Table 1. Size and population average double-stranded DNA content of vesicles from cultured bacteria.
| Strain | dsDNA/vesicle (ng) | dsDNA/vesicle (bp) | Mode vesicle diameter (nm) |
|---|---|---|---|
| E. coli | 1.9 (±2.6) × 10−11 | 17 | 80 (±3) |
| Prochlorococcus | 3.1 (±2.4) × 10−11 | 28 | 92 (±9) |
| Salinicola | 1.6 (±2.2) × 10−10 | 149 | 126 (±9) |
| Alteromonas | 1.9 (±2.2) × 10−10 | 174 | 117 (±11) |
| Thalassospira | 5.1 (±3.8) × 10−10 | 473 | 126 (±7) |
Abbreviation: dsDNA, double-stranded DNA.
Mean DNA length was calculated assuming an average mass of 1.08 × 10−12 ng per bp. Values indicate the mean±s.d. from two biological replicates.