Results
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| Property | Organism | Value | Units | ID | Details |
|---|---|---|---|---|---|
| Concentrations of different microorganisms in human fecal material | bacteria | Table - link | Viable counts × 10^3/gram wet weight | 108512 | J. van Houte, R. J. Gibbons... |
| Percent of human feces that consists of bacteria | bacteria | ~30 | % | 108514 | J. van Houte, R. J. Gibbons... |
| Ratio between Firmicutes and Bacteroidetes (F/B ratio) in feces of European and African children | bacteria | European 2.8±0.06 African 0.47±0.05 | unitless | 111695 | De Filippo C. et al.... |
| Occurrence, concentrations, distribution of the mucosal bacteria, and the percentage of bacteria accessible by FISH | Human Homo sapiens | Table - link | N/A | 112361 | Swidsinski A, Weber J... |
| Concentration in sheep rumenal fluid | Bacteria Streptococcus bovis | 10^6 - 10^7 | CFU/ml | 112507 | Letarov A, Kulikov E.... |
| Minimum bacterial density for bacteriophage exponential replication | Bacteriophage | ~10^4 | cells/ml | 112508 | Letarov A, Kulikov E.... |
| Number of e. coli in colon content | Various | 1e+6 | cells/gram | 102536 | Hartl DL, Dykhuizen DE.... |
| Doubling time in presence and absence of other aerobic bacteria | Bacteria Pseudomonas aeruginosa | 26.1 Presence: 3.63 absence | Hours | 106174 | Tamagnini LM, González... |
| Total microscopic counts in human feces | bacteria | 3.16e+11 (1.01e+11 - 6.3e+11) | organisms/gram wet weight | 108513 | J. van Houte, R. J. Gibbons... |
| Number of prokaryotes in human colon | prokaryote | 7e+13 | cells/organ | 100555 | William B. Whitman,*†... |
| Number of prokaryotes in human colon world-wide | prokaryote | 3.9E+23 | cell | 100558 | William B. Whitman,*†... |
| Passage of digesta through the stomach and small bowel | Human Homo sapiens | ~4 - 6 | hours | 112836 | G. T. Macfarlane and... |
| Time of transit of gut contents through large bowel | Human Homo sapiens | 60 (20 - 140 (range in United Kingdom)) | hours | 112837 | G. T. Macfarlane and... |
| Fraction of bacteria out of faecal solids in persons living on Western diets | Human Homo sapiens | ~55 (equivalent to 18 g of bacterial dry matter) | % | 112838 | G. T. Macfarlane and... |
| Polysaccharidase and glycosidase activities in different fractions of human faeces | Human Homo sapiens | Table - link | N/A | 112840 | G. T. Macfarlane and... |
| Standard Gibbs free energy for reduction of CO2 by H2 (4H2 + 2C02 > CH3COO- + H+ + 2H20) | Generic | -95 | kJ/mol | 112841 | G. T. Macfarlane and... |
| Number of bacteria in the human intestinal tract | Human Homo sapiens | ≤1E+14 | bacteria/intestinal tract | 110957 | Suau A et al., Direct... |
| Number of microbial cells, number of species and total mass in gastrointestinal tract | Human Homo sapiens | total population ~10^14cells: Num. of species ~500-1,000: total mass ~1.5kg | N/A | 112308 | Rubio CA. The Natural... |
| Bacterial counts at various points after two test breakfasts | Human Homo sapiens | Table - link | N/A | 106530 | Berghouse L, Hori S, Hill M... |
| Estimated number of species of land plants | Biosphere | >450,000 | species | 113442 | Pimm SL et al., The ... |