TABLE 2.
Genus and species expansion in the family Enterobacteriaceae, 1974–2020
| Source | Yr | No. of genera | No. of species | % Increasea | Reference |
|---|---|---|---|---|---|
| Bergey’s Manual of Determinative Bacteriology (8th ed.) | 1974 | 12 | 36 | −32b | 1 |
| Approved List | 1980 | 18 | 80 | 122 | 37 |
| Bergey’s Manual of Systematic Bacteriology | 1984 | 20 | 76 | −5 | 1 |
| Bergey’s Manual of Determinative Bacteriology (9th ed.) | 1994 | 30 | 107 | 29 | 1 |
| Topley & Wilson’s Microbiology & Microbial Infections (10th ed.) | 2005 | 40 | 150 | 41 | 1 |
| LPSNc | 2020 | 68 | 355 | 136 |
a
Based on number of species from the previous source or edition.
b
From Rahn, 1937 (6).
c
LPSN, List of Prokaryotic Names with Standing in Nomenclature (https://www.bacterio.net/).