Download or read book Entomopathogenic Nematodes Systematics Phylogeny and Bacterial Symbionts written by Khuong Nguyen and published by BRILL. This book was released on 2007-09-30 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Advances in Entomopathogenic Nematode Taxonomy and Phylogeny written by and published by BRILL. This book was released on 2016-10-18 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Advances in Entomopathogenic Nematode Taxonomy and Phylogeny the numerous species of Steinernema and Heterorhabditis described since the previous volume, published in 2007, are evaluated and discussed. Valid species proposed from 2007-2015 are covered in detail, each taxon having an illustrated diagnostic description and additional data on molecular characterisation, distribution and biology, etc. An addendum gives brief details of species proposed during 2016. An overview of the taxonomy of the two families provides an up-to-date list of species for both genera, including new synonyms and detailed commentary on specific status where appropriate. Tabular keys to all valid species of Steinernema and Heterorhabditis assist in diagnostics. A chapter on phylogeny and phylogeography completes the book.
Download or read book Utilization of Phylogenetic Systematics Molecular Evolution and Comparative Transcriptomics to Address Aspects of Nematode and Bacterial Evolution written by Scott M. Peat and published by . This book was released on 2010 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Both insect parasitic/entomopathogenic nematodes and plant parasitic nematodes are of great economic importance. Insect parasitic/entomopathogenic nematodes provide an environmentally safe and effective method to control numerous insect pests worldwide. Alternatively, plant parasitic nematodes cause billions of dollars in crop loss worldwide. Because of these impacts, it is important to understand how these nematodes evolve, and, in the case of entomopathogenic nematodes, how their bacterial symbionts evolve. This dissertation contains six chapters. Chapter one is a review of DNA markers and their use in the phylogenetic systematics of entomopathogenetic and insect-parasitic nematodes as well as a review of phylogenetic, co-phylogenetic and population genetic methodologies. Chapter two characterizes positive destabilizing selection on the luxA gene of bioluminescent bacteria. Our data suggests that bacterial ecology and environmental osmolarity are likely driving the evolution of the luxA gene in bioluminescent bacteria. Chapter 3 examines relationships among bacteria within the genus Photorhabdus. Our analyses produced the most robust phylogenetic hypothesis to date for the genus Photorhabdus. Additionally, we show that glnA is particularly useful in resolving specific and intra-specific relationships poorly resolved in other studies. We conclude that P. asymbiotica is the sister group to P. luminescens and that the new strains HIT and JUN should be given a new group designation within P. asymbiotica. Chapter 4 characterizes the morphology of the head and feeding apparatus of fungal feeding and insect infective female morphs of the nematode Deladenus siricidicola using scanning electron microscopy. Results showed dramatic differences in head, face, and stylet morphology between the two D. siricidicola female morphs that were not detected in previous studies using only light microscopy. Chapter five utilizes comparative transciptomics to identify putative plant and insect parasitism genes in the nematode Deladenus siricidicola. Results from this study provide the first transcriptomic characterization for the nematode Deladenus siricidicola and for an insect parasitic member of the nematode infraorder Tylenchomorpha. Additionally, numerous plant parasitism gene homologues were discovered in both D. siricidicola libraries suggesting that this nematode has co-opted these plant parasitism genes for other functions. Chapter six utilizes a phylogenomic approach to estimate the phylogeny of the nematode infraorder Tylenchomorpha.
Download or read book Entomopathogenic Nematodes and Their Symbiotic Bacteria written by S. Sivaramakrishnan and published by Springer. This book was released on 2022-05-07 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Discovery Identification and Molecular Phylogeny of Entomopathogenic Nematodes and Their Symbiotic Bacteria written by Patchareewan Maneesakorn and published by . This book was released on 2010 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Entomopathogenic Nematology written by Randy Gaugler and published by CABI. This book was released on 2002-01-31 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Entomopathogenic Nematodes in Biological Control written by Randy Gaugler and published by CRC Press. This book was released on 2018-01-18 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Studies on the Pesticidal Potential of Entomopathogenic Nematodes Their Bacterial Symbionts and the Toxins They Produce written by Ali Murad Rahoo and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Evolutionary History of Nematodes written by George O. Poinar Jr. and published by BRILL. This book was released on 2011-03-05 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nematodes are one of the most abundant groups of invertebrates on the face of the earth. Their numbers are estimated to range from 1000 per cm2 in the sand-covered hydrogen sulphide ‘black zone’ beneath the ocean floors to 1.2 billion in a single hectare of soil. Estimates for their species diversity range from 100 000 to 10 million. The past history of nematodes is a mystery, since very few fossils have been discovered. This book establishes a solid base in palaeonematology with descriptions of 66 new fossil species and accounts of all previous fossil and subfossil nematodes from sedimentary deposits, coprolites, amber and mummies. It shows how nematode fossils can be used to establish lineages at various locations and time periods in the earth’s history and when nematodes entered into symbiotic and parasitic associations with plants and animals.
