Competition for ammonia influences the structure of chemotrophic communities in geothermal springs.

  title={Competition for ammonia influences the structure of chemotrophic communities in geothermal springs.},
  author={Trinity L Hamilton and Evangeline Koonce and Alta E. Howells and Jeff R. Havig and Talia Jewell and Jos{\'e} R. de la Torre and John W Peters and Eric S Boyd},
  journal={Applied and environmental microbiology},
  volume={80 2},
Source waters sampled from Perpetual Spouter hot spring (pH 7.03, 86.4°C), Yellowstone National Park, WY, have low concentrations of total ammonia, nitrite, and nitrate, suggesting nitrogen (N) limitation and/or tight coupling of N cycling processes. Dominant small-subunit rRNA sequences in Perpetual Spouter source sediments are closely affiliated with the ammonia-oxidizing archaeon "Candidatus Nitrosocaldus yellowstonii" and the putatively nitrogen-fixing (diazotrophic) bacterium Thermocrinis… CONTINUE READING
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