This manual reflects practical approaches to handling bacteria in the labora- tory. It is designed to recall historical methods of bacterial genetics that have had recent developments and to present new techniques that allow full genome analysis. It has been written for microbiologists who need to group their protocols at the state of the art of a new millennium and also for scientists in other fields of life sciences who need to use bacteria for their research. Teachers, graduate students, and postdocs also will benefit from having these protocols to help them understand modern bacterial genetics. I learned so much from these contributions from my colleagues that I have no doubt about the daily usefulness of this book. April 2002 Michel Blot XII Abbreviations Acyl-HSL N-acyl homoserine lactone moi multiplicity of infection Amp or Ap ampicillin N amino C carboxy NMR nuclear magnetic resonance CIO-HSL N-decanoyl-L-homoserine lactone 3-0H-C14:1-HSL N-(3-hydroxy-7 -cis-tetra- C12-HSL N-dodecanoyl-L-homoserine lac- decanoyl)homo-serine lactone tone 3-0H-C4-HSL N-3-hydroxybutanoyl-L- C14-HSL N-tetradecanoyl-L-homoserine homoserine lactone lactone ONPG o-nitrophenyl ~-D-galactopyranoside C4-HSL N-butanoyl-L-homoserine lactone ORF open reading frame C6-HSL N-hexanoyl-L-homoserine lactone OTG I-S-octyl-~-D-thioglucoside C8-HSL N-octanoyl-L-homoserine lactone 3-oxo-CIO-HSL N-3-oxodecanoyl-L-homo- Cam or Cm chloramphenicol serine lactone CBD chitin binding domain 3-oxo-C12-HSL N-3-oxododecanoyl-L- CHEF contour clamped homogenous electric homoserine lactone field 3-oxo-C14-HSL N-3-oxotetradecanoyl-L- CI consistency index homoserine lactone CRIM conditional-replication, integration, 3-oxo-C4-HSL N-3-oxobutanoyl-L-homoser- and modular ine lactone dCTP deoxycytidine triphosphate 3-oxo-C6-HSL N-3 -oxohexanoyl-L-homoser- deg.

Cyanobacteria make a major contribution to world photosynthesis and nitrogen fixation, but are also notorious for causing nuisances such as dense and often toxic blooms' in lakes and the ocean. The Ecology of Cyanobacteria: Their Diversity in Time and Space is the first book to focus solely on ecological aspects of these organisms. Its twenty-two chapters are written by some thirty authors, who are leading experts in their particular subject. The book begins with an overview of the cyanobacteria - or blue-green algae, for those who are not specialists - then looks at their diversity in the geological record and goes on to describe their ecology in present environments where they play important roles. Why is one of the key groups of organisms in the Precambrian still one of the most important groups of phototrophs today? The importance of ecological information for rational management and exploitation of these organisms for commercial and other practical purposes is also assessed. Accounts are provided of nuisances as well as the ecology of the commercially successful Spirulina and the role of cyanobacteria in ecosystem recovery from oil pollution. Many chapters include aspects of physiology, biochemistry, geochemistry and molecular biology where these help general understanding of the subject. In addition there are three chapters dealing specifically with molecular ecology. Thirty-two pages of colour photos incorporate about seventy views and light micrographs. These features make the book valuable to a wide readership, including biologists, microbiologists, geologists, water managers and environmental consultants. The book complements the highly successful The Molecular Biology of Cyanobacteria already published by Kluwer.

Creating bacteria with modified genetic properties allows the specific investigation of these microorganisms. Electrotransformation is a highly efficient and easy to apply technique to introduce genetic material into bacterial cells. A strong electric field is used for this purpose.
In the present manual, protocols for the transformation of about 40 strains of bacteria are described. Emphasis is placed on the individual critical procedural steps, since the practical details mainly depend on the bacterial strain under investigation. This presentation together with the theoretical introductionary chapters, allows the user to modify and adapt each protocol to his/her own experiments. Bacterial strains with relevance in the food industry, biotechnology, medical and veterinary fields, agroindustry and environmental sciences are covered.

