Table 6.
Individual glucosinolates in black mustard sprouts accumulated under three LED lighting regimes (broad-spectrum, blue, or red LEDs) and the use of saline irrigation (100 mM NaCl) and spray elicitation with 250 µM MeJA.
| Treatment | Glucosinolates (mg 100 g−1 FW) | ||||||
|---|---|---|---|---|---|---|---|
| SIN | 4-HGB | GB | 4-MGB | NGB | Aliphatic | Indolic | |
| White | |||||||
| Cw | 2.97 a | 1.40 a | - | 2.14 a | - | 2.97 a | 3.55 a |
| 250 µM MeJA | 5.77 ab | 2.00 ab | - | 3.86 b | - | 5.77 ab | 5.86 ab |
| 100 mM NaCl | 4.90 a | 1.14 a | - | 4.55 bc | - | 4.90 a | 5.69 ab |
| NaCl + MeJA | 12.14 b | 2.86 b | - | 3.92 b | - | 12.14 b | 6.79 ab |
| Blue LED | |||||||
| Cb | 38.96 c | 4.75 c | 3.65 b | 6.21 c | 14.97 c | 38.96 c | 29.59 e |
| 250 µM MeJA | 11.06 b | 2.36 ab | - | 7.69 d | 2.00 a | 11.06 b | 12.05 c |
| 100 mM NaCl | 34.96 c | 4.36 c | 2.38 a | 5.25 bc | 12.19 b | 34.96 c | 24.18 d |
| NaCl + MeJA | 48.67 d | 6.26 d | 3.79 b | 5.24 bc | 16.83 c | 48.67 d | 32.12 f |
| Red LED | |||||||
| Cr | 6.36 ab | 0.98 a | - | 4.79 bc | 0.74 a | 6.36 ab | 6.51 ab |
| 250 µM MeJA | 7.61 ab | 1.14 a | - | 5.12 bc | 1.54 a | 7.61 ab | 7.80 b |
| 100 mM NaCl | 7.17 ab | 1.51 a | - | 3.62 b | 0.40 a | 7.17 ab | 5.52 ab |
| NaCl + MeJA | 11.74 b | 3.08 b | - | 5.55 bc | - | 11.74 b | 8.63 b |
Different letters for individual glucosinolates indicate significant differences among treatments according to the Student–Newman–Keuls test (p < 0.05). Control for each LED light condition (Cw, Cb, and Cr) For the GSLs abbreviations refer to Table 2 (SIN, sinigrin; 4-HGB, hydroxyglucobrassicin; GB, glucobrassicin; 4-MGB, methoxyglucobrassicin; NGB, neoglucobrassicin).