Acid tolerance and metabolic potential of comammox and nitrite-oxidizing <i>Nitrospira</i> enriched from soil.

ABSTRACT: Nitrification is the two-step microbial oxidation of ammonia to nitrate via nitrite, and it can contribute to environmental problems in soils. Some nitrifiers have been cultivated from acidic soils at pH <5.5, allowing their metabolic potential and phylogeny to be investigated through genomic analyses. However, the genomic features of the genus Nitrospira remain poorly understood in the context of acid tolerance, despite its wide distribution in acidic environments. This study aimed to characterize the physiology and genomics of acid-tolerant Nitrospira enriched from an acidic soil. Using a metagenomic approach, two closed genomes of Nitrospira were reconstructed: a complete ammonia-oxidizing (comammox) bacterium and a nitrite-oxidizing bacterium (NOB). Both enriched <

SUBMITTER: Takahashi Y 

PROVIDER: S-EPMC12516955 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature