Leptosphaeria --- Disease and pest resistance --- Genetic aspects --- Genetics --- Breeding --- Pleosporaceae --- Cruciferae --- Brassica napus --- Brassica napus napobrassica --- Colza --- Winter rape --- Plant diseases. --- Botany. --- Agriculture. --- Plant Pathology. --- Plant Sciences. --- Botanical science --- Phytobiology --- Phytography --- Phytology --- Plant biology --- Plant science --- Biology --- Natural history --- Plants --- Botany --- Communicable diseases in plants --- Crop diseases --- Crops --- Diseases of plants --- Microbial diseases in plants --- Pathological botany --- Pathology, Vegetable --- Phytopathology --- Plant pathology --- Vegetable pathology --- Agricultural pests --- Crop losses --- Diseased plants --- Phytopathogenic microorganisms --- Plant pathologists --- Plant quarantine --- Farming --- Husbandry --- Industrial arts --- Life sciences --- Food supply --- Land use, Rural --- Pathology --- Diseases and pests --- Diseases --- Wounds and injuries --- Plant pathology. --- Plant science. --- Floristic botany

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Plant disease epidemiology deals with diseases in plant populations. During the past century, it has become a vibrant field of science, achieving significant conceptual innovations with an important impact on the management of plant diseases. Plant disease epidemiology mobilises concepts and methods from ecology, genetics, environmental physics, botany, and mathematics. It deals with cultivated and non-cultivated plants in environments where human activities may have had an impact. Now, plant disease epidemiology faces important questions. Global climate is changing at a rapid rate: will it render plant diseases more, or less, harmful to man-made ecosystems? There is much debate on this issue, partly because climate has sometimes very large effects on the local environment of growing plant canopies, and because the physical micro-environment so strongly influences plant diseases and their consequences on ecosystem functioning and performance and the way they are managed. Plant disease epidemiologists have a strong scientific tradition in studying climate-pathogen-disease relationships. Biodiversity is also of global concern. The decline of global biodiversity that is currently taking place has been referred to as the sixth great extinction process our planet has experienced during its history, but this time, it is man-made. Generations of plant pathologists, and especially, of plant disease epidemiologists, have been dealing with biodiversity. It is from this diversity that presumably the most potent instrument for disease management has been developed by plant pathologists: host plant resistance. Host plant diversity, and the disease resistance genes it harbours, can be deployed over time and space, according to epidemiological principles. Sustainable production and protection systems also need to be devised which could exploit scarcer resources sparingly, and if possible enhance the resource base. Plant disease epidemiologists alone cannot provide answers to such questions, but certainly could significantly contribute to these new strategies. This book provides an overview of some of the latest research in plant disease epidemiology from researchers at the cutting edge of this important discipline. Reprinted from European Journal of Plant Pathology, Volume 115, No. 1, 2006.

Plant diseases --- Epidemiology. --- Plant disease epidemiology --- Plant epidemiology --- Plant epiphytology --- Epidemiology --- Botany. --- Plant diseases. --- Agriculture. --- Plant Sciences. --- Plant Pathology. --- Farming --- Husbandry --- Industrial arts --- Life sciences --- Food supply --- Land use, Rural --- Botany --- Communicable diseases in plants --- Crop diseases --- Crops --- Diseases of plants --- Microbial diseases in plants --- Pathological botany --- Pathology, Vegetable --- Phytopathology --- Plant pathology --- Plants --- Vegetable pathology --- Agricultural pests --- Crop losses --- Diseased plants --- Phytopathogenic microorganisms --- Plant pathologists --- Plant quarantine --- Botanical science --- Phytobiology --- Phytography --- Phytology --- Plant biology --- Plant science --- Biology --- Natural history --- Pathology --- Diseases and pests --- Diseases --- Wounds and injuries --- Plant science. --- Plant pathology. --- Floristic botany

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This comprehensive volume consists of a series of up-to-date reviews, each incorporating current models and knowledge related to mechanisms of resistance either expressed constitutively or induced systemically in plants. Each chapter covers a topic related to the phenomenon of plant resistance to fungal and bacterial pathogens, insects, nematodes, viruses or abiotic stress in plants, as well as the application of this knowledge to protect crops now and in the future. Researchers, upper-level undergraduate and graduate students, and those teaching courses in plant physiology, entomology and plant pathology will find this volume a much needed asset. Featured Topics include: QTL analysis of multigenic disease resistance in plant breeding Ultrastructural studies in plant disease resistance Chemical signals in plant resistance: salicylic acid Signaling in plant resistance responses: divergence and cross-talk of defense pathways Tree defenses against insects Chemical signals in plants: jasmonates and the role of insect-derived elicitors in responses to herbivores Engineering plants for durable disease resistance Commercialization of plant systemic defense activation: theory, problems and successes.

