Download or read book Cloning Genes of Pseudomonas Syringae Pv Tabaci BR 2 Involved in Pathogenicity and Tabtoxin Production written by Karen Engst and published by . This book was released on 1987 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regulation of Tabtoxin Production in Pseudomonas Syringae Pv Coronafaciens written by Terese M. Barta and published by . This book was released on 1992 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pathogenicity Genes of Pseudomonas Syringae Pv Tabaci written by Yangkyo Park Salch and published by . This book was released on 1987 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phenotypic and Genotypic Relationship Between Tabtoxin Production and Pathogenicity in Pseudomonas Syringae Pv Tabaci Strain Ptbr2 024 written by Karen Engst and published by . This book was released on 1992 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pseudomonas syringae pv. tabaci strain PTBR2.024 produces tabtoxin and causes wildfire disease on tobacco and green bean. PTBR7.000, a Tn5 mutant of PTBR2.024, does not produce tabtoxin, is nonpathogenic on tobacco and is prototrophic. A 3-kb fragment from a genomic library of the parent strain PTBR2.024 complemented both mutant phenotypes. This 3-kb fragment contains two open reading frames (ORF), ORF1 and ORF2, and two truncated ORFs, ORF3 and ORF4. The Tn5 insert in PTBR7.000 was mapped to ORF2, and complementation studies showed that an intact ORF2 was sufficient to restore tabtoxin production and pathogenicity. The deduced amino acid sequences of ORF2 and truncated ORF3 contain significant homology to bacterial lysine biosynthetic enzymes, diaminopimelate decarboxylase and $Deltasp1$-piperidine-2,6-dicarboxylate succinyl transferase, respectively. ORF2, however, is not required for lysine biosynthesis. We designated the sequence corresponding to ORF2 as gene tabA and propose that the product of tabA is an enzyme in the tabtoxin biosynthetic pathway that recognizes a substrate analogue of a compound in the lysine biosynthetic pathway. Another Tn5 insertion mutant of PTBR2.024, PTBR6.000, produces tabtoxin but is not pathogenic on tobacco. An 11-kb EcoRI genomic DNA fragment from PTBR2.024 restored pathogenicity to the Pat$sp-$ mutant PTBR6.000. A diffusible toxin restoration factor, TRF, produced by tabtoxin-producing strains restored toxin production to three independent mutants of Pseudomonas syringae pv. tabaci that are defective in tabtoxin production (Tox$sp-$). Glutamine overcomes the inhibition produced by both PTBR2.024 and the Tox$sp-$ mutants suggesting that the toxin produced by the Tox$sp-$ mutants, in the presence of TRF, was tabtoxin. Genetic studies suggested that TRF is an intermediate in tabtoxin biosynthesis. Preliminary evidence indicates that TRF is a low molecular weight anionic compound that is heat labile.
Download or read book Genetics of Coronatine Toxin Production in Pseudomonas Syringae Pv Glycinea written by Joe Wayne Willis and published by . This book was released on 1984 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biotechnology And Plant Protection Bacterial Pathogenesis And Disease Resistance Proceedings Of The Fourth International Symposium written by Donald D Bills and published by World Scientific. This book was released on 1994-07-27 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: An important aspect of successful agriculture is the control of plant diseases that reduce productivity, quality, and profitability. Application of exogenous chemicals and development of endogenous resistance are two general approaches to controlling plant diseases. As the former falls under continued attack and regulation, the latter fortunately becomes more achievable through biotechnology. Biotechnology and Plant Protection: Bacterial Pathogenesis and Disease Resistance explores the application of biotechnology to understanding bacterial pathogenesis and the nature of plant resistance to bacterial disease. More important, the information presented in this volume foreshadows the development of plants with increased native resistance to bacterial disease. Classical plant breeding has made great progress in developing resistant plants through largely empirical approaches, but a direct understanding of the genetic aspects of pathogenesis and resistance will accelerate the process.
Download or read book Plant Pathogenesis and Resistance written by Jeng-Sheng Huang and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 695 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each plant-pathogen interaction involves a two-way molecular communication. On one hand, the pathogen perceives signals from the plant, secretes chemical arsenals to establish infection courts, and produces metabolites that disrupt structural integrity, alter cellular function, and circumvent host defenses. On the other hand, the plant senses the signals from the pathogen, reinforces its cell walls, and accumulates phytoalexins and pathogenesis-related proteins in an attempt to defend itself. The production of pathogenicity and virulence factors by the pathogen, the elicitation of defense mechanisms by the plant, and the dynamic interaction of the two are the focal points of this book. The book will be of interest to researchers and advanced undergraduate and graduate students in the areas of plant pathology, plant physiology, and plant biochemistry.
