Table 4.
Novel lithotrophic SRB isolates from soda lakes (type strains are in bold).
| Strain number | Source | Enrichment conditions (pH 10) | Key properties | Affiliation | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lake | Area | e-donor/ C source |
e-acceptor | Total Na+ (M) | Autotrophy | Dismutation | pH range (optimum) | Maximal salt-tolerance M Na+ | μmax h−1 | ||
| ASO4-1 | Tanatar-1 | Kulunda Steppe (Altai, Russia) |
Formate/ | Sulfate | 0.6 | 2 Strains | + | 8.0–10.5 (9.3–10.0) | 1.3–2.3 | 0.042–0.055 | Desulfonatronum |
| ASO4-2 | Picturesque | Pyruvate | Sulfate | ||||||||
| ASO3-6 | Cock soda | EtOH* | Sulfite | ||||||||
| AHT30 | Mixed sample | Formate/ acetate |
Sulfate | ||||||||
| AHT9 | Tanatar-5 | Kulunda Steppe | Formate/ acetate |
Thiosulfate | 0.6 | 4 Strains | + | 8.5–10.5 (9.5–10.0) | 2.0–3.0 | 0.035–0.040 | Desulfonatronovibrio |
| AHT10 | Bitter-1 | Formate/ acetate |
Thiosulfate | 2.0 | |||||||
| ASO4-6 | Cock soda | Formate/ acetate |
Sulfate | 0.6 | |||||||
| ASO3-2 | Tanatar-5 | EtOH* | Thiosulfate | 0.6 | |||||||
| ASO3-3 | Bitter-1 | Formate/ acetate |
Sulfite | 0.6 | |||||||
| AHT20 | Tanatar-5 | Thiosulfate/ acetate |
Thiosulfate | 0.6 | |||||||
| AHT21 | Cock Soda | Thiosulfate/ acetate |
Thiosulfate | 0.6 | |||||||
| AHT22 | Tanatar-5 | Thiosulfate/ acetate |
Thiosulfate | 0.6 | |||||||
| AHT23 | Bitter-1 | Thiosulfate/ acetate |
Thiosulfate | 0.6 | |||||||
| AHT33 | Tanatar-5 | Thiosulfate/ acetate |
Thiosulfate | 0.6 | |||||||
| ASO4-5 | Owens | California | Formate/ acetate |
Sulfate | 2.0 | ||||||
| ASO3-1 | Mixed sediment | Kulunda Steppe | Sulfite | Sulfite | 4.0 | + | + | 8.5–10.6 (9.5–10.0) | 3.5–4.0 | 0.020 | Desulfonatronospira |
| AHT8 | Formate/ acetate |
Thiosulfate | 3.0 | ||||||||
| AHT26 | Thiosulfate/ acetate |
Thiosulfate | 4.0 | ||||||||
| AHT6 | Wadi Natrun | Egypt | Thiosulfate/ acetate |
Thiosulfate | 3.0 | ||||||
*Subsequent isolation of pure cultures was possible after replacement of EtOH by formate.