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A new phylum of Archaea represented by a nanosized hyperthermophilic symbiont
TLDR
The cultivation of a new nanosized hyperthermophilic archaeon from a submarine hot vent is reported, which will provide insight into the evolution of thermophily, of tiny genomes and of interspecies communication.
Pyrococcus furiosus sp. nov. represents a novel genus of marine heterotrophic archaebacteria growing optimally at 100°C
Ten strains representing a novel genus of marine thermophilic archaebacteria growing at between 70 and 103°C with an optimal growth temperature of 100°C and a doubling time of only 37 min were
Thermotoga maritima sp. nov. represents a new genus of unique extremely thermophilic eubacteria growing up to 90°C
TLDR
A novel type of bacterium has been isolated from various geothermally heated locales on the sea floor with a unique sheath-like structure and monotrichous flagellation that clearly belong to the eubacteria, although no close relationship to any known group could be detected.
The genome of Nanoarchaeum equitans: Insights into early archaeal evolution and derived parasitism
TLDR
The hyperthermophile Nanoarchaeum equitans is an obligate symbiont growing in coculture with the crenarchaeon Ignicoccus, and represents a basal archaeal lineage and has a highly reduced genome.
Hyperthermophilic archaea are thriving in deep North Sea and Alaskan oil reservoirs
HOT springs and hydrothermal vents harbour hyperthermophilic archaea and bacteria with the highest growth temperatures known1–6. Here we report the discovery of high concentrations of
Structural basis of enzyme encapsulation into a bacterial nanocompartment
TLDR
It is shown, using X-ray crystallographic, biochemical and EM experiments, that a widespread family of conserved bacterial proteins, the linocin-like proteins, form large assemblies that function as a minimal compartment to package enzymes.
Pyrolobus fumarii, gen. and sp. nov., represents a novel group of archaea, extending the upper temperature limit for life to 113°C
TLDR
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").
Ferroglobus placidus gen. nov., sp. nov., a novel hyperthermophilic archaeum that oxidizes Fe2+ at neutral pH under anoxic conditions
TLDR
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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