Download or read book Molecular Genetics of Pathogenicity of Erwinia Amylovora written by Eva Maria Steinberger and published by . This book was released on 1988 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Genetics of Pathogenicity of Erwinia Amylovora written by David William Bauer and published by . This book was released on 1990 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Genetics of Pathogenicity of Erwinia Amylovora written by D.W. Bauer and published by . This book was released on 1991 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Studies on Pathogenicity and Virulence Factors of Erwinia Amylovora written by Ron Joel Laby and published by . This book was released on 1991 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of the Genome of Erwinia Amylovora Identification of Novel Virulence Factors Using Bioinformatics and Molecular Studies on the Translocation Into Plant Cells of DSPA E a Pathogenicity Factor in Erwinia Amylovora written by Ana Maria Bocsanczy Burducea and published by . This book was released on 2008 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fire blight is a devastating disease of rosaceous plants, especially apple and pears. The Gram-negative bacterium Erwinia amylovora is the causal agent of fire blight and is phylogenetically related to important animal and plant pathogenic enterobacteria. The genome of E. amylovora, strain Ea273, was sequenced at the Sanger Institute, and the sequence is publicly available at their web page. In Chapter 2 a computational approach on the genome sequence at the various stages of assembly was used to produce a preliminary annotation of virulence factors by similarity with known factors. Two novel type-three secretion system (T3SS) islands, which seemed more closely related to those of animal pathogens, were identified in the genome. A comparative analysis revealed loss of genes by the genome of Ea273 when compared with closely related Escherichia coli and Salmonella sp. at the core genome level, and acquisition of plant-pathogenic virulence factors. In Chapter 3, a combination of computational and targeted genetic methods were applied to predict genetic signatures of promoter regions associated with the HrpL regulon (hrp boxes), producing a list of candidate genes possibly expressed during infection. Two of the candidate genes were characterized and hopX1 was shown to have a function related to avirulence and HR suppression. The number of genes or operons related to virulence reported previously to the availability of the genome sequence was limited, and molecular genetic studies of E. amylovora typically focused on individual systems, such as the translocation of DspA/E work presented in Chapter 4. Using a CyaA reporter system, I demonstrated that DspA/E is translocated into plant cells, and that HrpN and HrpJ are necessary for its translocation. The results presented in this Chapter suggest that HrpN might be part of the translocation apparatus of DspA/E, and HrpJ might regulate or stabilize the secretion of HrpN in vitro. The availability of the genome sequence of E. amylovora contributes to the formulation of new hypothesis, offers an important source of information for evolutive and physiological studies, and opens an era of post-genomics analysis with opportunities for the use of high throughput approaches to study this important pathogen.
Download or read book MOLECULAR GENETIC STUDY OF ERWINIA AMYLOVORA written by Laura Ramos and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fire blight is the most destructive bacterial disease of apples and pears worldwide. Apples are the second most consumed fresh fruit in the United States. The causal agent of fire blight is Erwinia amylovora. Except for streptomycin, there is no registered product that can effectively prevent E. amylovora from infecting apple and pear orchards. Unfortunately, in the United States, streptomycin-resistant strains of E. amylovora have been found. A better understanding in general of the molecular genetics of the bacteria could lead not only to a better comprehension of the disease process but also the development of additional reliable management tools. In this research, three E. amylovora genes were studied: a regulatory gene called rpoN; and two metabolic genes called argD and pyrC. I found that the rpoN gene was essential for pathogenicity, for the hypersensitive response in non-host tobacco, and for the expression of the HrpN protein. The rpoN mutant was prototroph, indicating that the rpoN mutant non-pathogenic phenotype was not due to a defect in basic metabolism or growth. The argD gene is essential for the biosynthesis of the amino acid arginine in bacteria, including E. amylovora. E. amylovora argD mutant was an arginine auxotroph and did not cause disease or grow in host tissue. This study suggests that E. amylovora cannot obtain enough arginine from the host during infection. The pyrC gene is indispensable for the biosyntheis of pyrimidines. Surprisingly, even though the E. amylovora pyrC mutant was a uracil auxotroph, it was able to obtain uracil from the host, grow and cause disease. This study suggests that E. amylovora can obtain and utilize sufficient uracil from the host. The study of the last two genes gave us an insight about the nutrition requirements that the bacteria have during infection and after infecting the host. This knowledge could help develop potential fire blight controls.
