TABLE 5.
Internalization of MNV in kale and mustard microgreens grown in a previously contaminated hydroponic system
| Microgreen | Virus titer, log PFU/sample (ratio of positive counts/samples tested) |
||
|---|---|---|---|
| Day 8 | Day 9 | Day 12 | |
| Edible tissues | |||
| Kale | A 1.99 ± 0.82 A (8/9) | A 2.43 ± 0.15 AB (9/9) | A 2.61 ± 0.14 B (9/9) |
| Mustard | A 2.26 ± 0.28 A (9/9) | A 2.49 ± 0.12 B (9/9) | A 2.61 ± 0.14 B (9/9) |
| Roots | |||
| Kale | A 2.03 ± 0.20 A (9/9) | A 2.09 ± 0.17 A (9/9) | A 2.17 ± 0.18 A (9/9) |
| Mustard | A 1.69 ± 0.66 AB (8/9) | A 1.52 ± 0.89 A (7/9) | A 2.21 ± 0.11 B (9/9) |
a
Values are means ± SD from three trials with three samples each. Values in columns with the same preceding letter indicate no significant difference in virus titers when comparing the edible tissue/root between kale and mustard on each sampling day. Values in rows with the same following letter indicate no significant difference in virus titers within the portions of kale or mustard over time.