Ferroglobus placidus gen. nov., sp. nov., A novel hyperthermophilic archaeum that oxidizes Fe2+ at neutral pH under anoxic conditions.
A novel coccoid, anaerobic, Fe2+-oxidizing archaeum was isolated from a shallow submarine hydrothermal system at Vulcano, Italy. In addition to ferrous iron, H2 and sulfide served as electron donors. NO3- was used as electron acceptor. In the presence of H2, also S2O32- could serve as electron acceptor. The isolate was a neutrophilic hyperthermophile that grew between 65 degrees C and 95 degrees C. It represents a novel genus among the Archaeoglobales that we name Ferroglobus. The type species is Ferroglobus placidus (DSM 10642).
Hafenbradl
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Lehrstuhl für Mikrobiologie, Universitätsstrasse 31, D-93053 Regensburg, Germany. doris.hafenbrad@biologie.uni-regensburg.de
Keller
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Dirmeier
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Rachel
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Rossnagel
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P
Burggraf
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Huber
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Stetter
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D001105:Archaea / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000648:ultrastructure; D001431:Bacteriological Techniques; D001482:Base Composition; D004269:DNA, Bacterial / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000378:metabolism; D008055:Lipids / Q000032:analysis; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000032:analysis; D012965:Sodium Chloride / Q000378:metabolism
D004269:DNA, Bacterial; D008055:Lipids; D012336:RNA, Ribosomal, 16S; D012965:Sodium Chloride; D007501:Iron