Entomopathogenic Nematodes And Their Symbiotic Bacteria
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| Author | : S. Sivaramakrishnan |
| Publisher | : Springer |
| Total Pages | : 176 |
| Release | : 2022-05-07 |
| Genre | : Science |
| ISBN | : 9781071614471 |
This book provides basic information and different protocols associated with the Entomopathogenic nematodes (EPNs) and their symbiotic bacteria. Entomopathogenic nematodes (EPNs) of the genera Steinernema and Heterorhabditis and their associated bacterial symbionts Xenorhabdus and Photorhabdus aid nematode infective juveniles (IJs) in infecting and killing their insect hosts, creating a unique tripartite complex of host-vector-symbiont interactions. Due to this insect killing capability, EPNs are used as biological control agents of economically important insect pests. They are also a model system to study host-parasite interactions. It provides a systematic approach to various nematode procedures including pathogenicity, reproduction, foraging behaviour. It gives a brief outline on historical aspects, nematode-bacterium complex, biology and chemical ecology of EPNs. It concisely describes host insect rearing, nematode sampling and storage, isolation techniques, counting, handling and staining of nematodes, characterization including morphological, molecular and ecological studies, mass production, virulence bioassay, field application and efficacy. The book also includes methods and techniques for their associated symbiotic bacteria. This book serves as a laboratory manual and assists the readers to undertake advanced research in different aspects related to nematodes. It is useful for researchers in the fields of nematology, microbiology, bacteriology and entomology.
| Author | : Khuong Nguyen |
| Publisher | : BRILL |
| Total Pages | : 832 |
| Release | : 2007-09-30 |
| Genre | : Science |
| ISBN | : 9047422392 |
The volume deals with morphology, taxonomy and systematics of entomopathogenic nematodes (EPN) in the families Steinernematidae and Heterorhabditidae and bacteria associated with these nematodes. In the first part, history, taxonomic status, family and genus definitions of EPN are mentioned. In the second part, all useful aspects of morphology and methodology of EPN are mentioned with illustrations and SEM photographs and instructions on how to make the measurements, and how to use them in taxonomic work. A polychotomous key with SEM photographs and illustrations is provided. In the third part, full descriptions of all species are presented with latest information about each species. In the fourth part, molecular and phylogenetic methods for working with EPN are presented, including the latest information and instructions on how to use molecular data in taxonomic work. In the last part, bacteria associated with this group of nematodes are discussed in the context of the latest information about methodology, biology and taxon.
| Author | : Patchareewan Maneesakorn |
| Publisher | : |
| Total Pages | : 250 |
| Release | : 2010 |
| Genre | : Nematodes |
| ISBN | : |
| Author | : Victoria Alicia Miranda |
| Publisher | : |
| Total Pages | : 134 |
| Release | : 2010 |
| Genre | : |
| ISBN | : |
This study investigated a system comprised of entomopathogenic nematodes (EPN) (Steinernematidae and Heterorhabditidae), their symbiotic bacteria (Xenorhabdus, Photorhabdus) and an insect host, M. sexta. The focus of this investigation was to examine the effects insect host condition on the nematode-bacterium mutualistic partnership as a whole. The EPN used in the study had varying host-searching strategies: an ambusher, Steinernema carpocapsae, and a cruiser, Heterorhabditis sonorensis. Insect host age and diet were evaluated as factors that affect insect host condition. Wandering 5th instar M. sexta were much less susceptible to EPN infection compared to non-wandering 5th instar larvae, regardless of EPN species. Insect host diet had a significant impact on H. sonorensis susceptibility to EPN infection, and a non-significant trend was observed for S. carpocapsae. EPN and bacterial symbiont fitness were unaffected by insect host condition. This is the first record of the effect of insect host condition on both EPN and their symbiotic bacteria.
