Table 2.
Quantitative analysis of sterol sulfates in the benthic diatoms Cylindrotheca closterium, Nanofrustulum shiloi, Cocconeis scutellum, and Diploneis sp. Sterol sulfate content is expressed as µg/mg of carbon (dry weight). Each sample was analyzed in triplicate. Means ± standard error is reported.
| Diatom Species | Compounds | µg StS/mg C |
|---|---|---|
| C. closterium | Desmosterol sulfate | 26.21 ± 2.6 |
| Total StS | 26.21 ± 2.6 | |
| N. shiloi | Brassicasterol sulfate | 5.94 ± 1.0 |
| Fucosterol sulfate | 60.69 ± 7.3 | |
| Total StS | 66.63 ± 5.2 | |
| C. scutellum | 24-methylene cholesterol sulfate | 10.09 ± 1.3 |
| Brassicasterol sulfate | 3.91 ± 0.1 | |
| Total StS | 14.00 ± 1.45 | |
| Diploneis sp. | Brassicasterol sulfate | 11.03 ± 2.9 |
| Total StS | 11.03 ± 2.9 |