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Halophiles : genetics and genomes /
Extreme halophilic environments - including salt lakes and springs, seawater evaporation facilities for the production of sea salt, and subterranean salt deposits derived from ancient oceans - are distributed patchily all over the world. The life that dominates them is microbial (e.g., prokaryotes a...
| Clasificación: | Libro Electrónico |
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| Otros Autores: | , |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Norfolk, UK :
Caister Academic Press,
[2014]
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Contributors; Preface; 1: Ecology and Evolution of Haloquadratum walsbyi Through the Lens of Genomics and Metagenomics; Introduction; The ecology of solar saltern crystallizer; Haloquadratum walsbyi: the uncultivable species; Unveiling the extent of intragenomic diversity in Haloquadratum walsbyi; Metagenomic islands; Interactions between Haloquadratum walsbyi and other species in the crystallizer pond; The metagenomic insight into predator-prey interplay in aquatic environments; The 'Constant diversity' dynamics model; Conclusion.
- 2: Salinibacter ruber: The Never Ending Microdiversity?Introduction; Abundance and distribution revisited; Microdiversity and recombination; Inter-domain (Archaea-Bacteria) lateral gene transfer: archaeal genes in Salinibacter ruber genomes; The power of metabolomics to explore phenotypic microdiversity; Future trends; 3: Horizontal Gene Transfer in Halobacteria; Introduction; Mechanisms of horizontal gene transfer; Mechanisms of horizontal gene transfer in Halobacteria; Evidence for horizontal gene transfer in Halobacteria from single gene studies.
- The origins of the Halobacteria may be rooted in horizontal gene transferHomologous recombination within and between Halobacterial lineages; Geographic isolation and barriers to recombination; 4: Comparative Genomics of Haloarchaeal Viruses; Introduction; Haloarchaeal versus prokaryotic viruses; Infection cycle; Related or not related, that's the problem; The influence of viral genes on their hosts; Haloarchaeal viruses; Conclusions and future prospects; 5: Microbial Adaptation to Saline Environments: Lessons from the Genomes of Natranaerobius thermophilus and Halobacillus halophilus.
- IntroductionThe anaerobic polyextremophile Natranaerobius thermophilus; The aerobic moderately halophilic Halobacillus halophilus; Synopsis; 6: Staying in Shape: The Haloarchaeal Cell Wall; Introduction; Structure of haloarchaeal surface (S)-layers; Haloarchaeal S-layer glycoproteins; Glycosylation of haloarchaeal S-layer glycoproteins; Modulation of haloarchaeal S-layer glycoprotein N-glycosylation as an adaptive response; Lipid-modification of haloarchaeal S-layer glycoproteins; The cell envelope of the square haloarchaeon, Haloquadratum walsbyi.
- Does the haloarchaeal cell envelope include a periplasmic space?The heteropolysaccharide cell walls of Halococcus morrhuae and Natronococcus occultus; Future trends; 7: Cell Cycle and Polyploidy in Haloarchaea; Introduction; The cell cycle of Halobacterium salinarum; Regulated polyploidy in haloarchaea; Evolutionary advantages of haloarchaeal polyploidy; Gene conversion and escape from 'Muller's ratchet'; Conclusions and outlook; 8: Cell Regulation by Proteolytic Systems and Protein Conjugation; Introduction; Intramembrane proteolysis; Energy-dependent proteases.