Download or read book Fire Blight written by Joël L. Vanneste and published by CABI. This book was released on 2000-01-01 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addresses the bacterial disease, fire blight, and includes its epidemiology, distribution, host range, detection and infection. This work also considers the pathogen, including its biochemistry, genetics and pathogenicity, and finally reviews control, including biological methods.
Download or read book Fire Blight written by Tom Van Der Zwet and published by American Phytopathological Society. This book was released on 2012 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Molecular Genetic Analysis of the Fireblight Pathogen Erwinia Amylovora written by Jonathan S. Milner and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive and Molecular Phytopathology written by Yuri Dyakov and published by Elsevier. This book was released on 2007-01-09 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a collection of information on successive steps of molecular ‘dialogue’ between plants and pathogens. It additionally presents data that reflects intrinsic logic of plant-parasite interactions. New findings discussed include: host and non-host resistance, specific and nonspecific elicitors, elicitors and suppressors, and plant and animal immunity. This book enables the reader to understand how to promote or prevent disease development, and allows them to systematize their own ideas of plant-pathogen interactions. * Offers a more extensive scope of the problem as compared to other books in the market* Presents data to allow consideration of host-parasite relationships in dynamics and reveals interrelations between pathogenicity and resistance factors* Discusses beneficial plant-microbe interactions and practical aspects of molecular investigations of plant-parasite relationships* Compares historical study of common and specific features of plant immunity with animal immunity
Download or read book Virulence Mechanisms of Bacterial Pathogens written by Indira T. Kudva and published by John Wiley & Sons. This book was released on 2020-07-10 with total page 871 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ground-breaking overview of an enduring topic Despite the use of antibiotics, bacterial diseases continue to be a critical issue in public health, and bacterial pathogenesis remains a tantalizing problem for research microbiologists. This new edition of Virulence Mechanisms of Bacterial Pathogens broadly covers the knowledge base surrounding this topic and presents recently unraveled bacterial virulence strategies and cutting-edge therapies. A team of editors, led by USDA scientist Indira Kudva, compiled perspectives from experts to explain the wide variety of mechanisms through which bacterial pathogens cause disease: the host interface, host cell enslavement, and bacterial communication, secretion, defenses, and persistence. A collection of reviews on targeted therapies rounds out the seven sections of this unique book. The new edition provides insights into some of the most recent advances in the area of bacterial pathogenesis, including how metabolism shapes the host-pathogen interface interactions across species and genera mechanisms of the secretion systems evasion, survival, and persistence mechanisms new therapies targeting various adaptive and virulence mechanisms of bacterial pathogens Written to promote discussion, extrapolation, exploration, and multidimensional thinking, Virulence Mechanisms of Bacterial Pathogens serves as a textbook for graduate courses on bacterial pathogenesis and a resource for specialists in bacterial pathogenicity, such as molecular biologists, physician scientists, infectious disease clinicians, dental scientists, veterinarians, molecular biologists, industry researchers, and technicians.
Download or read book Pathogenesis and Host Specificity in Plant Diseases Prokaryotes written by Uma Shankar Singh and published by Pergamon. This book was released on 1995 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forms part of the three-volume set, Pathogenesis & Host Specificity in Plant Diseases , and deals with pathogenesis and host specificity in plant pathogenic prokaryotes. Pathogenesis & Host Specificity in Plant Diseases as a whole is the first complete publication covering the mechanism of host specificity and pathogenesis in plant diseases, bringing together all knowledge about plant pathology into one fully comprehensive source. The main aim of the work is to compile, critically analyze and correlate the information available on all aspects of pathogenesis and host specificity in important plant-pathogen systems representing different types of parasitism and symbiotic, mutualistic and antagonistic associations. Over 100 authors have contributed state-of-the-art chapters, all of whom are internationally recognised as leading experts in their fields. Subject matter is clear and readable throughout and is supported by clear diagrams, tables and photographs. Each individual volume is available separately or in a three-volume set.