Detailed information dealing with the ecology of mycobacteria is derived from a variety of different scientific fields such as botany, biochemistry, genetics, immunology, microbiology and epidemiology. This is the first attempt to evaluate this information from an ecological point of view and to develop a strategy for the prevention of tuberculosis and other mycobacterioses based on the ecological behavior of mycobacteria, especially the potentially pathogenic species capable of either growth in the environment or provoking disease. Regarding the interests of the developing countries, special attention is paid to the ecology of Mycobacterium leprae and to the supporting effect of accompanying mycobacteria in its pathogenicity. On a more positive side, environmental mycobacteria play an important role in the ecology of moorland dragonflies. Such a book is needed for specialists working in the field of mycobacterial research, clinical laboratories, the public health service, food hygiene, the water industry and in general ecology.

This book contains the Proceedings of the Ninth International Symposium on Pho- totrophic Prokaryotes (IXth ISPP) which was held in Vienna, Austria, from September 6-12,1997. In 1973, the far-sighted efforts of Gerhart Drews, Roger Y. Stanier, and Nor- bert Pfennig launched the first ISPP as a joint forum for scientific discussion of all aspects of research on phototrophic prokaryotes, both anoxygenic and oxygenic (cyanobacteria or blue-green algae). The ISPP International Scientific Committee, a rather loose community of scientists (see page vii for a list of current members), has since been responsible for the organization of the ISPPs on a triennial basis, without any dedicated financial support from a society, membership fees, or similar. The success of the ISPPs is therefore due to the continued enthusiasm of the scientific community for such a forum, as exemplified by the rise in attendance from 79 (1 st ISPP) to more than 400 active scientists (plus depen- dants) from all five continents in Vienna. Comparing the Book of Abstracts of 1973 with that of 1997 reflects the tremendous change that has occurred in the last 25 years in scien- tific research on phototrophic prokaryotes. Two noteworthy examples of such change are the significant shift in emphasis from anoxyphototrophs to cyanobacteria and the advent of molecular genetics, culminating at the 9th ISPP in the first complete genomic DNA se- quence of a phototrophic prokaryote, viz. the cyanobacterium Synechocystis sp. PCC6803.

"Explains why a significant body of scientific research has been largely ignored by cancer research institutions. Hess has clearly demonstrated the valuable role that social scientists can have in offering a neutral perspective on medical research and how it is shaped by cultural bias."
--"Townsend Letter"

"Hess has made a careful study of one of the most intriguing themes that weaves through the recent history of unconventional approaches to cancer. Every researcher, physician, and general reader interested in this field should welcome this important and incisive contribution."
--"Michael Lerner
President, Commonweal, and author of "Choices in Healing"

Growing numbers of cancer patients are exploring diet, food supplements, herbs, and nontoxic immunotherapies like bacterial vaccines as a means of therapy. Yet most cancer research organizations refuse to even evaluate these alternatives. "Can Bacteria Cause Cancer?" argues convincingly that unless this neglected world of alternative therapies is properly scrutinized, the medical Vietnam of the twentieth century may well affect one in two people by the twenty-first century.

David J. Hess investigates one of the great medical mysteries of the twentieth century--the relationship between bacteria and chronic disease. Recently scientists have overturned long-held beliefs by demonstrating that bacterial infections cause many ulcers; they are now reconsidering the role of bacterial infections in other chronic diseases, such as arthritis. Is it possible, Hess asks, that bacteria can contribute to the many other known causes of cancer?

To answer this intriguing question, Hess takes us into the world of alternative cancerresearchers. Maintaining that their work has been actively suppressed rather than simply dismissed, he examines their claims---that bacterial vaccines have led to some dramatic cases of long-term cancer remission--and the scientific potential of their theories. Economic interests and cultural values, he demonstrates, have influenced the rush toward radiation and chemotherapy and the current cul-de-sac of toxic treatments.

More than a medical mystery story, "Can Bacteria Cause Cancer?" is a dramatic case study of the failure of the war on cancer.

Since the discovery of circadian rhythms in cyanobacteria in the late 1980s, the field has exploded with new information. The cyanobacterial model system for studying circadian rhythms, "Synechococcus elongatus," has allowed a detailed genetic dissection of the bacterial clock due to the methods currently available in molecular, structural, and evolutionary biology.

This book addresses multiple aspects of bacterial circadian programs: the history and background of the cyanobacteria and circadian rhythms in microorganisms, the molecular basis, structure, and evolution of the circadian clock, entrainment of the oscillator with the environment and the control of downstream processes by the clock, the demonstration of adaptive significance and the prokaryotic clock s remarkable stability, and mathematical and synthetic oscillator models for clock function.

