# Complete genome sequence of the multidrug-resistant Citrobacter portucalensis strain KOS1-1 isolated from a wastewater treatment plant

**Authors:** Shahjahon Begmatov, Andrey L. Rakitin, Alexey V. Beletsky, Andrey V. Mardanov, Nikolai V. Ravin

PMC · DOI: 10.1128/mra.01416-25 · 2026-02-19

## TL;DR

This paper presents the full genome sequence of a drug-resistant Citrobacter portucalensis strain found in Moscow wastewater.

## Contribution

The study provides the first complete genome sequence of a multidrug-resistant Citrobacter portucalensis strain from a wastewater source.

## Key findings

- A multidrug-resistant Citrobacter portucalensis strain was isolated from Moscow wastewater.
- The complete genome sequence of strain KOS1-1 was determined.
- The genome data may aid in understanding resistance mechanisms in environmental bacteria.

## Abstract

The emergence of multidrug-resistant bacteria is a major concern from both epidemiological and ecological perspectives. Studying these microorganisms is crucial for developing prevention strategies. We report the complete genome sequence of the multidrug-resistant Citrobacter portucalensis strain KOS1-1, isolated from wastewater in the city of Moscow.

## Linked entities

- **Species:** Citrobacter portucalensis (taxon 1639133)

## Full-text entities

- **Species:** Citrobacter portucalensis (species) [taxon 1639133]

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Source: https://tomesphere.com/paper/PMC12981123