TABLE 1.
Anaerobic growth tests of sulfate-reducing strains oXyS1 and mXyS1 on aromatic and nonaromatic compounds
| Compound testeda | Strainb:
|
|
|---|---|---|
| oXyS1 | mXyS1 | |
| Aromatic hydrocarbons | ||
| Toluene (2%) | + | + |
| o-Xylene (2%) | + | − |
| m-Xylene (2%) | − | + |
| o-Ethyltoluene (2%) | + | − |
| m-Ethyltoluene (2%) | − | + |
| m-Isopropyltoluene (2%) | − | + |
| Aromatic compounds with functional groups | ||
| o-Methylbenzyl alcohol (0.5, 2) | + | − |
| m-Methylbenzyl alcohol (0.5, 2) | − | − |
| Benzoate (1, 4) | + | + |
| o-Methylbenzoate (1, 2) | + | − |
| m-Methylbenzoate (1, 2) | − | + |
| Benzylsuccinate (1, 4) | + | − |
| Other compounds | ||
| Ethanol (1, 5) | + | − |
| Formate (10, 20) | + | + |
| Acetate (5, 10) | + | + |
| Propionate (5, 10) | − | + |
| n-Butyrate (5, 10) | + | + |
| Lactate (5, 10) | + | − |
| Pyruvate (1, 5) | + | + |
| Succinate (1, 5) | + | − |
| d,l-Malate (1, 5) | + | − |
Each compound was tested twice at the concentrations given in parentheses. Unless otherwise noted, concentrations are millimolar. Concentrations in percentages (vol/vol) refer to dilutions of hydrophobic compounds in heptamethylnonane as an inert carrier phase. Further compounds tested but utilized by neither strain: benzene (2%), ethylbenzene (2%), p-xylene (2%), p-ethyltoluene (2%), o-isopropyltoluene (2%), p-isopropyltoluene (2%), n-hexane (2, 5%), n-decane (5, 10%), cyclohexane (2%), methylcyclohexane (2%), phenol (0.5, 2), o-cresol (0.5, 2), m-cresol (0.5, 2), p-cresol (0.5, 2), acetophenone (1%), p-methylbenzoate (0.5, 2), methanol (5, 10), glucose (1, 5), fructose (1, 5).
Symbols: +, growth observed; −, no growth observed.