Hylemonella is a genus of Gram-negative bacteria belonging to the family Enterobacteriaceae within the order Enterobacterales. It was first officially described and proposed in 2020.
Etymology
The genus name Hylemonella was proposed in honor of Dr. Philip B. Hylemon, an American microbiologist recognized for his significant contributions to the understanding of microbial metabolism, particularly involving bile acids and steroids. The suffix "-ella" is a common diminutive suffix frequently used in bacteriological nomenclature for genus names.
Taxonomy
- Kingdom: Bacteria
- Phylum: Proteobacteria
- Class: Gammaproteobacteria
- Order: Enterobacterales
- Family: Enterobacteriaceae
- Genus: Hylemonella
- Type Species: Hylemonella gracilis
Characteristics
Members of the genus Hylemonella are typically characterized as Gram-negative, facultatively anaerobic, non-spore-forming rod-shaped bacteria. Like other Enterobacteriaceae, they are metabolically diverse, capable of both respiratory and fermentative metabolism. Specific biochemical profiles and unique phenotypic characteristics distinguish them from other closely related genera.
Habitat and Significance
Hylemonella species, most notably Hylemonella gracilis, have been isolated from various sources, including the human gut microbiome. Given its relatively recent discovery, the precise ecological role and clinical significance of Hylemonella species are subjects of ongoing scientific investigation. As a member of the Enterobacteriaceae, a family known for encompassing both commensal organisms and opportunistic pathogens, future research will aim to clarify its specific impact on host health and its potential involvement in disease states.
Discovery
The genus Hylemonella and its type species, Hylemonella gracilis, were formally described and validated by Chon et al. in 2020, based on comprehensive genomic and phylogenetic analysis.