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Planococcus versutus sp. nov., isolated from soil.

Wah-Seng See-Too1,2, Robson Ee1, Munusamy Madhaiyan3

  • 1Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.

International Journal of Systematic and Evolutionary Microbiology
|December 14, 2016
PubMed
Summary
This summary is machine-generated.

A novel orange-pigmented bacterium, Planococcus versutus sp. nov. L10.15T, was discovered in Antarctic soil. This motile, Gram-positive coccus expands the known diversity within the Planococcus genus.

Keywords:
Antarctic soilPlanococcus versutusquorum quenching

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Area of Science:

  • Microbiology
  • Bacteriology
  • Taxonomy

Background:

  • The genus Planococcus comprises Gram-positive, coccoid bacteria known for their presence in diverse environments.
  • Understanding bacterial diversity is crucial for ecological and biotechnological applications.

Purpose of the Study:

  • To taxonomically characterize a novel bacterium isolated from Antarctic soil.
  • To determine the phylogenetic placement and distinctiveness of the novel isolate within the genus Planococcus.

Main Methods:

  • Isolation using quorum-quenching enrichment medium from Antarctic soil.
  • Phenotypic characterization including growth conditions, pigmentation, and motility.
  • Genotypic analysis using 16S rRNA gene sequencing and average nucleotide identity-MUMmer analysis.
  • Fatty acid, menaquinone, and polar lipid profiling.

Main Results:

  • Strain L10.15T is a Gram-positive, orange-pigmented, motile coccus with broad growth parameters (4-30°C, pH 6-11, 0-15% NaCl).
  • 16S rRNA gene sequence analysis indicated close relation to Planococcus halocryophilus (99.3% similarity), but genomic analysis revealed low relatedness (71.1-81.7% ANI).
  • Distinct fatty acid and menaquinone profiles (major: MK-5, MK-7) and DNA G+C content (39.4%) further supported its novelty.

Conclusions:

  • Strain L10.15T represents a new species within the genus Planococcus.
  • The proposed name for this novel species is Planococcus versutus sp. nov.
  • The type strain is L10.15T (=DSM 101994T=KACC 18918T).