Experts in the field provide a timely and comprehensive review and a stepping-stone for future work on this amazing group of microorganisms and timing."

Bacterial plasmids originating in a wide range of genera are being studied from a variety of perspectives in hundreds of laboratories around the globe. These elements are well known for carrying "special" genes that confer important survival properties, frequently neces sary under atypical conditions. Classic examples of plasmid-borne genes are those provid ing bacterial resistance to toxic substances such as antibiotics, metal ions, and bacte riophage. Often included are those determining bacteriocins, which may give the bacterium an advantage in a highly competitive environment. Genes offering metabolic alternatives to the cell under nutritionally stressed conditions are also commonly found on plasmids, as are determinants important to colonization and pathogenesis. It is likely that in many, if not most, cases plasmids and their passenger determinants represent DNA acquired recently by their bacterial hosts, and it is the characteristic mobility of these elements that enables their efficient establishment in new bacterial cells by the process known as conjugation. Whereas many plasmids are fully capable of promoting their own conjugal transfer, others move only with help from coresident elements. The ability of a plasmid to establish itself in a variety of different species is com mon, and recent studies have shown that transfer can in some cases occur from bacterial cells to eukaryotes such as yeast."

A special meeting of the Royal Society in London in 1986 marked the centenary of the first demonstration of nitrogen fixation. Currently the subject is of great practical importance because the use of nitrogenous fertilizers has resulted in unacceptable levels of water pollution; also these fertilizers are becoming steadily less economic both in cash terms and in utilization of fossil fuels for their manufacture. The number of papers published and the frequency of national and international meetings to discuss research into nitrogen fixation have both increased steadily during the 1970s and 1980s. Specialist monographs and review papers are often too detailed to be of real use to undergraduates in biology or related areas such as agriculture and forestry, and even for graduates and research workers newly entering the field of nitrogen fixation. For people in these categories, the senior author wrote The Biology of Nitrogen-fixing Organisms published by McGraw Hill in 1979. This book has similar aims. It incorporates new findings that have not only resolved some of the uncertainties reported in that earlier text hut, more importantly, it reflects the influence on the subject of recent developments in biochemistry, molecular biology, genetic engineering and other biotechnologies. We have devoted more attention to quantitative aspects of the subject, but unfortunately the many practical difficulties for accurate field assessment of nitrogen fixation and its contribution to nitrogen cycles means that many assessments are either in contlict with each other or must be accepted as tentative.

Published nearly ten years ago, the first edition of Practical Atlas for Bacterial Identification broke new ground with the wealth of detail and breadth of information it provided. The second edition is poised to do the same. Differing fundamentally from the first edition, this book begins by introducing the concept of bacteria community intelligence as reflected in corrosion, plugging, and shifts in the quality parameters in the product whether it be water, gas, oil, or even air. It presents a new classification system for bacterial communities based upon their effect and activities, and not their composition. The book represents a radical departure from the classical reductionist identification of bacteria dominated by genetic and biochemical analyses of separated strains. The author takes a holistic approach based on form, function, and habitat of communities (consorms) of bacteria in real environments. He uses factors related to the oxidation-reduction potential at the site where the consorm is active and the viscosity of the bound water within that consorm to position their community structures within a two-dimensional bacteriological positioning system (BPS) that then allows the functional role to be defined. This book has an overarching ability to define bacterial activities as consorms in a very effective and applied manner useful to an applied audience involved in bacterial challenges. Organized for ease of use, the book allows readers to start with the symptom, uncover the bacterial activities, and then indentify the communities distinctly enough to allow management and control practices that minimize the damage. The broad spectrum approach, new to this edition, lumps compatible bacteria together into a relatively harmonious consortia that share a common primary purpose. It gives a big picture view of the role of bacteria not as single strains but collectively as communities and uses this information to provide key answe

During the mid-forties bacteria and phages were dis- covered to be suitable objects for the study of genet- ics. Genetic phenomena such as mutation and recombina- tion, which had already been known in eukaryotes for a long time, were now shown to exist in bacteria and phages as well. New phenomena as lysogeny and trans- duction were discovered, which gained great importance beyond the field of microbial genetics. Bacteria and phages are of small size, multiply rapid- ly, and have chemically defined growth requirements. Many selective procedures can be applied to screen for rarely occurring mutants or recombinants. Therefore, they offered ideal conditions to investigate genetic processes and to interpret them in molecular terms. Many new methods were developed (e. g. CsCl density gradient centrifugation) and old techniques were im- proved and modified for new purposes (e. g. chemical mutagenesis). Hypotheses, such as the semiconservative replication of DNA, mutation by transition and trans- version and operon regulation, have had an extraordi- narily stimulating effect on the research in general genetics. Thus, in the past two decades, from the ge- netics of microbes (including fungi) the field of mo- lecular genetics developed. Many text books compete in presenting the latest knowledge on this subject. But to date there are only a few laboratory manuals which introduce the student of biology to the manifold ex- perimental techniques of microbial and molecular gene- tics. This laboratory manual is an attempt to redress the balance.

