Microbe Identification
Microbe namePorphyromonas gingivalis
NCBI Taxonomy ID837
DescriptionEubacterium hallii is a gram-positive, rod-shaped microbe that thrives in mesophilic temperatures, classified as a chemoheterotroph, and can be found in various body sites across different species, including the gut, skin, and respiratory tract, and is an obligate anaerobe. The gram-positive characteristic indicates that the microbe's cell wall retains the crystal violet stain used in the gram staining procedure, due to the presence of a thick peptidoglycan layer. Its rod-shaped morphology allows it to maintain a large surface area, facilitating the exchange of nutrients and waste products. As a mesophilic microbe, Eubacterium hallii grows best in temperatures ranging from 20-45°C, making it well-suited to the human body's normal temperature range.As a chemoheterotroph, Eubacterium hallii relies on chemical reactions to obtain energy and cannot produce its own food, instead relying on the breakdown of complex molecules. This microbe can inhabit various body sites, including the gastrointestinal tract, skin, and respiratory system, where it plays a role in the fermentation of complex carbohydrates and the production of short-chain fatty acids. The obligate anaerobic nature of Eubacterium hallii means that it is unable to survive in the presence of oxygen, and requires a strict anaerobic environment to grow. Eubacterium hallii has been implicated in the production of certain vitamins, such as vitamin K and biotin, and has been shown to have potential health benefits, including the modulation of the immune system and the maintenance of a healthy gut microbiome, with research suggesting that it may play a role in the treatment of certain diseases, including inflammatory bowel disease.
Microbe Taxonomy
SuperkingdomBacteria
KingdomEubacteria
PhylumBacteroidetes
ClassBacteroidia
OrderBacteroidales
FamilyPorphyromonadaceae
GenusPorphyromonas
Species gingivalis
Subspeciesshermanii
Microbe Properties
Gram staining propertiesNegative
ShapeBacilli
MobilityNo
Flagellar presenceNo
Number of membranes2
Oxygen preferenceAnaerobe
Optimal temperature37
Temperature rangeMesophilic
HabitatHostAssociated
Biotic relationshipFree living
Cell arrangementNot Available
SporulationNonsporulating
MetabolismNot Available
Energy sourceNot Available
Host and Biospecimens
HostBody siteBiospecimenDetailsData SourceReference
HumanNot AvailableHuman Oral Microbiome Database (HOMD)20624719
HumanGingivaNot AvailableBacDive34718743
HumanLarge intestineFecesNot AvailableDisbiome31971861
HumanOral cavitySalivaNot AvailableDisbiome31216300
HumanGingivaSubgingival plaqueNot AvailableDisbiome25398868