| Author | : Raquel Campos-Herrera |
| Publisher | : Springer |
| Total Pages | : 532 |
| Release | : 2015-08-11 |
| Genre | : Technology & Engineering |
| ISBN | : 3319182668 |
Achieving a sustainable agriculture requires integrating advances in multiples disciplines, covering both fundamental and applied research in a common objective: enhancing crop health for better productions. This first volume of the Series “Sustainability in plant and crop protection” presents a comprehensive and multi-disciplinary compendium about the recent achievements in the use of entomopathogenic nematodes (EPNs) as biological control in a global scale. The volume is organized in a first section discussing the last discoveries on the biology and ecology of the EPN, a second section covering the advances on the EPN productions and release, and a third section with multiples case-studies in which the concepts and ideas on the two previous sections are integrated and discussed. An essential tool for researchers and professionals working to advance in the sustainable use of our resources.
| Author | : Abdulrahman Abdullah Khalfan Al-Siyabi |
| Publisher | : |
| Total Pages | : |
| Release | : 2006 |
| Genre | : Enterobacteriaceae |
| ISBN | : |
| Author | : Randy Gaugler |
| Publisher | : CRC Press |
| Total Pages | : 415 |
| Release | : 2018-01-18 |
| Genre | : Science |
| ISBN | : 1351088645 |
The editors of this book, who are world renown for their creativity with entomopathogenic nematodes, have assembled the foremost authorities from four continents to contribute on basic and applied concepts. The authors have taken advantage of this opportunity to express their views to a wide scientific audience. They have combined their international experience so that the latest developments in this fascinating and rapidly expanding field are present in comprehensive manner with diverse topics ranging from biological control theory to organismal and molecular biology.
| Author | : Randy Gaugler |
| Publisher | : CABI |
| Total Pages | : 410 |
| Release | : 2002-01-31 |
| Genre | : Science |
| ISBN | : 9780851997919 |
Nematodes that are parasites of insects are no longer a laboratory curiosity. They have begun to be accepted as environmentally benign alternatives to the use of chemical insecticides, for the control of insect pests. Nematode worms are now applied as biological control agents against insectpests of numerous horticultural and agricultural crops. This book provides a comprehensive review of entomopathogenic nematology. It begins by reviewing fundamental biology and setting a taxonomic foundation for nematodes and their bacterial symbionts. Several chapters are devoted to functionalprocesses involved in parasitism and to nematode ecology. Later chapters describe technological advances and control methodologies.
| Author | : Mahfouz M M Abd-Elgawad |
| Publisher | : CABI |
| Total Pages | : 664 |
| Release | : 2017-07-12 |
| Genre | : Technology & Engineering |
| ISBN | : 1786390000 |
This book describes entomopathogenic and slug parasitic nematodes as potential biocontrol agents in crop insect and slug pest management. Addressing research on these two nematodes from tropical, subtropical and temperate countries, it covers the new techniques and major developments regarding mass production, formulation, application, commercialization and safety measures. Plans for future strategies to make these beneficial nematodes cost-effective and expand their use by including them in integrated pest management programmes in different agro-ecosystems are also discussed. Biocontrol Agents: Entomopathogenic and Slug Parasitic Nematodes provides a comprehensive review of the topic and is an essential resource for researchers, industry practitioners and advanced students in the fields of biological control and integrated pest management.
| Author | : Ann E. Hajek |
| Publisher | : John Wiley & Sons |
| Total Pages | : 742 |
| Release | : 2017-10-27 |
| Genre | : Science |
| ISBN | : 1119256062 |
A rapidly growing interdisciplinary field, disease ecology merges key ideas from ecology, medicine, genetics, immunology, and epidemiology to study how hosts and pathogens interact in populations, communities, and entire ecosystems. Bringing together contributions from leading international experts on the ecology of diseases among invertebrate species, this book provides a comprehensive assessment of the current state of the field. Beginning with an introductory overview of general principles and methodologies, the book continues with in-depth discussions of a range of critical issues concerning invertebrate disease epidemiology, molecular biology, vectors, and pathogens. Topics covered in detail include: Methods for studying the ecology of invertebrate diseases and pathogens Invertebrate pathogen ecology and the ecology of pathogen groups Applied ecology of invertebrate pathogens Leveraging the ecology of invertebrate pathogens in microbial control Prevention and management of infectious diseases of aquatic invertebrates Ecology of Invertebrate Diseases is a necessary and long overdue addition to the world literature on this vitally important subject. This volume belongs on the reference shelves of all those involved in the environmental sciences, genetics, microbiology, marine biology, immunology, epidemiology, fisheries and wildlife science, and related disciplines.
