Genome-Enabled Insights into the Ecophysiology of the Comammox Bacterium "Candidatus Nitrospira nitrosa".

ABSTRACT: The recently discovered comammox bacteria have the potential to completely oxidize ammonia to nitrate. These microorganisms are part of the Nitrospira genus and are present in a variety of environments, including biological nutrient removal (BNR) systems. However, the physiological traits within and between comammox and nitrite-oxidizing bacterium (NOB)-like Nitrospira species have not been analyzed in these ecosystems. In this study, we identified Nitrospira strains dominating the nitrifying community of a sequencing batch reactor (SBR) performing BNR under microaerobic conditions. We recovered metagenome-derived draft genomes from two Nitrospira strains: (i) Nitrospira sp. strain UW-LDO-01, a comammox-like organism classified as "Candidatus Nitro

SUBMITTER: Camejo PY 

PROVIDER: S-EPMC5596200 | biostudies-literature | 2017 Sep-Oct

REPOSITORIES: biostudies-literature