Download or read book Bacillus thuringiensis Biotechnology written by Estibaliz Sansinenea and published by Springer Science & Business Media. This book was released on 2012-03-14 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacillus thuringiensis (Bt) has been used as a biopesticide in agriculture, forestry and mosquito control because of its advantages of specific toxicity against target insects, lack of polluting residues and safety to non-target organisms. The insecticidal properties of this bacterium are due to insecticidal proteins produced during sporulation. Despite these ecological benefits, the use of Bt biopesticides has lagged behind the synthetic chemicals. Genetic improvement of Bt natural strains, in particular Bt recombination, offers a promising means of improving efficacy and cost-effectiveness of Bt-based bioinsecticide products to develop new biotechnological applications. On the other hand, the different Bacillus species have important biotechnological applications; one of them is carried out by producing secondary metabolites, which are the study object of natural product chemistry. The amazing structural variability of these compounds has attracted the curiosity of chemists and the biological activities possessed by natural products have inspired the pharmaceutical industry to search for lead structures in microbial extracts. Screening of microbial extracts reveals the large structural diversity of natural compounds with broad biological activities, such as antimicrobial, antiviral, immunosuppressive, and antitumor activities that enable the bacterium to survive in its natural environment. These findings widen the target range of Bacillus spp., in special B. thuringiensis, besides insecticidal activity and help people to better understand its role in soil ecosystem.
Download or read book Bacillus Thuringiensis written by David P. Sanders and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This monograph contains four chapters, each of which provides a different perspective on biopesticides. Chapter One concerns the use of biopesticides in sustainable agriculture, including the interactions between biopesticides and chemical pesticides, production issues, and opportunities for future research. Chapter Two describes the bottom-up approach for using Bacillus thuringiensis (Bt) as a biopesticide and for enhancing host plant resistance against major foliage feeders through deployment of suitable cry genes. Chapter Three reviews strategies for mitigating the spread of Bt resistance and improving insecticidal activity against Bt-susceptible pests. Lastly, Chapter Four aims to revise, debate, and evaluate the effects of Bt as phosphate solubilizing and phosphorus uptake by plant establishment"--
Download or read book Bacillus Thuringiensis written by Robert Bélanger and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Chapter One, André L de A Melo, Ph.D. discusses the spore-forming bacterium Bacillus thuringiensis and its uses as a bio-insecticide, also touching on ways to combat insect resistance. In Chapter Two, Karim Ennouri proposes the bacterium Bacillus thuringiensis as an important biopesticide because of the entomopathogenic effect of delta-endtoxins as well as its efficiency against insects resistant to chemical insecticides. In conclusion, Rafael C Lajmanovich, Candela S Martinuzzi, Carlina Colussi, Paola M Peltzer, Agustín Bassó, Andrés M Attademo, and Lucila M Curi present a study exploring the impact of a GM Bt-soybean-based diet, as opposed to a lettuce diet, on tadpoles.
Download or read book Bacterial Control of Mosquitoes Black Flies written by Huguette de Barjac and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mosquitoes and black flies are a constant threat to health and comfort, yet the modern chemical pesticides used to control them have cre ated serious ecological problems. Populations of resistant mosquitoes and black flies have evolved, beneficial insects and natural predators have been destroyed, and environmental pollution has increased worldwide. Therefore, scientists have energetically sought new, environmentally safe technologies to combat mosquitoes and black flies and the diseases they carry. Among the most effective alternative means of controlling these pests are the highly spe cific microbial agents derived from Bacillus tburingiensis or Bacillus spbaericus. The microbial control of mosquitoes and black flies is a very important, rapidly developing area of science. Entomologists and microbiologists have already achieved spectacular successes using B. tburingiensis and B. spbaericus against these pests. Recent discoveries of new bacterial isolates specific to new hosts and recent genetic improvements in these isolates have created the potential for wide-scale use of these biological control agents. Efficient microbial control of mosquitoes and black flies can now be achieved, but a proper knowledge of factors relating to the safe and effective use of these biological control agents is necessary. The efficacy of B. tburingiensis and B. spbaericus is influenced by the inherent differential tol erance of the target mosquitoes or black flies, by the formulation technology and application of these agents, and by environmental factors, especially sun light and temperature.
