Microbe Identification
Microbe nameStreptococcus constellatus
NCBI Taxonomy ID76860
DescriptionStreptococcus constellatus is a Gram-positive, spherical-shaped microbe that thrives in mesophilic temperatures, categorized as a chemoheterotroph, which means it relies on chemical reactions and external sources for energy and carbon, producing energy through fermentation. This microbe can be found in various body sites across different species, including the human oral cavity, respiratory tract, and gastrointestinal tract, as well as in animals. As a facultative anaerobe, Streptococcus constellatus can survive in both aerobic and anaerobic environments, adapting its metabolism to suit the available oxygen levels.The Gram-positive characteristic of Streptococcus constellatus is due to the presence of a thick peptidoglycan layer in its cell wall, which retains the crystal violet stain during the Gram staining procedure. Its spherical shape is typical of many streptococcal species, allowing for efficient cellular division and growth. As a chemoheterotroph, Streptococcus constellatus requires external sources of carbon and energy, which it obtains by breaking down complex organic molecules.The ability of Streptococcus constellatus to produce energy through fermentation is crucial for its survival in environments with limited oxygen availability. This metabolic flexibility also enables the microbe to inhabit a wide range of ecological niches, from the human mouth to the gastrointestinal tract of animals. Its facultative anaerobic nature allows it to thrive in both aerobic and anaerobic environments, making it a highly adaptable microbe. Streptococcus constellatus has been implicated in various human infections, including abscesses and bacteremia, particularly in individuals with compromised immune systems, and research has shown that this microbe can form biofilms, which are complex communities of microorganisms that adhere to surfaces and are resistant to antimicrobial agents.
Microbe Taxonomy
SuperkingdomBacteria
KingdomEubacteria
PhylumFirmicutes
ClassBacilli
OrderLactobacillales
FamilyStreptococcaceae
GenusStreptococcus
Species constellatus
Subspeciesconstellatus; pharyngis
Microbe Properties
Gram staining propertiesPositive
ShapeCocci
MobilityNot Available
Flagellar presenceNot Available
Number of membranesNot Available
Oxygen preferenceFacultative anaerobe
Optimal temperatureNot Available
Temperature rangeNot Available
HabitatNot Available
Biotic relationshipNot Available
Cell arrangementNot Available
SporulationNot Available
MetabolismSaccharolytic, respiratory or fermentative
Energy sourceNot Available
Host and Biospecimens
HostBody siteBiospecimenData SourceReference
HumanHuman Oral Microbiome Database (HOMD)20624719
HumanPharynxBacDive34718743
HumanGingivaSubgingival plaqueDisbiome31480468
HumanOral cavitySalivaDisbiome19587155