Table 1.
Thiol content of Actinomycetes.
| Thiol content (μmol/ g residual dry weight) | ||
|---|---|---|
| Strain | Mycothiol | Glutathione |
| Mycobacterium smegmatis mc2155* | 11.3 ± 0.2 (4) | <0.01 |
| Streptomyces ghanensis ATCC 14672 1 | 1.4 ± 0.1 (28) | <0.01 |
| Streptomyces griseus ATCC 13273 1 | 3.0 ± 0.4 (28) | <0.01 |
| Nocardiopsis flava ATCC 29533 | 1.3 ± 0.3 (4) | <0.01 |
| Rhodococcus erythropolis ATCC 4277 | 3.9 ± 0.3 (4) | <0.01 |
| Rhodococcus RHA1 2* | 3.0 - 9.0 (4) | <0.01 |
| Rhodococcus AD45 2* | 15 – 20 (4) | 1 - 3 (4) |
| Arthrobacter histodinolovorans* | 0.3 ± 0.0 (3) | <0.01 |
| Arthrobacter aurescens* | 1.0 ± 0.2 (3) | <0.01 |
| Rubrobacter radiotolerans ATCC 51242 | <0.01 | 5.3 ± 0.6 (3) |
| Rubrobacter xylanophilus DSM 9941* | <0.01 | 2.4 ± 0.2 (4) |
| Kineococcus radiotolerans ATCC BAA149 | 4.0 ± 0.4 (3) | <0.01 |
| Escherichia coli DH5 | <0.01 | 7. 7 ± 1.1 (3) |
Samples were harvested during log phase growth. Values are means ± SEM (n).
1
Mean of quadruplicate samples harvested during 7 days of growth
2
Range of MSH levels during log phase of growth
*
Rhodococcus Rha1 (a gift from by Dr. Julian Davies), Rhodococcus AD45 (a gift from Dr. D. Jansen), Rubrobacter xylanophilus DSM 9941(a gift from Dr. J. Batista), Mycobacterium smegmatis mc2155 (a gift from Dr. W. R. Jacob, Jr.), Arthrobacter histodinolovorans and Arthrobacter aurescens (gifts from Dr. A. Wright).