Plants --- Plant genetics. --- Disease and pest resistance. --- Genetics --- Disease resistance of plants --- Immunity (Plants) --- Pest resistance of plants --- Resistance of plants to disease --- Resistance of plants to pests --- Plant defenses --- Plant immunology --- Immunity --- Pest resistance --- Hardiness --- Plant diseases. --- Botany. --- Biochemistry. --- Agriculture. --- Plant Ecology. --- Plant Pathology. --- Plant Sciences. --- Plant Biochemistry. --- Plant Genetics and Genomics. --- Farming --- Husbandry --- Industrial arts --- Life sciences --- Food supply --- Land use, Rural --- Biological chemistry --- Chemical composition of organisms --- Organisms --- Physiological chemistry --- Biology --- Chemistry --- Medical sciences --- Botanical science --- Phytobiology --- Phytography --- Phytology --- Plant biology --- Plant science --- Natural history --- Botany --- Communicable diseases in plants --- Crop diseases --- Crops --- Diseases of plants --- Microbial diseases in plants --- Pathological botany --- Pathology, Vegetable --- Phytopathology --- Plant pathology --- Vegetable pathology --- Agricultural pests --- Crop losses --- Diseased plants --- Phytopathogenic microorganisms --- Plant pathologists --- Plant quarantine --- Ecology --- Composition --- Pathology --- Diseases and pests --- Diseases --- Wounds and injuries --- Phytoecology --- Vegetation ecology --- Plant pathology. --- Plant science. --- Plant biochemistry. --- Plant ecology. --- Floristic botany --- Phytochemistry --- Plant biochemistry --- Plant chemistry --- Biochemistry --- Phytochemicals --- Plant biochemical genetics --- Floristic ecology

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It is my privilege to contribute the foreword for this unique volume entitled: “Plant Tissue Culture Engineering,” edited by S. Dutta Gupta and Y. Ibaraki. While there have been a number of volumes published regarding the basic methods and applications of plant tissue and cell culture technologies, and even considerable attention provided to bioreactor design, relatively little attention has been afforded to the engineering principles that have emerged as critical contributions to the commercial applications of plant biotechnologies. This volume, “Plant Tissue Culture Engineering,” signals a turning point: the recognition that this specialized field of plant science must be integrated with engineering principles in order to develop efficient, cost effective, and large scale applications of these technologies. I am most impressed with the organization of this volume, and the extensive list of chapters contributed by expert authors from around the world who are leading the emergence of this interdisciplinary enterprise. The editors are to be commended for their skilful crafting of this important volume. The first two parts provide the basic information that is relevant to the field as a whole, the following two parts elaborate on these principles, and the last part elaborates on specific technologies or applications.

Plant tissue culture. --- Plant biotechnology. --- Crop biotechnology --- Crops --- Plants --- Agricultural biotechnology --- Tissue culture --- Biotechnology --- Botany. --- Cytology. --- Biology --- Developmental biology. --- Plant anatomy. --- Plant diseases. --- Plant Sciences. --- Cell Biology. --- Computer Appl. in Life Sciences. --- Developmental Biology. --- Plant Anatomy/Development. --- Plant Pathology. --- Data processing. --- Botany --- Communicable diseases in plants --- Crop diseases --- Diseases of plants --- Microbial diseases in plants --- Pathological botany --- Pathology, Vegetable --- Phytopathology --- Plant pathology --- Vegetable pathology --- Agricultural pests --- Crop losses --- Diseased plants --- Phytopathogenic microorganisms --- Plant pathologists --- Plant quarantine --- Plant structure --- Structural botany --- Vegetable anatomy --- Anatomy --- Development (Biology) --- Growth --- Ontogeny --- Cell biology --- Cellular biology --- Cells --- Cytologists --- Botanical science --- Phytobiology --- Phytography --- Phytology --- Plant biology --- Plant science --- Natural history --- Pathology --- Diseases and pests --- Diseases --- Wounds and injuries --- Structure --- Plant science. --- Cell biology. --- Bioinformatics . --- Computational biology . --- Plant development. --- Plant pathology. --- Development of plants --- Plant development --- Developmental biology --- Growth (Plants) --- Bioinformatics --- Bio-informatics --- Biological informatics --- Information science --- Computational biology --- Systems biology --- Data processing --- Floristic botany