Download or read book Applied and Environmental Microbiology written by and published by . This book was released on 1993 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Progress in Solving Some Farm Problems of Illinois written by University of Illinois at Urbana-Champaign. Agricultural Experiment Station and published by . This book was released on 1986 with total page 232 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 Pathogenesis by Pseudomonas Syringae Pv Tabaci written by Kimberly K. Knoche and published by . This book was released on 1990 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant microbe Interactions 2 written by Gary Stacey and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant-Microbe Interactions, Volume 2 Volume 1 of this series has made its appearance and dealt forcefully with impor tant current topics in the field of plant-microbe interactions. We believe that the quality of those chapters was high and should serve as a focal point for the state of the art as well as an enduring reference. Volume 2 builds upon these accom plishments. Chapter 1 discusses the fascinating lipo-chitin signal molecules from Rhizo bium, aspects regarding their biosynthesis, and the basis for host specificity. These molecules are a cardinal example of how microorganisms influence plant development and stimulate speculation that they have identified a previously un known aspect of plant hormone activity. Chapter 2 continues the discussion of Rhizobium by considering the trafficking of carbon and nitrogen in nodules. Al though the ostensible advantage of nodules to plants is the fixation of atmos pheric nitrogen, the actual process involved in supplying reduced nitrogen to the plant host is complex.
Download or read book Delivery and Perception of Pathogen Signals in Plants written by Noel T. Keen and published by . This book was released on 2001 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of the past 50 years of plant microbe research heads 26 papers from the 8th Japan-US Cooperative Science Seminar on "Plant perception of pathogen signals" held in June 1999 in Marina del Ray, CA. Parallels between plant and animal host defense systems is a major theme. Historical topics of interest that continue to draw attention include: growth hormones, fungal and bacterial toxins, the avirulent gene concept, pathogen elicitors and hypersensitive responses, and the avirulence and harpin molecules. A new seminar focus is Hrp delivery system and apoptosis. Keen is at the U. of California, Riverside. Lacks an index. Annotation copyrighted by Book News, Inc., Portland, OR.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1987 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxins in Plant Disease Development and Evolving Biotechnology written by Rajeev K. Upadhyay and published by . This book was released on 1997 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Toxins produced by plant pathogens are known to play an important role in plant pathogenesis and are actively involved in part of the disease expression. This text deals with both host-specific and non-host specific toxins in order to describe host-pathogen interactions leading to disease development and their biotechnological exploitation using genetic engineering tools for disease and weed management.
Download or read book Molecular Aspects of Plant Pathogen Interaction written by Archana Singh and published by Springer. This book was released on 2018-02-15 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book offers an integrated overview of plant–pathogen interactions. It discusses all the steps in the pathway, from the microbe–host-cell interface and the plant’s recognition of the microbe to the plant’s defense response and biochemical alterations to achieve tolerance / resistance. It also sheds light on the classes of pathogens (bacteria, fungus and viruses); effector molecules, such as PAMPs; receptor molecules like PRRs and NBS-LRR proteins; signaling components like MAPKs; regulatory molecules, such as phytohormones and miRNA; transcription factors, such as WRKY; defense-related proteins such as PR-proteins; and defensive metabolites like secondary metabolites. In addition, it examines the role of post-genomics, high-throughput technology (transcriptomics and proteomics) in studying pathogen outbreaks causing crop losses in a number of plants. Providing a comprehensive picture of plant-pathogen interaction, the updated information included in this book is valuable for all those involved in crop improvement.
Download or read book Microbial Control of Weeds written by D.O. TeBeest and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is appropriate at this time to reflect on two decades of research in biological control of weeds with fungal plant pathogens. Some remarkable events have occurred in the last 20 years that represent a flurry of activity far beyond what could reasonably have been predicted. In 1969 a special topics review article by C. L. Wilson was published in Annual Reviews of Phytopathology that examined the literature and the potential for biological control of weeds with plant pathogens. In that same year, experiments were conducted in Arkansas that determined whether a fungal plant pathogen could reduce the infestation of a single weed species in rice fields. In Florida a project was under way to determine the potential use of a soil-borne plant pathogen as a means for controlling a single weed species in citrus groves. Work in Australia was published that described experiments that sought to determine whether a pathogen could safely and deliberately be imported and released into a country to control a weed of agricultural importance. All three projects were successful in the sense that Puccinia chondrillina was released into Australia to control rush skeleton weed and was released later into the United States as well, and that Colletotrichum gloeosporioides f.sp. aeschynomene and Phytophthora palmivora were later both marketed for the specific purpose of controlling specific weed species.
