Overview
Jeotgalicoccus halophilus is a species of bacteria placed within a group related to staphylococci. Members of this species are Gram‑positive, non‑spore‑forming cocci that were characterized from salt‑rich substrates. The generic name Jeotgalicoccus refers to a connection with salted fermented foods (jeotgal), reflecting the environments where related strains have often been found.
Characteristics
The cells are round in shape and occur singly, in pairs or small clusters. As a Gram‑positive organism, they retain the crystal violet stain in standard microscopy. Typical laboratory descriptions note catalase activity in the genus and a generally nonmotile lifestyle. Key physiological traits include moderate halotolerance and adaptability to aerobic or microaerophilic conditions.
- Cell form: coccoid
- Gram reaction: Gram‑positive
- Salt tolerance: growth reported from 0.1% to 16% NaCl
- Taxonomic family: Staphylococcaceae
Growth, ecology and importance
This bacterium is described as halotolerant, meaning it tolerates fairly high salt concentrations but does not require extreme salinity to grow. Such traits make it relevant to the microbiology of salted foods, marine environments and saline soils. Though not widely known as a pathogen, isolates are of interest for studying salt adaptation, community composition of fermented seafoods and potential applications where salt‑resistant microbes or enzymes are useful.
Taxonomy and distinctions
Within bacterial classification, Jeotgalicoccus is distinct from but related to the better‑known genus Staphylococcaceae group members. Species in this genus are differentiated by a combination of genetic markers, physiological tests and salt tolerance profiles. The species name halophilus literally means "salt‑loving," indicating its notable saline tolerance compared with many other coccoid bacteria.
Practical notes
In practice, identification relies on laboratory culture, microscopy and molecular methods. Researchers examining saline food fermentations or saline environment microbiomes may encounter J. halophilus and related species; their presence can inform understanding of community structure and salt resilience among bacteria.