Sunday, March 30, 2008

Microbial Diversity: Form and Function in Prokaryotes


Microbial Diversity: Form and Function in Prokaryotes
by Oladele Ogunseitan (Author)

Product Details
Paperback: 312 pages
Publisher: Wiley-Blackwell (December 7, 2004)
Language: English
ISBN-10: 0632047089

Book Description
This book offers the first comprehensive, in-depth treatment of microbial diversity for undergraduate and graduate students. Using a global approach, Microbial Diversity illustrates the impact of microorganisms on ecological and Earth system phenomena.
Accompanied by a devoted website with resources for both instructors and students: www.blackwellpublishing.com/ogunseitan
Uses key ecological and global phenomena to show the continuity of microbial contribution.
Illustrates the importance of microbial diversity for the understanding of global physiochemical and biological processes.
Presents analyses of microscopic, culture, molecular, and phylogenetic systematic methods.
Shows the relevance of microbial diversity to global environmental problems, such as climate change and ozone depletion.
Features numerous illustrations, including over 60 4-color photographs of microbes.

CONTENTS

Foreword ix

Preface xiii

PART I CONCEPTS AND

METHODS 1

1 The concept of microbial species 3

Old and new challenges for assessing microbial

diversity 4

Traditional concepts of species 6

Typological species concept 6

Morphological species concept 7

Biological species concept 7

Evolutionary species concept 8

Other concepts 8

Species concepts for prokaryotes 10

Theoretical mechanisms of speciation 12

Anagenesis 12

Cladogenesis 13

Macroevolution theories 13

Species fusion theory 14

Gradual speciation 17

Microbial speciation 18

Conclusion: Emerging concepts and applications of

microbial diversity 19

Questions for further investigation 21

Suggested readings 21

2 Microscopic methods for assessing

microbial diversity 23

Advances in instrumentation and methodology 23

Basic light microscopy 24

Electron microscopy 24

Specialized light microscopy 26

Microscopic video image analysis 27

Objectives for microscopic analysis in microbial

diversity assessment 27

Microbial cell morphological types 28

Multicellular organization in microbial colonies 29

Relative abundance of species in a community 29

Cellcell interactions 30

Viability and metabolic activities 32

Cell components 33

Predation and parasitism that regulate

populations 33

Differentiation and life cycles 36

Fossil microorganisms 36

Conclusion 38

Questions for further investigation 41

Suggested readings 41

3 Culture methods 43

Cultivation and diversity assessment 43

Axenic cultures 47

Modeling microbial nutrition 47

Microbial trophic systems 48

Aeration 48

Carbon and energy sources 49

Selective growth conditions 50

Microcosm cultures 50

Somnicells and microbial diversity assessment 51

Conclusion 56

Questions for further investigation 56

Suggested readings 56

4 Molecular and genomic methods 58

The molecular context of microbial diversity 58

Interpretation of molecular diversity 59

Nucleic acid sequence comparisons 60

Specific nucleic acid-based methods 61

Signature lipid biomarkers 66

Protein profiles 69

Molecular microarray systems 70

Conclusion 71

Questions for further investigation 71

Suggested readings 71

5 Phylogenetic analysis 73

The rationale for phylogenetic trees 73

Multiple sequence alignments 75

Constructing phylogenetic trees from aligned

sequences 75

Interpreting phylogenetic trees 76

Case study of phylogenetic relationships and

niche diversity 77

Conclusion 82

Questions for further investigation 84

Suggested readings 84

PART II PRINCIPLES AND

APPLICATIONS 85

6 Environmental evolution 87

Biogenesis 87

The case for panspermia 89

The history of microbial diversity in stromatolites

(microbialites) 94

Contemporary microbial mats 96

Microbial life and evolution in extreme

environments 101

The emergence of multicellularity and eukaryosis,

and their consequences for environmental

evolution 104

Endosymbiosis 104

Biotic effects on the evolution of Earths

atmosphere 106

Practical aspects of microbial diversity and

environmental evolution 107

Hydrogenesis 107

Methanogenesis 108

Carbon sequestration 109

Conclusion 109

Questions for further investigation 110

Suggested readings 110

7 Biogeochemical cycling of carbon

and nitrogen 112

The Earth as an integrated biogeochemical system 113

Integrative research on biogeochemical cycling 116

The carbon cycle 119

Photosynthesis 122

Methanogenesis 125

Methanotrophy 131

Heterotrophy 134

Biochemical and phylogenetic range of

heterotrophy 139

The nitrogen cycle 141

Nitrogen fixation 143

Evolutionary history of biological nitrogen

fixation 144

Nitrogen fixation and environmental change 149

Ammonification and nitrification 151

Ammonification 151

Nitrification 151

Denitrification 154

The global dimension of the nitrogen cycle:

Prospects and challenges 156

Conclusion 157

Questions for further investigation 157

Suggested readings 157

8 Biogeochemical cycling of

phosphorus, sulfur, metals, and trace

elements 159

The phosphorus cycle 160

Phosphine cycling 164

The sulfur cycle 165

Desulfuration 165

Sulfur oxidation 169

Sulfur reduction 170

Prospects and challenges of the sulfur cycle 170

Metals and trace element cycles 172

Conclusion 176

Questions for further investigation 177

Suggested readings 177

9 Cross-species interactions among

prokaryotes 178

Quorum sensing 179

Interactions with viruses 183

Aquatic viruses 184

Soil viruses 187

Prokaryotic interactions and genetic exchange 189

Microbial consortia and the crisis of isolation 191

Natural antibiosis and microbial diversity 193

Conclusion 196

Questions for further investigation 197

Suggested readings 197

10 Interactions between microorganisms

and large eukaryotes 198

Microbial diversity and geography 198

Plant diseases 199

Impacts of global environmental change on

microbial pathogens and plant diseases 205

Animal diseases 209

Mad cow disease 210

Foot and mouth disease 212

Human diseases 213

Tuberculosis 213

Cholera 216

Diseases of marine organisms 218

The beneficial effects of microbeeukaryote

interactions 220 Conclusion 222

Questions for further investigation 223

Suggested readings 223

11 Microbial diversity and global

environmental issues 225

Microbial diversity and indexes of environmental

change 226

Quantitative measures of species diversity 227

Global climate change 233

Stratospheric ozone depletion 235

Toxic chemical pollution 237

Conservation of global biodiversity 238

Conclusion 241

Questions for further investigation 242

Suggested readings 242

Appendix 1 Partial list of sequenced microbial

genomes 243

Glossary 251

References 258

Index 287

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