Metabolic versatility of the nitrite-oxidizing bacterium Nitrospira marina and its proteomic response to oxygen-limited conditions.

ABSTRACT: The genus Nitrospira is the most widespread group of nitrite-oxidizing bacteria and thrives in diverse natural and engineered ecosystems. Nitrospira marina Nb-295^T was isolated from the ocean over 30 years ago; however, its genome has not yet been analyzed. Here, we investigated the metabolic potential of N. marina based on its complete genome sequence and performed physiological experiments to test genome-derived hypotheses. Our data confirm that N. marina benefits from additions of undefined organic carbon substrates, has adaptations to resist oxidative, osmotic, and UV light-induced stress and low dissolved pCO₂, and requires exogenous vitamin B₁₂. In addition, N. marina is able to grow chemoorganotrophically on formate, and is thus not an obligate chemo

SUBMITTER: Bayer B 

PROVIDER: S-EPMC8115632 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature