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"Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology's art program enhances students' understanding of concepts through clear and effective illustrations, diagrams, and photographs. Microbiology is produced through a collaborative publishing agreement between OpenStax and the American Society for Microbiology Press. The book aligns with the curriculum guidelines of the American Society for Microbiology."--BC Campus website.
Bacteria have been the dominant forms of life on Earth for the past 3.5 billion years. They rapidly evolve, constantly changing their genetic architecture through horizontal DNA transfer and other mechanisms. Consequently, it can be difficult to define individual species and determine how they are related. Written and edited by experts in the field, this collection from Cold Spring Harbor Perspectives in Biology examines how bacteria and other microbes evolve, focusing on insights from genomics-based studies. Contributors discuss the origins of new microbial populations, the evolutionary and ecological mechanisms that keep species separate once they have diverged, and the challenges of constructing phylogenetic trees that accurately reflect their relationships. They describe the organization of microbial genomes, the various mutations that occur, including the birth of new genes de novo and by duplication, and how natural selection acts on those changes. The role of horizontal gene transfer as a strong driver of microbial evolution is emphasized throughout. The authors also explore the geologic evidence for early microbial evolution and describe the use of microbial evolution experiments to examine phenomena like natural selection. This volume will thus be essential reading for all microbial ecologists, population geneticists, and evolutionary biologists.
One of the greatest medical accomplishments of the past century was the introduction of antibiotics into the clinic. However, the use of these lifesaving drugs rapidly led to the emergence of antibiotic-resistant pathogens, which have become increasingly difficult and expensive to eradicate. Antibiotic resistance now severely limits our ability to curb infectious diseases and is therefore a major global health concern. Written and edited by experts in the field, this collection from Cold Spring Harbor Perspectives in Medicine examines the major classes of antibiotics, together with their modes of action and mechanisms of resistance. Well-established antibiotics (e.g., -lactams) are covered, as are lesser-used drugs that have garnered recent interest (e.g., polymyxins) and new compounds in the development pipeline. The contributors describe the mechanisms by which the agents disrupt cell wall assembly and maintenance, membrane synthesis and integrity, DNA and RNA metabolism, protein synthesis, and the folate cycle. They also examine how bacteria evolve ways to resist these disruptions by modifying the drug or drug target or by controlling access of the drug to the cell. The authors also explore the environmental origins of antibiotic resistance and provide guidance on the rational development and therapeutic application of new antibiotics. This volume is therefore an essential reference for microbiologists, pharmacologists, infectious disease biologists, and all concerned with this medical crisis.
First multi-year cumulation covers six years: 1965-70.
Includes subject section, name section, and 1968-1970, technical reports.
The concept of fitness has long been a topic of intense debate among evolutionary biologists and their critics, with its definition and explanatory power coming under attack. In this book, Richard Michod offers a fresh, dynamical interpretation of evolution and fitness concepts. He argues that evolution has no enduring products; what matters is the process of genetic change. Whereas many biologists have focused on competition and aggression as determining factors in survival, Michod, by concentrating on the emergence of individuality at new and more complex levels, finds that cooperation plays even a greater role. Michod first considers the principles behind the hierarchically nested levels of organization that constitute life: genes, chromosomes, genomes, cells, multicellular organisms, and societies. By examining the evolutionary transitions from the molecular level up to the whole organism, the author explains how cooperation and conflict in a multilevel setting leads to new levels of fitness. He builds a model of fitness drawing on recent developments in ecology and multilevel selection theory and on new explanations of the origin of life. Michod concludes with a discussion of the philosophical implications of his theory of fitness, a theory that addresses the most fundamental and unique concept in all of biology.