Diversity, abundance, and potential activity of nitrifying and nitrate-reducing microbial assemblages in a subglacial ecosystem.

@article{Boyd2011DiversityAA,
  title={Diversity, abundance, and potential activity of nitrifying and nitrate-reducing microbial assemblages in a subglacial ecosystem.},
  author={Eric S Boyd and Rachel K. Lange and Andrew C. Mitchell and Jeff R. Havig and Trinity L Hamilton and Melissa J Lafreni{\`e}re and Everett L. Shock and John W Peters and Mark L Skidmore},
  journal={Applied and environmental microbiology},
  year={2011},
  volume={77 14},
  pages={4778-87}
}
Subglacial sediments sampled from beneath Robertson Glacier (RG), Alberta, Canada, were shown to harbor diverse assemblages of potential nitrifiers, nitrate reducers, and diazotrophs, as assessed by amoA, narG, and nifH gene biomarker diversity. Although archaeal amoA genes were detected, they were less abundant and less diverse than bacterial amoA, suggesting that bacteria are the predominant nitrifiers in RG sediments. Maximum nitrification and nitrate reduction rates in microcosms incubated… CONTINUE READING

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