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16S rRNA RefSeq: V15.22    Genomic RefSeq: V9.15
Genus: Gemella
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No Notes
percent abundance
SubPSupPKGBMHPSVTHPTTDST
Avg0.7010.6134.3647.2674.0350.8432.2372.2180.9350.007
Stdev1.4301.2284.2056.5474.4610.6532.4962.4340.8610.053
No Notes
percent abundance
SubPSupPKGBMHPSVTHPTTDST
Avg0.8350.6165.8598.1174.5221.0302.4782.7421.2320.003
10thp0.0720.0330.6081.6031.1000.0710.2980.2140.1480.000
90thp1.4141.20911.60816.41110.0451.9896.6966.1413.6470.000
Stdev1.7631.0544.9636.3724.4870.9512.7973.2391.2700.012
Prev92.20894.805100.000100.000100.00092.20898.701100.00096.1049.091
No Notes
percent abundance
SubPSupPKGBMHPSVTHPTTDST
Avg0.4550.4542.6425.2812.4820.6151.7971.5450.7100.000
10thp0.0290.0230.2850.7000.5140.1290.1590.1620.0630.000
90thp0.8230.7745.73712.1474.8701.2014.6353.2081.5070.000
Stdev0.7970.9182.6655.3522.7410.4802.0282.0190.7340.002
Prev90.54190.54199.32499.32499.32496.62297.29797.97397.2971.399
From: Dewhirst 35x9 data (not published yet)
No Notes
percent abundance
SubPSupPKGBMHPSVTHPTTDNS
Avg0.6860.6322.8483.8742.0241.7681.6651.9181.1320.023
10thp0.0160.0600.2080.3250.3370.1590.2040.1670.1780.000
90thp1.6541.4749.2329.4234.5404.1683.8986.2502.5250.070
Stdev1.0080.9453.5146.3581.8831.8862.2322.7891.0070.066
Prev100.000100.000100.000100.000100.000100.000100.000100.000100.00030.000
Overview: There are five species of Gemella in the human oral microbiome: G. bergeri, G. haemolysans, G. morbillorum, G. sanguinis, and G. sp. HMT 928.

Ecological role/importance in health and disease: Gemella species reach their highest relative abundance on the buccal mucosa and keratinized gingiva, where G. haemolysans makes up 5-8% of the community. G. sanguinis makes up about 1% of the tongue dorsum microbiota and G. haemolysans and G. morbillorum together make up 0.5-1% of dental plaque in healthy individuals. Gemella species can be opportunistic pathogens; G. morbillorum and, less frequently, G. haemolysans are detected in endocarditis and other opportunistic infections (García López and Martín-Galiano 2020).