The Microbial World

"The Arts of the Microbial World explores how Japanese scientists and skilled workers sought to use the microbe's natural processes to create new products, from soy-sauce mold starters to MSG and from vitamins to statins. In traditional brewing houses as well as in the food, fine chemical, and pharmaceutical industries across Japan, they showcased their ability to deal with the enormous sensitivity and variety of the microbial world. Victoria Lee's careful study offers a lush historical example of a society where scientists asked microbes for what they termed "gifts." Lee's story ranges from the microbe's integration into Japan as an imported concept to its precise application in recombinant DNA biotechnology. By focusing on a conception of life as fermentation in Japan, she showcases the significance of cultural and technical continuities with the pre-modern period in sustaining non-Western technological breakthroughs in the global economy. At a moment when twenty-first-century developments in the fields of antibiotic resistance, the microbiome, and green chemistry strongly suggest that the traditional eradication-based approach to the microbial world is unsustainable, twentieth-century Japanese microbiology provides a new, broader vantage for understanding and managing microbial interactions with society"--

The beginnings of microbiology. The methods of microbiology. The nature of the microbial world. The protists. The procaryotes: an introductory survey. Microbial metabolism: the generation of ATP. Microbial metabolism: biosynthesis. Regulation. Microbial growth. The effect of environment on microbial growth. The relations between structure and function in procaryotic cells. The viruses. Mutation and gene-function at the molecular level. The expression of mutation in viruses, cells, and cell populations. Genetic recombination. The classification of bacteria. The photosynthetic procaryotes. Gram-negative bacteria: the chemoautotrophs and methylotrophs. Gram-negative bacteria: aerobic chemoheterotrophs. The enteric group and related organism. Gram-negative bacteria: myxobacteria and other gliding organisms. Gram-positive bacteria: unicellular endosporeformers. Gram-positive bacteria: the actinomycente line. Nonspore-forming strict anaerobes. Microorganisms as geochemical agents. Symbiosis. Symbiotic associations between photosynthetic and nonphotosynthetic partners. Symbiotic associations between two nonphotosynthetic partners. Microbial pathogenicity. Microbial diseases of man. The exploitation of microorganisms by man.

As with the first edition, this second edition of Living in a Microbial World is written for students taking a general microbiology course, or a microbiology-based course for non-science majors. The conversational style and use of practical, everyday examples make the essential concepts of microbiology accessible to a wide audience. While using this approach, the text maintains scientific rigor with clear explanations spanning the breadth of microbiology, including health, evolution, ecology, food production, biotechnology, and industrial processes. Each chapter contains a series of case studies based on microbiology in the news, in history, and in literature. There are questions at the end of each case study and the end of each chapter, as well as an online quiz with help on answering the questions. The text, questions, and cases have been updated to reflect the changing influence of microbiology in the world today, from the microbiome, to new disease outbreaks (Ebola and Zika) and antibiotic resistance, to new biotechnology tools (CRISPR-Cas).

Microbes, or microorganisms, are tiny living beings that cannot be seen by the naked eye. These little guys are one of the oldest living things on Earth, and are extremely diverse in how they live and what they can do. They, for example, can live in many places, from the freezing iciness of glaciers, to the insides of other organisms, like termites or humans. Since they are virtually everywhere, microorganisms are essential for the biological processes that allow plants and animals to breath, eat and thrive. But how were they able to endure, adapt and flourish constantly over millions of years? The secrets of their success are still within them, coded into their genomes, waiting for us to understand them. Now, genomes, bacterial or otherwise, are the repositories of life. These repositories store almost every bit of information that allows living beings to live in discrete units called genes. Genes are strung together like the sentences in a book, interacting with each other to create meaning, saving the story of that particular book—or that particular living organism’s genome—so it can be copied, modified, corrected or enhanced, and then passed on to new generations. After many, many years of studying these “books,” we have learned to read and understand them, thanks to the technological innovations of the last decade. Nowadays, it is possible to get the full genomic sequence of practically any organism, and compare it with thousands of genomes from other organisms, letting us peek at the secrets that make each organism who it is. With the current technical abilities, the challenge now is not to obtain the information but to interpret all those chunks of the story. Finding ways to untangle the riddles of genomic information is the work of Genomics, the science that allows us to obtain, analyze and prioritize information among the many stories that we sequence everyday. To do this, Genomics draws from many sciences, like mathematics and computing sciences, making it a truly interdisciplinary endeavor. Right now , genomics are one of the most important areas of biology, and many, if not most, of current biological studies use at least a little bit of genomics. For example, genomics can be used to identify a microbe and give it a name, to learn about what types of things it can do or places it can live, and to figure out the mechanisms that enable it to survive under particular conditions. Here, we will dwell on some of the basic questions about microbial adaptation, biodiversity, and their relationships with other living beings using a genomic approach. We will also focus on the environment, trying to understand how such tiny little creatures are capable of solving their daily problems, and how they can alter the places in which they live. Learning about these mechanisms will not only provide us with knowledge about life in general but will also help us to understand these organisms as a fundamental component of our ecosystem, including their harmful and beneficial effects in all aspects of our daily life, which can be translated into useful applications in almost any imaginable way.

This stunning photographic essay opens a new frontier for readers to explore through words and images. Microbial studies have clarified life’s origins on Earth, explained the functioning of ecosystems, and improved both crop yields and human health. Scott Chimileski and Roberto Kolter are expert guides to an invisible world waiting in plain sight.

This volume summarizes recent advances in environmental microbiology by providing fascinating insights into the diversity of microbial life that exists on our planet. The first two chapters present theoretical perspectives that help to consolidate our understanding of evolution as an adaptive process by which the niche and habitat of each species develop in a manner that interconnects individual components of an ecosystem. This results in communities that function by simultaneously coordinating their metabolic and physiologic actions. The third contribution addresses the fossil record of microorganisms, and the subsequent chapters then introduce the microbial life that currently exists in various terrestrial and aquatic ecosystems. Coverage of the geosphere addresses endolithic organisms, life in caves and the deep continental biosphere, including how subsurface microbial life may impact spent nuclear fuel repositories. The discussion of the hydrosphere includes hypersaline environments and arctic food chains. By better understanding examples from the micro biosphere, we can elucidate the many ways in which the niches of different species, both large and small, interconnect within the overlapping habitats of this world, which is governed by its microorganisms.