TABLE 1.
Temperature ranges of growth and swimming for 15 selected species of the genus Thermococcus
| Thermococcus species | Culture collection no. | Temp range (°C) for: |
Avg/maximal swimming speed [μm/s] at 85°Ca |
TEM analysis of cell appendagesb | ||
|---|---|---|---|---|---|---|
| Growthc | Swimming | In SMES | In MAYTP | |||
| T. acidaminovorans | DSM 11906T | 55–90 | No cell appendages | |||
| T. aegaeus | DSM 12767T | 70–90 | 40–95 | 16/35 | No growth in MAYTP | 1–5 flagella (width, 10–11 nm) |
| T. alcaliphilus | DSM 10322T | 56–90 | 40–95 | 16/27 | 13/24 | 1–10 flagella (width, 9–11 nm) per cell |
| T. atlanticus | DSM 15226T | 70–90 | 25–95 | 21/36 | 1 to 5 flagella (width, 11–13 nm) per cell plus rarely thinner filaments (8 nm) in SMES; no cell appendages in MAYTP | |
| T. celer | DSM 2476T | 50–90 | 25–95 | 46/83 | 110/175 | Polar tuft of flagella (width, 11–12 nm) in MAYTP; 1–5 flagella in SMES |
| T. celericrescens | DSM 17994T | 50–85 | 25–95 | 83/177 | 52/182 | Polar tuft of flagella (width, 9–12 nm) |
| T. chitonophagus | DSM 10152T | 60–95 | 55–95 | 213/343 | 113/182 | Polar tuft of flagella (width, 11–12 nm) |
| T. coalescens | DSM 16538T | 57–90 | 40–95 | 19/32 | 1–5 flagella (width, 12 nm) in SMES; no cell appendages in MAYTP | |
| T. gorgonarius | DSM 10395T | 68–95 | Many polytrichous cell appendages (width, 5–8 nm) | |||
| T. guaymasensis | DSM 11113T | 56–90 | 25–95 | 67/165 | Polar tuft of flagella (width, 10–11 nm) plus rarely thinner filaments (6–7 nm) in SMES; in MAYTP only the thin filaments | |
| T. kodakarensis | JCM 12380T | 60–100 | 25–95 | 72/166 | 68/153 | Polar tuft of flagella (width, 10–12 nm) in MAYTP; in SMES 1–5 flagella |
| T. pacificus | DSM 10394T | 70–95 | 1–5 polytrichous appendages (width, 6–7 nm) plus additional thinner cell surface structures | |||
| T. radiotolerans | DSM 15228T | 55–95 | 25–95 | 20/30 | 19/34 | 1–3 curled flagella (width, 11–12 nm), plus thinner filaments (5–6 nm) in MAYTP |
| T. stetteri | DSM 5262T | 55–98 | 25–95 | 65/108 | 155/322 | Polar tuft of flagella (width, 10–12 nm) plus additional thinner filaments |
| T. thioreducens | DSM 14981T | 55–94 | 50–95 | 21/43 | 15/27 | Polar tuft of flagella (width, 10–12 nm) plus thinner filaments (6–7 nm) |
a
Determined at least in triplicate for cells grown in poor SMES medium and rich MAYTP medium. Swimming speeds at temperatures other than 85°C may be found in Fig. S1 in the supplemental material.
b
TEM analyses used at least 15 cells for each species; examples are given in Fig. S3 in the supplemental material.