Life on earth began with bacteria, which now colonize every corner of the planet. As the ancestors of mitochondria, bacteria are also fundamental for our cells. Most bacteria look alike, but have very different functions. Therefore, knowing the functional profile of bacteria helps understand their impact on our life. This book provides a wealth of information on the functional evolution of bacteria in a novel and coherent way. The book is aimed towards scientists as well as those who are curious about the world of bacteria and their relationships with mitochondria, the powerhouses of our cells, and us.

Published nearly ten years ago, the first edition of Practical Atlas for Bacterial Identification broke new ground with the wealth of detail and breadth of information it provided. The second edition is poised to do the same. Differing fundamentally from the first edition, this book begins by introducing the concept of bacteria community intelligence as reflected in corrosion, plugging, and shifts in the quality parameters in the product whether it be water, gas, oil, or even air. It presents a new classification system for bacterial communities based upon their effect and activities, and not their composition.

The book represents a radical departure from the classical reductionist identification of bacteria dominated by genetic and biochemical analyses of separated strains. The author takes a holistic approach based on form, function, and habitat of communities (consorms) of bacteria in real environments. He uses factors related to the oxidation-reduction potential at the site where the consorm is active and the viscosity of the bound water within that consorm to position their community structures within a two-dimensional bacteriological positioning system (BPS) that then allows the functional role to be defined. This book has an overarching ability to define bacterial activities as consorms in a very effective and applied manner useful to an applied audience involved in bacterial challenges.

Organized for ease of use, the book allows readers to start with the symptom, uncover the bacterial activities, and then indentify the communities distinctly enough to allow management and control practices that minimize the damage. The broad spectrum approach, new to this edition, lumps compatible bacteria together into a relatively harmonious consortia that share a common primary purpose. It gives a big picture view of the role of bacteria not as single strains but collectively as communities and uses this information to provide key answers to common bacterial problems.

Laboratory Techniques in Plant Bacteriology is ideal for scientists and students who seek a career in plant pathogenic bacteria. This book contains 41 chapters comprising practicable techniques from isolation of bacterial plant pathogens to their identification up to species and race/biotype level. It includes identification protocols of morphological, biochemical, immunological, and molecular-based techniques. This book comprises all technological aspects of plant bacteriological studies. Its content is ideal for graduate students and research scholars including bacteriological professionals or technicians. The book ultimately provides working technologies useful for controlling bacterial disease pathogens.

This second edition of Modern Bacterial Taxonomy has been completely revised and expanded to include detailed coverage of molecular systematics including relevant aspects of nucleic acid sequences, the construction of phylogenetic trees, typing of bacteria by restriction fragment length polymorphisms, DNA hybridization probes and the use of the polymerase chain reaction in bacterial systematics.

Agrobacterium is a plant pathogen which causes the "crown-gall" disease, a neoplastic growth that results from the transfer of a well-defined DNA segment ("transferred DNA", or "T-DNA") from the bacterial Ti (tumor-inducing) plasmid to the host cell, its integration into the host genome, and the expression of oncogenes contained on the T-DNA. The molecular machinery, needed for T-DNA generation and transport into the host cell and encoded by a series of chromosomal (chv) and Ti-plasmid virulence (vir) genes, has been the subject of numerous studies over the past several decades. Today, Agrobacterium is the tool of choice for plant genetic engineering with an ever expanding host range that includes many commercially important crops, flowers, and tree species. Furthermore, its recent application for the genetic transformation of non-plant species, from yeast to cultivated mushrooms and even to human cells, promises this bacterium a unique place in the future of biotechnological applications. The book is a comprehensive volume describing Agrobacterium's biology, interactions with host species, and uses for genetic engineering.

