# Genome sequence of Roseovarius pacificus strain IR27, a denitrifying bacterium from anoxic marine sediments with multiple methylamine oxidation pathways

**Authors:** Isabel M. L. Rigutto, Thomas E. Noël, Theo A. van Alen, Geert Cremers, Mike S. M. Jetten

PMC · DOI: 10.1128/mra.00884-25 · 2025-11-24

## TL;DR

This paper presents the genome sequence of a bacterium that can survive in oxygen-free marine sediments by using methylamine and nitrous oxide.

## Contribution

The study provides a new genome sequence with genes for denitrification and methylamine oxidation in an anoxic marine bacterium.

## Key findings

- The genome includes genes for denitrification and monomethylamine oxidation.
- The chromosome is 3,527,725 bp with 62.56% GC content.
- A plasmid of 272,010 bp with 59.18% GC content was also identified.

## Abstract

We report the draft genome sequence of Roseovarius pacificus strain IR27, isolated from anoxic marine sediments on monomethylamine and nitrous oxide. The assembled chromosome is 3,527,725 bp (62.56% GC), and the plasmid is 272,010 bp (59.18% GC). The genome contains denitrification as well as monomethylamine oxidation genes.

## Linked entities

- **Chemicals:** monomethylamine (PubChem CID 6329), nitrous oxide (PubChem CID 948)
- **Species:** Roseovarius pacificus (taxon 337701)

## Full-text entities

- **Chemicals:** methylamine (MESH:C027451), nitrous oxide (MESH:D009609)

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Source: https://tomesphere.com/paper/PMC12798041