Roseomonas aquatica sp. nov., isolated from drinking water

Area of Science:

• Microbiology
• Bacteriology
• Environmental microbiology

Background:

• The genus Roseomonas comprises Gram-negative bacteria found in various environments.
• Understanding microbial diversity in drinking water distribution systems is crucial for public health.
• Previous studies have characterized several Roseomonas species, but gaps remain in understanding their ecological roles.

Purpose of the Study:

• To characterize a novel bacterial isolate from a drinking water distribution system.
• To determine the phylogenetic and taxonomic position of the novel isolate.
• To propose a new species within the genus Roseomonas.

Main Methods:

• Polyphasic taxonomic analysis including phenotypic, genotypic, and phylogenetic methods.
• 16S rRNA gene sequencing for phylogenetic analysis.
• DNA G+C content determination.

Main Results:

• Strain TR53(T) is a Gram-negative, non-motile, non-spore-forming, strictly aerobic coccobacillus.
• Phylogenetic analysis based on 16S rRNA gene sequences showed highest similarity to Roseomonas genomospecies 5 (95.7%).
• The DNA G+C content was determined to be 68.6 mol%.

Conclusions:

• Strain TR53(T) represents a novel species of the genus Roseomonas.
• The proposed name for this new species is Roseomonas aquatica sp. nov.
• The type strain is TR53(T) (=CECT 7131(T)=JCM 13556(T)).