Antimicrobial resistance (AMR) is a global public health threat that needs immediate attention and action from the scientific community. This book compiles and presents the latest and most important aspects of AMR, including the biology involved, its persistence and spread, and novel approaches to tackle this threat. The book first describes the mechanisms and spread of AMR, and then discusses the various approaches and strategies for combating it. Important topics include, microbial pathogenesis, AMR traits and major mechanisms underlying drug-resistance and the emerging strategies and technologies for combating AMR. Emphasis has been given on current developments about natural products including potent phyto-molecules, antimicrobial peptides and endophytes effective against the drug-resistant microbes and target the main drug-resistance determinants (efflux pumps, biofilms, quorum sensing, plasmids, etc.) in these bacterial pathogens. Other exciting topics include applications of nanomaterials in tackling AMR and CRISPR-Cas based precise sequence-specific antimicrobials. This informative book is meant for students and researchers in basic and medical microbiology and biotechnology. It is also useful to public health professionals and industry experts involved in AMR research and related drug-designing.

This volume presents a collection of methods that have contributed to the current understanding of bacterial persisters. Chapters in the book detail general guidelines for measuring persister levels in bacterial cultures, strategies to enrich and resuscitate persister subpopulations, single-cell approaches for visualizing and characterizing persisters, omics techniques and cellular and animal models for studying persistence. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Bacterial Persistence: Methods and Protocols, Second Edition aims to be a useful practical guide to researchers to help further their study in this field.

This book describes the multitude of interactions between plant, soil, and micro-organisms. It emphasizes on how growth and development in plants, starting from seed germination, is heavily influenced by the soil type. It describes the interactions established by plants with soil and inhabitant microbial community. The chapters describe how plants selectively promote certain microorganisms in the rhizospheric ecozone to derive multifarious benefits such as nutrient acquisition and protection from diseases. The diversity of these rhizospheric microbes and their interactions with plants largely depend on plant genotype, soils attributes, and several abiotic and biotic factors. Most of the studies concerned with plant-microbe interaction are focused on temperate regions, even though the tropical ecosystems are more diverse and need more attention. Therefore, it is crucial to understand how soil type and climatic conditions influence the plant-soil-microbes interaction in the tropics. Considering the significance of the subject, the present volume is designed to cover the most relevant aspects of rhizospheric microbial interactions in tropical ecosystems. Chapters include aspects related to the diversity of rhizospheric microbes, as well as modern tools and techniques to assess the rhizospheric microbiomes and their functional roles. The book also covers applications of rhizospheric microbes and evaluation of prospects improving agricultural practice and productivity through the use of microbiome technologies. This book will be extremely interesting to microbiologists, plant biologists, and ecologists.

Many researchers have been deterred from the study of anaerobes because of the perceived difficulties in culture methods. Advances in equipment and methodology have led to more widespread study of these diverse and fascinating organisms and their activities, generating more interest in the subject. This book provides the first ready source of general methods of use to all anaerobic microbiologists, in addition to those which are valuable in the study of the specific habitats or groups of organisms. Topics include isolation and culture techniques as well as range of taxonomic methods, and protocols for biochemical and genetic studies. Several chapters are also devoted specifically to organisms with special culture requirements, such as the methanogens, sulphate-reducing bacteria, and anaerobic eukaryotes (including both protozoa and fungi). This volume will be essential to all those interested in the study of anaerobic micro-organisms, whether in the fields of taxonomy, ecology, physiology or molecular biology.

This book presents a timely review of the latest advances in rhizosphere biology, which have been facilitated by the application of omics tools. It includes chapters on the use of various omics tools in rhizosphere biology, focusing on understanding plant and soil microbe interactions. The role of proteomics and metagenomics in research on symbiotic association is also discussed in detail. The book also includes chapters on the use of omics tools for the isolation of functional biomolecules from rhizospheric microorganisms. The book's respective sections describe and provide detailed information on important omics tools, such as genomics, transcriptomics, proteomics, metabolomics and meta-epigenomics. In turn, the book promotes and describes the combined use of plant biology, microbial ecology, and soil sciences to design new research strategies and innovative methods in soil biology. Lastly, it highlights the considerable potential of the rhizosphere in terms of crop productivity, bioremediation, ecological engineering, plant nutrition and health, as well as plant adaptation to stress conditions. This book offers both a practical guide and reference source for all scientists working in soil biology, plant pathology, etc. It will also benefit students studying soil microbiology, and researchers studying rhizosphere structure.