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Hyperthermophiles in the History of Life

Hyperthermophiles in the History of Life. Karl O. Stetter University of Regensburg. Pasteurisation:. 80°C 60 sec. 100°C 5 sec. Definition: "Hyperthermophiles". Optimum growth temperature:  80°C and above (Stetter, 1989*) = temperature of Pasteurization

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Hyperthermophiles in the History of Life

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  1. Hyperthermophiles in the History of Life Karl O. Stetter University of Regensburg

  2. Pasteurisation: • 80°C 60 sec. • 100°C 5 sec.

  3. Definition: "Hyperthermophiles" • Optimum growth temperature: 80°C and above (Stetter, 1989*) = temperature of Pasteurization • Usually:no growth at 60°C or below- some not even below 80°C - * Stetter (1989) in: Autotrophic Bacteria (Schlegel and Bowien, eds.) Springer Berlin, pp. 167-175.

  4. Thermoproteus sp.

  5. Pyrodictium occultum: Tmax = 110°C Culture High intensity darkfield microscopy K. O. Stetter, Nature 300, 258-260 (1982).

  6. Pyrodictium occultum

  7. (K.O. Stetter et al., NATURE 365, 743 – 745 (1993)) K.O.Stetter et al.,Nature 365, 743-745 (1993)

  8. Aquifex pyrophilus

  9. Acidianus infernus

  10. Thermoproteales

  11. Staphylothermus marinus

  12. Pyrococcusfuriosus

  13. Archaeoglobus fulgidus

  14. Methanopyrus kandleri

  15. Pyrolobus fumarii (Growth:90-113°C; Topt:106 °C)

  16. Carl Woese ?

  17. Ignicoccus & Nanoarchaeum 1µm I. N. 100 nm

  18. Comparison of major COGs between N.equitans and other Archaea

  19. Cell association: I.hospitalis + N.equitans3D – reconstruction (EM) U.Küper et al., PNAS 107, 3152 – 3156 (2010).

  20. 100 nm Korarchaeum cryptofilum: Electron Microscopy Gerhard Wanner, LMU Munich

  21. CrenarchaealandeuryarchaealarCOGs in “Korarchaeum cryptofilum“ *COG functional categories: L, Replication, recombination and repair; D, Cell cycle control, cell division, chromosome partitioning; R, Translation, ribosomal structure and biogenesis; T, Transcription. ‡Number of euryarchaeal (Eur) genomes containing that arCOG (out of 27 total). §Number of crenarchaeal (Cr) genomes containing that arCOG (13 total). (J.G. Elkins et al., Proc. Natl. Acad. Sci. U.S.A.105, 8102 – 8107 (2008))

  22. Coworkers: Collaborators: • Elisabeth Blöchl • James G. Elkins • Michael Hohn • Harald Huber • Robert Huber • Reinhard Rachel • Mark D. Adams (Celera) • HolgerJannasch(WHOI) • Mircea Podar (ORNL) • Paul Richardson (JGI) • Gerhard Wanner (LMU)

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