Download or read book Entomopathogenic Nematodes and Their Bacterial Symbionts from Pakistan written by F. Shahina and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bio-control is a major tactic in the integrated pest management system. Entomopathogenic nematodes have been recognized as one of the potential and most effective biocontrol agent for the control of major insect pest which cause serious damage to food and fiber crops of agricultural importance for the control of insect pest in agricultural crops like cotton and fruit trees, a wide range of chemical pesticides have been indiscriminately used since many decades. The long lasting impact of the chemical on the non target organism, development of insect resistance to chemical pesticides and its hazardous effects on the human and the environment, stimulated the interest of the scientist for an alternate control measure through the biocontrol means for destroying the insect pests as to increase the agricultural productivity. Among the insect pathogens entomopathogenic nematodes have been considered as exceptionally effective biocontrol agents having non polluting properties.
Download or read book Techniques for Work with Plant and Soil Nematodes written by Roland N. Perry and published by CABI. This book was released on 2020-11-26 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant-parasitic and free-living nematodes are increasingly important in relation to food security, quarantine measures, ecology (including pollution studies), and research on host-parasite interactions. Being mostly microscopic, nematodes are challenging organisms for research. Techniques for Work with Plant and Soil Nematodes introduces the basic techniques for laboratory and field work with plant-parasitic and free-living soil-dwelling nematodes. Written by an international team of experts, this book is extensively illustrated, and addresses both fundamental traditional techniques and new methodologies. The book covers areas that have become more widespread over recent years, such as techniques used in diagnostic laboratories, including computerized methods to count and identify nematodes. Information on physiological assays, electron microscopy techniques and basic information on current molecular methodologies and their various applications is also included.
Download or read book Next Generation Systematics written by Peter D. Olson and published by Cambridge University Press. This book was released on 2016-06-16 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cheap and plentiful genome sequence data is transforming biology, and will surely transform systematics. This volume explores how.
Download or read book Systematics of Cyst Nematodes Nematoda Heteroderinae Part A written by Sergei A. Subbotin and published by BRILL. This book was released on 2010-08-23 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 8 in the series, appearing in two parts, A and B, deals with the systematics of cyst nematodes of the subfamily Heteroderinae. Cyst nematodes are important pathogens causing extensive damage and significant yield loss to many crops in both temperate and tropical regions. Part A presents summarised information on various aspects of morphology, biology, ecology, pathology, biogeography, control measures and diagnostics of these nematodes. Molecular diagnostic tables and comprehensive tabular and dichotomous keys for species identification, together with descriptions of protocols for extraction, light and electron microscopy studies, and molecular diagnostics are also included. The taxonomic section of part A provides diagnoses for six genera, viz., Globodera, Punctodera, Cactodera, Dolichodera, Betulodera and Paradolichodera, and includes descriptions and morphometrics of 30 valid species. The work is illustrated by 101 drawings and photos. The genus Heterodera is mainly covered in part B, complete descriptions and morphometrics of the 80 known valid species being provided and the species illustrated by 159 line drawings and photos. Identification of the species using morphological and molecular techniques is also covered. Each part includes an extensive bibliography.
Download or read book Advances in Animal Experimentation and Modeling written by Ranbir Chander Sobti and published by Academic Press. This book was released on 2021-12-08 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploration in Laboratory Animal Sciences Understanding Life Phenomena updates our knowledge about the newer technologies such as molecular biology, genomics including sequencing, proteomics, transcriptomics, cell culture, stem cell culture, transgenesis and their translation to understand systematics and phylogeny of laboratory animals at molecular level. In seven sections Exploration in Laboratory Animal Sciences Understanding Life Phenomena resolves issues of conservation, applications in environment monitoring, production of drugs and others. Comparative research has enabled use of domestic animal models that translate the advances in basic biosciences to the schemes for human welfare including medicine. Molecular geneticists are unravelling the complexities of mammalian genes and the field of biotechnology is maturing at a fast pace. Additionally, research focused on immunology and animal behavior offer new insight into ways of enhancing animal welfare. The rise in consumption of animal proteins in addition to the challenges of sustaining our natural resources has given animal scientists a vast array of opportunities to engage in integrative systems-based research for meeting the challenges that behold us. Exploration in Laboratory Animal Sciences Understanding Life Phenomena also discusses the manipulation of animals as factories for the production of safe foods, drugs, and sensors and others to meet the contemporary challenges faced by mankind in the new world order created by pandemic of Covid 19. It also includes several chapters on the causation and management of certain diseases and impact of microbes on life. - Provides insight to newer and futuristic technologies to understand disease process and drug design by animal models - Addresses a wide variety of species and covers a wide variety of topics (such as animal species, the laboratory setting, regulatory guidelines, and ethical considerations) to fully prepare for work with all types of animals - Gives a perspective on laboratory animal use that allows to explain the benefits of animal use as required by veterinary technology program accreditation procedure - Includes examples of animal bio-technological techniques (including stem cell and tissue engineering) for their applications to humanity - Offers new insight into ways of enhancing animal welfare by the inclusion of research results focused on immunology and laboratory animal behavior
Download or read book COST 819 written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Parasite Diversity and Diversification written by Serge Morand and published by Cambridge University Press. This book was released on 2015-02-26 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: By joining phylogenetics and evolutionary ecology, this book explores the patterns of parasite diversity while revealing diversification processes.
Download or read book Thermal Adaptation in Xenorhabdus Spp Bacterial Symbionts of Entomopathogenic Nematodes Steinernema Spp written by Hongjun He and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
