Pathogen And Microbial Contamination Management In Micropropagation

This book is based mainly on invited and offered papers presented at the Second International Symposium on Bacterial and Bacteria-like Contaminants of Plant Tissue Cultures held at University College, Cork, Ireland in September 1996, with additional invited papers. The First International Symposium on Bacterial and Bacteria-like Contaminants of Plant Tissue Cultures was held at the same venue in 1987 and was published as Acta Horticulturae volume 225, 1988. In the intervening years there have been considerable advances in both plant disease diagnostics and in the development of structured approaches to the management of disease and microbial contamination in micropropagation. These approaches have centred on attempts to separate, spatially, the problems of disease transmission and laboratory contamination. Disease-control is best achieved by establishing pathogen-free cultures while laboratory contamination is based on subsequent good working practice. Control of losses due to pathogens and microbial contamination in vitro addresses, arguably, the most importance causes of losses in the industry; nevertheless, losses at and post establishment can also be considerable due to poor quality microplants or micro-shoots. In this symposium, a holistic approach to pathogen and microbial contamination control is evident with the recognition that micropropagators must address pathogen and microbial contamination in vitro, and diseases and microplant failure at establishment. There is increasing interest in establishing beneficial bacterial and mycorrhizal association with microplants in vitro and in vivo.

Contamination in Tissue Culture covers the sources, prevention, detection, and elimination of contamination in tissue culture. Composed of 12 chapters, the book describes the frequency of occurrence of contamination and the many different effects of contamination on cultured cells. After introducing the intraspecies contamination of cell cultures, the book explains a specific type of contamination, such as bacterial, fungal, viral, and parasitic contamination. A chapter in this book describes the reversible and irreversible alterations of cultured FL human amnion cells after experimental mycoplasmal infection. Chapters 9 and 10 examine the occurrence of tissue culture contaminants by electron microscopy and procedures for isolating and identifying viral contaminants. The concluding chapter covers sterility tests of media and solutions for tissue culture and the use of antibiotics. It also summarizes the major developments made as well as future challenges in the field. This book will be helpful to investigators, teachers, students, and technicians within the many disciplines of cell biology, physiology, cytology, virology, immunology, genetics, oncology, molecular biology, biochemistry, and biophysics, in which tissue and cell cultures are used, either as the primary object of research or as tools.

Plant conservation is increasingly recognised as an outstanding global priority, yet despite considerable efforts over the last few decades, the number of threatened species continues to rise. The practice of plant conservation has for too long been a rather hit-or-miss mixture of methods. While microorganisms have been recognised as a crucial and essential element in supporting the lifecycles of plant species, there has been limited recognition of the relationships between macro level conservation facilitating ecosystem functioning at the micro level. This book addresses the role of microorganisms in conservation - both their support functions and deleterious roles in ecosystem processes and species survival. Importantly, a number of authors highlight how microbial diversity is, itself, now under threat from the many and pervasive influences of man. What is clear from this volume is that like many contemporary treatments of plant and animal conservation, the solution to mitigate the erosion of biodiversity is not simple. This book represents an attempt to bring to the fore the ecological underwriting provided by microorganisms.

Alternating between topic discussions and hands-on laboratory experiments that range from the in vitro flowering of roses to tissue culture of ferns, Plant Tissue Culture Concepts and Laboratory Exercises, Second Edition, addresses the most current principles and methods in plant tissue culture research. The editors use the expertise of some of the top researchers and educators in plant biotechnology to furnish students, instructors and researchers with a broad consideration of the field. Divided into eight major parts, the text covers everything from the history of plant tissue culture and basic methods to propagation techniques, crop improvement procedures, specialized applications and nutrition of callus cultures. New topic discussions and laboratory exercises in the Second Edition include ""Micropropagation of Dieffenbachia,"" ""Micropropagation and in vitro flowering of rose,"" ""Propagation from nonmeristematic tissue-organogenesis,"" ""Variation in culture"" and ""Tissue culture of ferns.""It is the book's extensive laboratory exercises that provide a hands-on approach in illustrating various topics of discussion, featuring step-by-step procedures, anticipated results, and a list of materials needed. What's more, editors Trigiano and Gray go beyond mere basic principles of plant tissue culture by including chapters on genetic transformation techniques, and photographic methods and statistical analysis of data. In all, Plant Tissue Culture Concepts and Laboratory Exercises, Second Edition, is a veritable harvest of information for the continued study and research in plant tissue culture science.

Under the vast umbrella of Plant Sciences resides a plethora of highly specialized fields. Botanists, agronomists, horticulturists, geneticists, and physiologists each employ a different approach to the study of plants and each for a different end goal. Yet all will find themselves in the laboratory engaging in what can broadly be termed biotechnol

This is the first book dedicated to the interactions of non-mycorrhizal microbial endophytes with plant roots. The phenotypes of these interactions can be extremely plastic, depending on environmental factors, nutritional status, genetic disposition and developmental stages of the two partners. This book explores diversity, life history strategies, interactions, applications in agriculture and forestry, methods for isolation, cultivation, and both conventional and molecular methods for identification and detection of these endophytes.

This 2-day workshop is the culmination of a study of the status and future of marine biotechnology. The overall goal of this workshop is to examine what was initially called "Opportunities for Marine Biotechnology in the United States," to consider where we are now in this field of "Environmental Marine Biotechnology," to envision the field in the future, and to discuss any impediments that might be encountered along the way. Opportunities for Environmental Applications of Marine Biotechnology: Proceedings of the October 5-6, 1999, Workshop addresses the question of where the federal government should invest its limited funds and what future initiatives should be planned.

Microbial Endophytes: Prospects for Sustainable Agriculture discusses the practical and theoretical aspects regarding the use of endophytic microorganisms in agriculture, providing insights on the biotechnological applications associated with long-term crop production. Chapters deal with the various aspects of endophytic microorganisms, including isolation, enumeration, characterization procedures, diversity analysis, and their role as biofertilizer, biocontrol agent and microbial inoculants. Framed to discuss the present and future potential of microbial endophytes in biotic and abiotic stress management, bioremediation, bioactive compounds production, and in nanotechnology, this book provides a single-volume resource that will be valuable to academics and researchers interested in microbiology, agricultural sciences and biotechnology. Explores aspects of sustainable agriculture by using endophytic microorganism such as bacteria, fungi and actinobacteria Presents insights into the use of endophytes as biofertilizer and biocontrol agents in sustainable agriculture Relates endophyte organisms and nano-technology