S
Siegfried Burggraf
Researcher at University of Regensburg
Publications - 22
Citations - 3250
Siegfried Burggraf is an academic researcher from University of Regensburg. The author has contributed to research in topics: Hyperthermophile & Medicine. The author has an hindex of 18, co-authored 19 publications receiving 3120 citations.
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Journal ArticleDOI
Pyrolobus fumarii, gen. and sp. nov., represents a novel group of archaea, extending the upper temperature limit for life to 113 degrees C
E. Blöchl,Reinhard Rachel,Siegfried Burggraf,Doris Hafenbradl,Holger W. Jannasch,Karl O. Stetter +5 more
TL;DR: A novel, irregular, coccoid-shaped archaeum was isolated from a hydrothermally heated black smoker wall at the TAG site at the Mid Atlantic Ridge and described here a new genus, which is named Pyrolobus (the "fire lobe").
Journal ArticleDOI
Aquifex pyrophilus gen. nov. sp. nov., Represents a Novel Group of Marine Hyperthermophilic Hydrogen-Oxidizing Bacteria
Robert Huber,Thomas Wilharm,Dagmar Huber,Antonio Trincone,Siegfried Burggraf,Hans-Helmut König,Rachel Reinhard,Ingrid Rockinger,Hans-Christian Fricke,Karl O. Stetter +9 more
TL;DR: A new genus is described here a new genus, which will represent the deepest phylogenetic branch-off within the Bacteria domain, Aquifex (the “water-maker”), based on the physiological and molecular properties of the new isolates.
Journal ArticleDOI
Pyrobaculum aerophilum sp. nov., a novel nitrate-reducing hyperthermophilic archaeum.
P. Völkl,Robert Huber,Elisabeth Drobner,Reinhard Rachel,Siegfried Burggraf,Antonio Trincone,Karl O. Stetter +6 more
TL;DR: A rod-shaped hyperthermophilic archaeum has been isolated from a boiling marine water hole at Maronti Beach, Ischia, Italy as discussed by the authors, which is described as a new species, which we name Pyrobaculum aerophilum (type strain: IM2; DSM 7523).
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Ferroglobus placidus gen. nov., sp. nov., a novel hyperthermophilic archaeum that oxidizes Fe2+ at neutral pH under anoxic conditions
Doris Hafenbradl,Martin Keller,Reinhard Dirmeier,Reinhard Rachel,P. Rossnagel,Siegfried Burggraf,Harald Huber,Karl O. Stetter +7 more
TL;DR: A novel coccoid, anaerobic, Fe2+-oxidizing archaeum was isolated from a shallow submarine hydrothermal system at Vulcano, Italy and represents a novel genus among the Archaeoglobales that is named Ferroglobus.
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A Phylogenetic Analysis of Aquifex pyrophilus
TL;DR: The 16S rRNA of the bacterion Aquifex pyrophilus, a microaerophilic, oxygen-reducing hyperthermophile, has been sequenced directly from the the PCR amplified gene, andylogenetic analyses show the Aq.