Download or read book Bacillus Thuringiensis for Managing Gypsy Moth written by Richard C. Reardon and published by . This book was released on 1994 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inclusions in Prokaryotes written by Jessup M. Shively and published by Springer Science & Business Media. This book was released on 2006-05-04 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new series "Microbiology Monographs" begins with two volumes on intracellular components in prokaryotes. In this first volume, "Inclusions in Prokaryotes", the components, labeled inclusions, are defined as discrete bodies resulting from synthesis of a metabolic product. Research on the biosynthesis and reutilization of the accumulated materials is still in progress, and interest in the inclusions is growing. This comprehensive volume provides historical background and comprehensive reviews of eight well-known prokaryotic inclusions.
Download or read book Bacillus thuringiensis written by Matthew Metz and published by CRC Press. This book was released on 2003-11-24 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Make the right decisions when it comes to pest control in agriculture! Bacillus thuringiensis: A Cornerstone of Modern Agriculture explores the impact that one of the most prominent biologically based pesticides has had on pest control technology—and the issues that surround its use. The book examines the development, use, and management of technologies derived from Bacillus thuringiensis (Bt), addressing the health, economic, environmental, and social concerns generated by the deployment of genetically engineered crops. Authors representing a diverse cross section of the international scientific community contribute review articles and research findings that address the use of Bt in microbial formulations and transgenic crops, technological advances in the genetic engineering of plants, advances in methodologies, and improved agricultural practices and productivity through the use of Bt cotton. Bacillus thuringiensis: A Cornerstone of Modern Agriculture examines the vital issues surrounding this Gram-positive bacterium. Contributors from academia, government, and industry address the safety of Bt for human consumption, its effects on non-target organisms, the role of microbial Bt products in crop production in the United States, and the utility and management of transgenic plants. The book also explores: engineering Bt transgenic rice for insect pest protection the Bt potato in developing countries Bt expression in sugarcane and cauliflower a comparative analysis of Bt cotton in Argentina the ecological impact, gene expression, and current resistance management requirements of Bt cotton in the United States and much more! Bacillus thuringiensis: A Cornerstone of Modern Agriculture is an essential resource for advanced students and technical specialists working in agriculture, biotechnology, entomology, pest management, and crop sciences. Stakeholders will also find it invaluable in regulatory decision making about genetically engineered crops, pesticide use, and crop protection.
Download or read book Bacillus Thuringiensis Bt written by and published by . This book was released on 1985 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for the Operational Use of Bacillus Thuringiensis Against the Spruce Budworm written by Oswald N. Morris and published by . This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of Microbes for Control and Eradication of Invasive Arthropods written by Ann Hajek and published by Springer Science & Business Media. This book was released on 2008-10-21 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a diverse presentation about the use of arthropod-specific pathogens for control and eradication of invasive arthropod species. Basic concepts supporting use of pathogens for microbial control are covered as well as societal and environmental concerns.
Download or read book Entomopathogenic Bacteria from Laboratory to Field Application written by J.F. Charles and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Entomopathogenic bacteria (Bacillus thuringiensis and B. sphaericus) are increasingly used as biopesticides to control larval insect populations which are either agricultural or forestry pests and to reduce those which as adults are vectors of severe human diseases. This new book, the first since 1993 to address all aspects of entomopathogenic bacteria, provides undergraduate and graduate students as well as research scientists with a complete, modern view of this important group of bacteria. The authors, chosen for their sustained contributions to the field, cover both fundamental and applied research in this area. The main topics include bacterial ecology and taxonomy, toxin diversity, activity and mode of action, regulation and environment of the genes, safety and ecotoxicology, production and field application of the bacteria, and outbreaks of resistant populations. The book concludes with the most recent data obtained on transgenic biotechnology and addresses environmental impact issues.
