James W. Brown - Principles of Microbial Diversity

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Every speck of dust, drop of water, and grain of soil and each part of every plant and animal contain their own worlds of microbes. Designed as a key text for upper-level undergraduates majoring in microbiology, genetics, or biology,
provides a solid curriculum for students to explore the enormous range of biological diversity in the microbial world. Within these richly illustrated pages, author and professor James W. Brown provides a practical guide to microbial diversity from a phylogenetic perspective in which students learn to construct and interpret evolutionary trees from DNA sequences. He then offers a survey of the «tree of life» that establishes the necessary basic knowledge about the microbial world. Finally, the author draws the student's attention to the universe of microbial diversity with focused studies of the contributions that specific organisms make to the ecosystem.
Principles of Microbial Diversity

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PRINCIPLES OF Microbial Diversity

JAMES W. BROWN

Department of Biological Sciences

North Carolina State University

Raleigh, North Carolina

Copyright 2015 American Society for Microbiology All rights reserved No - фото 1

Copyright © 2015 American Society for Microbiology. All rights reserved. No part of this publication may be reproduced or transmitted in whole or in part or reused in any form or by any means, electronic or mechanical, including photocopying and recording, or by any information storage and retrieval system, without permission in writing from the publisher.

Disclaimer: To the best of the publisher’s knowledge, this publication provides information concerning the subject matter covered that is accurate as of the date of publication. The publisher is not providing legal, medical, or other professional services. Any reference herein to any specific commercial products, procedures, or services by trade name, trademark, manufacturer, or otherwise does not constitute or imply endorsement, recommendation, or favored status by the American Society for Microbiology (ASM). The views and opinions of the author(s) expressed in this publication do not necessarily state or reflect those of ASM, and they shall not be used to advertise or endorse any product.

Library of Congress Cataloging-in-Publication Data

Brown, James W., 1958– author.

Principles of microbial diversity / James W. Brown, Department of Biological Sciences, North Carolina State University, Raleigh, North Carolina.

pages cm

Includes index.

ISBN 978-1-55581-442-7 (pbk.) -- ISBN 978-1-55581-851-7 (e-book) 1. Microbial diversity. 2. Microbial ecology. I. Title.

QR73.B76 2014

579—dc23

2014000523

eISBN: 978-1-55581-851-7

doi:10.1128/9781555818517

All rights reserved

Address editorial correspondence to ASM Press, 1752 N St. NW, Washington, DC 20036-2904, USA

Send orders to ASM Press, P.O. Box 605, Herndon, VA 20172, USA

Phone: (800) 546-2416 or (703) 661-1593; Fax: (703) 661-1501

E-mail: books@asmusa.org

Online: http://www.asmscience.org

Cover and interior design: Susan Brown Schmidler

Illustrations: Lineworks, Inc.

Cover image: Dark-field image of Globigerina bulloides , an abundant and widely ranging planktonic foraminifer. The shell length is ~300 μm. (Image courtesy of Howard Spero, Department

This book is dedicated to the memory of Elizabeth Haas .

You are missed by all who knew you .

Preface

ALTHOUGH IT HAS BEEN RECOMMENDED that undergraduate curricula for microbiology majors require a core course on microbial diversity, microbiology programs most often lack such a course. One reason for this lack is that, unlike the other recommended core microbiology courses, there has been no appropriate textbook on microbial diversity for students at the undergraduate level. Principles of Microbial Diversity is intended to fill this gap.

This textbook is intended primarily for junior and senior undergraduate students who are majoring in microbiology or a related field. Students should already have studied a general microbiology course and should have familiarity with genetics and either biochemistry or microbial physiology. The perspective in this book is phylogenetic and organismal, from the Carl Woese school (in contrast to the approach of most general microbiology textbooks) (1). This textbook arose from an existing senior-level lecture/lab course on microbial diversity and so has been in use with success already.

The book comprises four main sections. The first section is introductory, laying out the scope of the text, defining the perspective, and providing a historical context. This is followed by a practical guide to molecular phylogenetic analysis, focusing on how to create and interpret phylogenetic trees, and an overview of “the Tree of Life.” The second section is a tour through each of the major familiar phylogenetic groups of Bacteria and Archaea (microbial eukaryotes and viruses are also covered briefly), discussing the general properties of the organisms in each group, describing some representatives in more detail, and concluding with one or two specific topics on the unique properties of these organisms.

The third section of the book is conceptually and experimentally defined (based on primary literature), beginning with identification of unknown and potentially uncultivable organisms and leading to molecular surveys of populations, linking processes with specific organisms. This sequence leads to the final section, brief discussions of various aspects of microbial genomics and origins.

The most straightforward approach for covering the two large middle sections of the textbook in class is to start with the survey of phylogenetic groups and follow this with the concept/literature chapters. An alternative approach, which I have used with great success, is to intertwine them. In my experience, each lecture begins with the discussion of a particular microbial phylum (a portion of a chapter in section two), with some discussion of general topics raised about these organisms, leading into one of the papers from sections three and four of the textbook (or a more recent paper chosen by the instructor) that highlights organisms in the group discussed in that lecture. For example, a chapter might start out with a discussion of the Chlamydiae , describing the members of the group, their phenotype, pathogenicity, and life cycle, and be followed by a discussion of reductive evolution in parasites. It would then shift gears to an introduction to genomics, exemplified by the paper describing the Protochlamydia amoebophila genome and what it teaches us about the origin of obligate pathogens. The order of topics, as would be taught in the course, would be defined by the conceptual thread (section four of the text), building in complexity.

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