Psychrophiles: From Biodiversity to BiotechnologyRosa Margesin, Franz Schinner, Jean-Claude Marx, Charles Gerday Springer Science & Business Media, 8 dic 2007 - 462 páginas Most scientists in the middle of the twentieth century would probably not have believed that life was possible at extreme values of environmental factors, such as pH values close to 0 (e. g. sulfurous environments) or to 14 (e. g. soda lakes), sali- ties of 6 M NaCl (e. g. Dead Sea), hydrostatic pressures approaching 0. 1 MPa (deep sea) and temperatures exceeding 100°C (thermal vents or hot springs) or as low as –20°C (e. g. polar regions). Of the current studies on extremophiles, approximately 30,000 articles by the year 2007, almost two-thirds have been performed on org- isms adapted to outstanding temperatures, but much more attention has been paid to thermophiles than to psychrophiles. However, over the past 10 years, scientific publications on cold-adapted microorganisms have increased by a factor of ten. If one considers the extent of cold habitats, psychrophiles, i. e. cold-loving organisms, should largely lead in this comparison with thermophiles because a great proportion of the Earth’s biosphere never reaches temperatures above 5°C. Nearly three-quarters of the Earth is covered by oceans whose deep water masses, irrespective of latitude, are constantly between 2 and 4°C. The large continent of Antarctica also provides a permanently cold terrestrial environment as well as an aquatic niche in the surrounding ice that melts during the summer. Other examples of cold habitats are permafrost soils, high alpine soils, cold deserts, cold caves, marine sediments, snow, glacier and sea ice. |
Índice
3 | |
Limits for Microbial Life at Subzero Temperatures | 17 |
Bacteria in Snow and Glacier Ice 31 | 30 |
Bacteria in Subglacial Environments | 51 |
Psychropiezophiles | 73 |
Bacteria in Permafrost | 83 |
Anaerobic Bacteria and Archaea in Cold Ecosystems | 103 |
Cyanobacteria in Cold Ecosystems 121 | 120 |
Cryoprotectants and IceBinding Proteins | 229 |
The Role of Exopolymers in Microbial | 247 |
Genomic Analysis of Psychrophilic Prokaryotes | 265 |
Linking Functional Genomics | 285 |
Microbial Community | 313 |
Proteomic Studies of Psychrophilic Microorganisms | 333 |
Biotechnological Aspects of ColdAdapted Enzymes 347 | 346 |
Heterologous Protein Expression in Psychrophilic | 365 |
Fungi in Cold Ecosystems | 137 |
ColdActive Viruses | 157 |
Membrane Components and Cold Sensing | 177 |
ColdShock Proteins | 191 |
Fundamentals of ColdAdapted Enzymes 211 | 210 |
ColdAdapted Fungi as a Source | 380 |
Natural and Stimulated Biodegradation of Petroleum | 389 |
Biological Iron Oxidation and Sulfate Reduction | 429 |
455 | |
Otras ediciones - Ver todo
Psychrophiles: From Biodiversity to Biotechnology Rosa Margesin No hay ninguna vista previa disponible - 2017 |
Psychrophiles: From Biodiversity to Biotechnolgy Rosa Margesin,Franz Schinner,Jean-Claude Marx,Charles Gerday No hay ninguna vista previa disponible - 2007 |
Términos y frases comunes
activity adaptation addition anaerobic analysis Antarctic Antarctica Appl Environ Microbiol Arctic bacteria bacteriophage bacterium Biol bioremediation cells changes characterization chemical clones cold cold-adapted cold-shock coli communities compared composition concentrations contain crystal culture cyanobacteria decrease deep diversity Ecol ecosystems effects energy environmental enzymes et al expression extreme fatty acid freezing function fungi gene genome glacier glacier ice groups grow growth habitats ice core important increased indicated isolated lakes limits lipids liquid low temperatures marine mechanisms melting membrane mesophilic metagenomic methods microbial microorganisms molecular Nature novel nutrient observed Ocean organisms permafrost polar present pressure Priscu processes production protein psychrophilic psychrotolerant range rates recent reducers regions reported response salinity samples Science sea ice sediments sequence showed similar snow soil solutes species stability strain structure studies subglacial surface Table University