Download or read book Pathogenesis and Host Specificity in Plant Diseases written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Induced Resistance for Plant Defense written by Dale R. Walters and published by John Wiley & Sons. This book was released on 2014-10-20 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Induced resistance offers the prospect of broad spectrum, long-lasting and potentially environmentally-benign disease and pest control in plants. Induced Resistance for Plant Defense 2e provides a comprehensive account of the subject, encompassing the underlying science and methodology, as well as research on application of the phenomenon in practice. The second edition of this important book includes updated coverage of cellular aspects of induced resistance, including signalling and defenses, costs and trade-offs associated with the expression of induced resistance, research aimed at integrating induced resistance into crop protection practice, and induced resistance from a commercial perspective. Current thinking on how beneficial microbes induce resistance in plants has been included in the second edition. The 14 chapters in this book have been written by internationally-respected researchers and edited by three editors with considerable experience of working on induced resistance. Like its predecessor, the second edition of Induced Resistance for Plant Defense will be of great interest to plant pathologists, plant cell and molecular biologists, agricultural scientists, crop protection specialists, and personnel in the agrochemical industry. All libraries in universities and research establishments where biological, agricultural, horticultural and forest sciences are studied and taught should have copies of this book on their shelves.
Download or read book Biofilms in the Food Environment written by Anthony L. Pometto III and published by John Wiley & Sons. This book was released on 2015-11-02 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: In nature, microorganisms are generally found attached to surfaces as biofilms such as dust, insects, plants, animals and rocks, rather than suspended in solution. Once a biofilm is developed, other microorganisms are free to attach and benefit from this microbial community. The food industry, which has a rich supply of nutrients, solid surfaces, and raw materials constantly entering and moving through the facility, is an ideal environment for biofilm development, which can potentially protect food pathogens from sanitizers and result in the spread of foodborne illness. Biofilms in the Food Environment is designed to provide researchers in academia, federal research labs, and industry with an understanding of the impact, control, and hurdles of biofilms in the food environment. Key to biofilm control is an understanding of its development. The goal of this 2nd edition is to expand and complement the topics presented in the original book. Readers will find: The first comprehensive review of biofilm development by Campylobacter jejuni An up-date on the resistance of Listeria monocytogenes to sanitizing agents, which continues to be a major concern to the food industry An account of biofilms associated with various food groups such as dairy, meat, vegetables and fruit is of global concern A description of two novel methods to control biofilms in the food environment: bio-nanoparticle technology and bacteriophage Biofilms are not always a problem: sometimes they even desirable. In the human gut they are essential to our survival and provide access to some key nutrients from the food we consume. The authors provide up-date information on the use of biofilms for the production of value-added products via microbial fermentations. Biofilms cannot be ignored when addressing a foodborne outbreak. All the authors for each chapter are experts in their field of research. The Editors hope is that this second edition will provide the bases and understanding for much needed future research in the critical area of Biofilm in Food Environment.
Download or read book Phytobacteriology written by J. D. Janse and published by CABI. This book was released on 2006 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive manual of phytobacteriology is heavily illustrated with over 200 colour photographs and line illustrations. It begins by outlining the history and science of bacteriology and gives an overview of the diversity and versatility of complex bacteria. It then explains the characterization, identification and naming of complex bacteria, and explores how bacteria can cause disease and how plants react to such disease. The book also discusses the economic importance of bacterial diseases as well as strategies for their control and the reduction of crop losses. It concludes with fifty examples of plant pathogenic bacteria and the diseases that they cause.
Download or read book Phytopathogenic Prokaryotes written by Mark S. Mount and published by . This book was released on 1982 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: V.1 - Phytopathogenic prokaryotes; Concepts for plant interactions with prokaryotes; Prokaryote interactions on plant surfaces; Prokaryote interactions within the plant; v.2 - Epidemiology and dispersal; Host coevolution with the pathogen; Pathogen coevolution with the host; Strategies for control; Cultivation and preservation.
