Overview
Jeotgalicoccus marinus is a bacterial species known from marine environments. It is classified as a Gram-positive organism and has a spherical (coccoid) cell shape. The species is described as moderately halophilic, meaning it prefers or tolerates salty conditions, and is facultatively anaerobic: it can grow with oxygen but is also able to survive or grow when oxygen is limited.
Key characteristics
Typical features used to recognize this species include microscopic morphology, staining reactions and growth preferences. In laboratory descriptions it is often noted as:
- Gram-positive in cell wall structure, showing the typical thick peptidoglycan layer.
- Coccoid cells, appearing round or nearly spherical under the microscope.
- Facultative anaerobic metabolism, able to use oxygen when present and to grow under reduced-oxygen conditions.
- Moderate halophily: growth at elevated salinities greater than non-halotolerant bacteria but lower than extreme halophiles.
Ecology and isolation
Jeotgalicoccus marinus was originally isolated from a sea urchin collected in the South China Sea. Such isolates are typically obtained by culturing tissue or surface swabs on media that support marine bacteria and contain salt levels approximating seawater. Researchers then confirm identity through biochemical testing and genetic sequencing, commonly using 16S rRNA gene comparison.
Taxonomy and identification
The species belongs to the genus Jeotgalicoccus, a group of bacteria that includes several halotolerant and halophilic species found in fermented foods, marine habitats and animal-associated microbiota. Formal identification relies on a combination of phenotypic tests and molecular methods; descriptions and authoritative strain records can be consulted in curated databases or taxonomic papers (species record, culture collections).
Importance and potential uses
While Jeotgalicoccus marinus is not known as a human pathogen, its adaptation to saline and marine niches makes it of interest for ecological studies of marine invertebrate microbiomes and for research into salt-adapted enzymes and metabolites. Studies often explore how such bacteria interact with their hosts and with other members of marine microbial communities (sea urchin associations, South China Sea).
Notable distinctions and research notes
This species is distinguished from related coccoid genera by a set of genetic and phenotypic characteristics established in taxonomic descriptions. Laboratory reports emphasize careful handling of marine isolates and appropriate salt concentrations in media; for further technical details and culture conditions consult specialized microbiology resources and culture repositories (morphology notes, physiology, oxygen use).