Proteobacteria: Phylogeny, Metabolic Diversity and Ecological Effects

PROTEOBACTERIA: PHYLOGENY, METABOLIC DIVERSITY AND ECOLOGICAL EFFECTS......Page 3
PROTEOBACTERIA: PHYLOGENY, METABOLIC DIVERSITY AND ECOLOGICAL EFFECTS......Page 5
CONTENTS......Page 7
PREFACE......Page 9
ABSTRACT......Page 15
NOMENCLATURE......Page 16
1.1. Biogeochemical Profiles in Sediments......Page 18
1.2. Biogeochemical Processes Driven by Proteobacteria in Sediments......Page 19
2. CASE STUDY -LAKE FURNAS......Page 24
2.1. Organic Matter, Nutrients, Iron, pH and Oxygen Profiles in Sediments......Page 25
2.2. Phylogeny of Proteobacteria in Sediments......Page 28
2.3. Quantification of Proteobacteria Involved in the N cycle, Fe Reduction and P Accumulation in Sediments......Page 30
2.4. Bacterial Activity in Sediments Related to the N cycle, Fe Reduction and P Accumulation......Page 33
REFERENCES......Page 38
SUMMARY......Page 51
1. THE ALPHA-PROTEOBACTERIA NODULATING LEGUMES AND PARASPONIA......Page 52
2. THE NEW ALPHA-PROTEOBACTERIA NODULATING LEGUMES AND PARASPONIA......Page 56
3. THE BETA-PROTEOBACTERIA NODULATING LEGUMES......Page 59
4. THE NITROGEN-FIXING GAMMA-PROTEOBACTERIA ENDOPHYTIC OF LEGUME NODULES......Page 61
REFERENCES......Page 63
ABSTRACT......Page 71
1. INTRODUCTION......Page 72
2. THE ENDOSYMBIOTIC HYPOTHESIS ABOUT MITOCHONDRION ORIGIN......Page 73
3.1 Evidence from Morphology, Cell Biology, Biochemistry, and Molecular Biology Studies......Page 74
3.3 Evidence from Genomics Studies......Page 75
4.1 Genome Reduction......Page 76
4.2 Proteome Reduction and Expansion......Page 77
4.3 Protein Relocation......Page 78
4.4 A Crucial Step: The Origin of the Mitochondrial Import Machinery......Page 79
4.5 Hydrogenosomes and Mitosome – Atypical Mitochondria?......Page 80
REFERENCES......Page 81
ABSTRACT......Page 87
REFERENCES......Page 101
SUMMARY......Page 105
PUNE-ANDINE HIGH-ALTITUDE LAKES: A DIVERSE SOURCE OF POLI-EXTREMOPHILIC MICROORGANISMS......Page 107
ENVIRONMENTAL DESCRIPTION OF THE GEOGRAPHICAL AREA AT THE HAAL......Page 110
PROTEOBACTERIA: WORLDWIDE DIVERSITY AND  ECOLOGICAL FUNCTIONS......Page 112
PROTEOBACTERIAL DIVERSITY AT THE PUNE-ANDINE HIGH-ALTITUDE LAKES......Page 114
Ultraviolet Radiation Resistance as the Rule for HAAL´s Proteobacteria......Page 120
Arsenic Resistance as a Natural Phenomenon at the HAAL......Page 122
Halophilic Proteobacteria from the HAAL......Page 123
An Unexpected Outcome: Widespread Antibiotic Resistance in the HAAL´S Proteobacteria......Page 124
ACINETOBACTER: A GENUS WELL REPRESENTED AT THE HAAL BY POLYEXTREMOPHILIC MICROBES......Page 126
A BREAK-THROUGH: PROTEOBACTERIA FROM STROMATOLITES OVER 4,000 M ABOVE SEA LEVEL.......Page 129
CONCLUDING REMARKS AND FUTURE PROSPECTIVE......Page 130
REFERENCES......Page 131
ABSTRACT......Page 145
INTRODUCTION......Page 146
Chromate resistance transposon of Pseudomonas sp. Tik3......Page 147
The Expression of Tik3 Chromate-resistanceTransposon in Different Proteobacteria......Page 150
Nucleotide Sequence Accession Number.......Page 152
ACKNOWLEDGMENTS......Page 153
REFERENCES......Page 154
ABSTRACT......Page 157
1. INTRODUCTION......Page 158
2. CULTIVATION OF SHEATH-FORMING BACTERIA AND PREPARATION OF SHEATHS......Page 159
3. MICROSCOPIC OBSERVATION OF SHEATHS......Page 160
4. COMPOSITION OF SHEATHS......Page 162
4.2. Sugar Composition of Sheaths......Page 163
5. ENZYMATIC DEGRADATION OF SHEATHS......Page 164
6. CHEMICAL STRUCTURE OF SULFHYDRYL GLYCOCONJUGATES......Page 165
7. CONCLUSION......Page 166
REFERENCES......Page 167
INDEX......Page 171