Nitrogen Fixation at 92°C by a Hydrothermal Vent Archaeon

@article{Mehta2006NitrogenFA,
  title={Nitrogen Fixation at 92°C by a Hydrothermal Vent Archaeon},
  author={Mausmi P. Mehta and J. Baross},
  journal={Science},
  year={2006},
  volume={314},
  pages={1783 - 1786}
}
  • Mausmi P. Mehta, J. Baross
  • Published 2006
  • Biology
  • Science
  • A methanogenic archaeon isolated from deep-sea hydrothermal vent fluid was found to reduce N2 to NH3 at up to 92°C, which is 28°C higher than the current upper temperature limit of biological nitrogen fixation. The 16S ribosomal RNA gene of the hyperthermophilic nitrogen fixer, designated FS406-22, was 99% similar to that of non–nitrogen fixing Methanocaldococcus jannaschii DSM 2661. At its optimal growth temperature of 90°C, FS406-22 incorporated 15N2 and expressed nifH messenger RNA. This… CONTINUE READING
    Cultivation of a thermophilic ammonia oxidizing archaeon synthesizing crenarchaeol.
    • 563
    • Highly Influenced
    • PDF
    Presence and activity of anaerobic ammonium-oxidizing bacteria at deep-sea hydrothermal vents
    • 154
    • PDF
    Archaea in biogeochemical cycles.
    • 232
    • PDF
    Nitrogen cycle of the open ocean: from genes to ecosystems.
    • 259
    • PDF
    Emerging patterns of marine nitrogen fixation
    • 297
    • PDF
    The microbial nitrogen cycle.
    • 161

    References

    Publications referenced by this paper.
    SHOWING 1-10 OF 30 REFERENCES
    Biological nitrogen fixation.
    • 1,190
    The microbiology of deep-sea hydrothermal vents
    • 161
    Low 15N/14N in hydrothermal vent animals: ecological implications
    • G. Rau
    • Environmental Science
    • 1981
    • 100