Table 2.
Elemental analysis of Mycobacteria using STEM and EDS.
| Organisms | Elements | On inclusion (average ± SD) | Off inclusion (average ± SD) | ||
|---|---|---|---|---|---|
| M. tuberculosis | P | 1035.5 | ±328.9 | 86.0 | ±134.1 |
| K | 21.7 | ±7.2 | 2.3 | ±4.5 | |
| Ca | 6.0 | ±10.5 | 0.4 | 0.0 | |
| Mg | 35.6 | ±16.9 | 0.0 | 0.0 | |
| Fe | 0.0 | 0.0 | 0.0 | 0.0 | |
| Cu | 0.0 | 0.0 | 0.0 | 0.0 | |
| M. avium subsp. | P | 678.1 | ±542.2 | 17.8 | ±35.6 |
| paratuberculosis | K | 56.0 | ±89.9 | 19.7 | ±39.3 |
| Ca | 21.8 | ±30.5 | 0.0 | 0.0 | |
| Mg | 78.3 | ±75.5 | 5.0 | ±3.9 | |
| Fe | 0.0 | 0.0 | 0.0 | 0.0 | |
| Cu | 0.0 | 0.0 | 0.0 | 0.0 | |
| M. smegmatis | P | 740.5 | ±481.1 | 21.0 | ±26.8 |
| K | 224.1 | ±364.4 | 53.0 | ±72.2 | |
| Ca | 28.0 | ±55.9 | 0.0 | 0.0 | |
| Mg | 130.2 | ±131.2 | 2.1 | ±4.2 | |
| Fe | 0.0 | 0.0 | 0.0 | 0.0 | |
| Cu | 0.0 | 0.0 | 0.0 | 0.0 | |
Intensity of selected elements inside and outside of representative polyphosphate granules identified in several mycobacterial strains. Data were collected from eight granules representing multiple cells within at least two biological replicates. Representative average intensities from four granules are shown.