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Property Organism Value Units ID Details
Mean microbial cell volume in deep old marine sediments Microbes 0.042 μm^3 115532 Braun S et al., Size...
Fraction of the microbial surface community that dies within a few mm to cm of burial Microbes ~90 % 115533 Braun S et al., Size...
Relative abundance of microbial populations and amount of rRNA extracted from ruminal and dual-flow continuous culture fermenter samples Microbes Table - link N/A 112832 Ziemer CJ et al., Comparison...
Mean carbon content of total microbial cells in the sediment at sub-seafloor deposits at Landsort Deep, Baltic Sea Microbes at the sea floor 350μg C/cm^3: ~40m beneath sea floor <5 μg C/cm^3 115326 Braun S et al., Size...
Cell-specific carbon density in the sediment at sub-seafloor deposits at Landsort Deep, Baltic Sea Microbes sea floor depth 200fg C/µm^3: ~10m beneath sea floor 1000fg C/µm^3: ~40m beneath sea floor 600 fg C/µm^3 115327 Braun S et al., Size...
Cell volumes of microorganisms commonly found in natural environments such as soils, freshwater lakes and rivers, estuarine and brackish waters, coastal and nearshore marine waters, or pelagic marine waters Microbes 0.05 - 0.5 µm^3 115344 Braun S et al., Size...
Temp. at which microbes were actively respiring in brine channels in Arctic sea ice prokaryote -20 °C 108050 Price PB, Sowers T. ...
Fraction of living biomass in global oceans that are marine microbes Biosphere >90 % 113509 Weynberg KD, Allen MJ...
Genome sizes and number of predicted proteins of wild type and engineered prokaryotic microbes prokaryote Table - link N/A 108690 Mampel J, Buescher JM...
Number of microbial cells in human body Human Homo sapiens 10^14 (see BNID 113000 for more updated value of 3.8x10^13) microbial cells (mostly bacteria)/human body 102392 Savage DC. Microbial...
Fraction of the world’s photosynthetic activity that is accounted for by the phytoplankton component of marine microbes Biosphere ~50 % 113510 Weynberg KD, Allen MJ...
Ratio between number of microbial cells and number of animal cells in body Human Homo sapiens 10 (outdated, updated value is 1.3, see comments section) unitless 102391 Savage DC. Microbial...
Fraction of all microbial cells that inhabit the deep biosphere (accounting for a third to half of all living biomass carbon on Earth) Biosphere 94 % of all microbial cells 115328 Braun S et al., Size...
Cell specific carbon content in marine sediments Biosphere (Parkes et al., 1994) 65 fgC/cell: (Whitman et al.,1998) 86 fgC/cell 115337 Braun S et al., Size...
Fraction of phytoplankton (that contribute approximately half of the global productivity) mass out of total mass in photosynthetic organisms worldwide Biosphere <0.5 % 113987 Kaplan A. Cyanophages:...
Ratio between number of genes in human gut “metagenome” and human eukaryotic genome Human Homo sapiens >100 unitless 111317 De Filippo C. et al....
Origins and emerging consensus of the 10:1 ratio of virus abundance to bacteria abundance in aquatic systems - from freshwater lakes to the global oceans Biosphere Table - link N/A 112654 Charles H. Wigington et al....
Variation in the peptide chain elongation rate and the number of active ribosomes in the cell per one amino acid in synthesised proteins in various microbes Various Table - link N/A 107194 Karpinets TV, Greenwood DJ...
Fraction of faecal solids that is bacteria Human Homo sapiens 54.7 (±1.7) % 108285 Stephen AM, Cummings...
Amount of bacteria in soil Biosphere 10^8 to 10^9 cfu/g soil 107505 Topley and Wilson's ...