Human Oral Microbiome Taxon Description
Gemella morbillorum
Human Oral Taxon ID (HOT):046Synonym:
Diplococcus morbillorum
Peptostreptococcus morbillorum
Streptococcus morbillorum
Named - Cultured
Type Strain:
ATCC 27824
More info at StrainInfo
NCBI Taxonomy ID:
16S rRNA Sequence:
Y13366  [Entrez Link]
L14327  [Entrez Link]
PubMed Search:151  [PubMed Link]
16S rRNA Alignment: View Alignment         Download Alignment         NoteNucleotide Search:661  [Entrez Nucleotide Link]
Phylogeny: View 16S rRNA tree         View all Tree filesProtein Search:3184  [Entrez Protein Link]
Prevalence by Molecular Cloning:
Clones seen = 546 / 34879 = 1.57%
Rank Abundance = 7
Genome Sequence
1 View Genome
Hierarchy Structure:    Hide or show the hierarchy structure
General Information:
This species was formerly known as Streptococcus morbillorum but was moved to Gemella on the basis of phylogenetic analysis based on 16S rRNA sequence comparisons.
Facultative anaerobe producing small (<0.5 mm diameter) colonies after two days aerobic growth on Blood Agar plates. It is reported that anaerobic incubation may be required for growth on initial isolation but that strains become aerotolerant on subsequent subcultures.
Phenotypic Characteristics:
Gram positive cocci found in pairs or short chains. Weakly fermentative and generally unreactive in commonly used biochemical and physiological tests and thus difficult to definitively identify by phenotypic means; molecular identification is recommended [1].
Prevalence and Source:
Found in dental plaque, on the tongue and has been isolated from periodontal pockets in periodontitis and exudate from pericoronitis associated with erupting third molars
Disease Associations:
Although found as part of the normal microbiota of the mouth and gastrointestinal orogenital tracts, Gemella morbillorum is capable of causing a wide range of infections. Most of these can be attributed to spread via the bloodstream and thus infective endocarditis is the commonest. Other infections include meningitis, brain, liver and lung abscess, osteomyelitis and septic thrombophlebitis.
PubMed database:
[1] La Scola B, Raoult D. Molecular identification of Gemella species from three patients with endocarditis. J Clin Microbiol. 1998 Apr;36(4):866-71  [PubMed]
Curator:  William Wade
Creation Info:   2007-12-28Latest Modification:  tsute,  2009-05-13 09:41:58

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