Characteristics of Deep-Sea Environments and Biodiversity of Piezophilic Organisms

1. Investigation of Life in a High-Pressure Environment 2. JAMSTEC Exploration of the Deep-Sea High-Pressure Environment 3. Taxonomic Identification of Piezophilic Bacteria 3.1. Isolation of Piezophiles and their Growth Properties 3.2 Taxonomic Characterization and Phylogenetic Relations 4. Biodiversity of Piezophiles in the Ocean Environment 4.1. Microbial Diversity of the Deep-Sea Environment at Different Depths 4.2 Changes in Microbial Diversity under High-Pressure Cultivation 4.3. Diversity of Deep-Sea Shewanella Is Related to Deep Ocean Circulation 4.3.1. Diversity, Phylogenetic Relationships, and Growth Properties of Shewanella Species Under Pressure Conditions 4.3.2. Relations between Shewanella Phylogenetic Structure and Deep Ocean Circulation 5. Molecular Mechanisms of Adaptation to the High-Pressure Environment 5.1. Mechanisms of Transcriptional Regulation under Pressure Conditions in Piezophiles 5.1.1. Pressure-Regulated Promoter of S. violacea Strain DSS12 5.1.2. Analysis of the Region Upstream From The Pressure-Regulated Genes 5.1.3. Possible Model of Molecular Mechanisms of Pressure-Regulated Transcription By The Sigma 54 Factor 5.2. Effect of Pressure on Respiratory Chain Components in Piezophiles 5.2.1. Respiratory Systems In S. violacea Strain DSS12 5.2.2. Respiratory Systems In Another Piezophile, S. benthica Strain DB172F 6. Conclusions Acknowledgments Glossary Bibliography Biographical Sketches