Download or read book Evaluation of Three Application Rates of Bacillus Thuringiensis written by and published by . This book was released on 1993 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bacillus Thuringiensis An Environmental Biopesticide written by Philip F. Entwistle and published by . This book was released on 1993-05-24 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The challenge of bacillus thuringiensis. Historiacal overview: from discovery until 1980s. The 1980s: a decade of change. The future challenge. Diversity of bacillus thuringiensis toxins and genes. Diversity of B. thuringiensis strains and toxins. Localization and molecular organization of the toxin genes. The crystal protein genes and products. Regulation of crystal synthesis. Domain-function studies of bacillus thuringiensis crystal proteins: a genetic approach. Mode of action structural features of crystal proteins. Crystal protein mutants. Crystal protein hybrids. Transgenic bacteria, viruses, algae and other microorganisms as bacillus thuringiensis toxin delivery systems. Conventional B. thuringiensis products: do they nedd to be improved?. The use of transgenic microorganisms to improve insect host range. Improving foliar acticity and delivery. Improving aquatic activity and delivery. Improving soil activity and delivery. Issues in the development of transgenic microorganisms. The engineering of plants to express bacillus thuringiensis -endotoxins. Expression of -endotoxins in dicotyledons. Expression of -endotoxins in monocotyledons. Quantification of -endotoxins expression in planta. Enhancement of -endotoxin expression in planta. Endophyte expression of -endotoxin genes in plants. Control of lepidopteran pests with bacillus thuringiensis. Conventional and genetically engineered b. thuringiensis. Products. Microbial specificity of b. thuringiensis in lepidopteran pests. Entomological aspects of lepidopteran pest control with B. thuringiensis. Integration of B. thuringiensis in lepidopteran pest control strategies. Use of bacillus thuringiensis israelensis against mosquitoes and blackflies. Properties of B. thuringiensis israelensis. Factors influencing the efficacy of B. thuringiensis israelensis treatments. Organization of mosquito control programmes. Successful control programmes using B. thuringiesis israelensis. Future prospects for the use of B. thuringiensis israelensis. Control of coleopteran pests by bacillus thuringiensis. B. thuringiensis tenebrionis products and their registration. Characterization of B. thuringiensis tenebrionis and other coleopteran-active subspecies. Host range of B. thuringiensis tenebrionis and susceptibility levels of some pest species. The impact of B. thuringiensis tenebrionis on nor-target animals. Control of coleoptera by -exotoxin. Field trials with B. thuringiensis tenebrionis. Future prospects. Bacillus thuringiensis in the environment: ecology and risk assessment. Role in the environment. Risk assessment. Resistance to bacillus thuringiensis and resistance management. Field resistance development to B. thuringiensis. Laboratory selection for resistance. Cross resistance of B. thuringiensis to chemicals and other B. thuringiensis strains. Genetics of resistance. Mechanisms of resistance. Strategies for delaying resistance development. The use of bacillus thuringiensis in developing countries. History and usage of B. thuringiensis in developing nations. Strain survey and selection. Production levels and costs. Inexpensive and local fermentation media. Low technology fermentation procedures. Stability and formulation. Field application. Further development of B. thuringiensis. Future role for B. thuringiensis in developing countries. Production of bacillus thuringiensis insecticides for experimental and commercial uses. Optimization of production methods. Production methods for B. thuringiensis. Quality control.
Download or read book Bacillus Thuringiensis written by Travis R. Glare and published by John Wiley & Sons. This book was released on 2000-10-03 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a definitive source of information on the environmental, non-target and human safety aspects of using the bacterium Bacillus thuringiensis (B.t.) as a biological control agent. B.t. is used worldwide as an effective agent for controlling many species of insect pest, either by crop spraying or genetic engineering of crop plants. Recently questions have been raised due to health concerns over inhalation of the bacterial spores, and fears of gene-swapping. This reference provides a well-balanced comprehensive discussion on the subject.
Download or read book Distribution of Aerially Applied Bacillus Thuringiensis for Controlling Defoliating Insects in a Hardwood Forest written by Bohdan Maksymiuk and published by . This book was released on 1975 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field and Laboratory Investigations of Bacillus Thuringiensis as a Control Agent for Gypsy Moth Porthetria Dispar L written by Franklin B. Lewis and published by . This book was released on 1966 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: S2To explore the possibilities of using Bt as a means to control the gypsy moth, a series of field and laboratory tests were begun in 1961 by the Northeastern Forest Experiment Station at its Forest Insect Laboratory at New Haven, Conn. This paper is a report on the techniques used in those tests.S3.
Download or read book Field Manual of Techniques in Invertebrate Pathology written by Lawrence A. Lacey and published by Springer Science & Business Media. This book was released on 2007-09-27 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt: This field manual is designed to provide background and instruction on a broad spectrum of techniques and their use in the evaluation of entomopathogens in the field. The second edition provides updated information and includes two additional chapters and 12 new contributors. The intended audience includes researchers, graduate students, practitioners of integrated pest management (IPM), regulators and those conducting environmental impact studies of entomopathogens.
