Table 1.
Summary table explaining the effect of Cd on genes related to melatonin metabolic pathway.
| Plant Species | Cd Stress and Duration | Impact on Genes Related to Melatonin Metabolic Pathway | References |
|---|---|---|---|
| Solanum lycopersicum | 100 μM Cd2+ for 15 d | TDC, T5H, COMT genes (leaves) | [22] |
| Oryza sativa L. | 500 μM Cd2+ for 3 d | TDC1, TDC3, SNAT1, SNAT2, ASMT, COMT, M2H, M3H genes (seedlings) | [23] |
| Triticum aestivum L. | 200 μM Cd2+ for 1 d | ASMT, COMT, TDC genes (root and shoot) | [62] |
| Nicotiana tabacum L. | 10 mg/kg Cd2+ for 1, 4, and 7 d | SNAT1 gene (leaves) | [63] |
| Agaricus campestris | 2, 5, or 8 μM Cd2+ for 5 d | TDC, T5H, SNAT, ASMT, COMT genes | [64] |
| Oryza sativa L. | 200 μM Cd2+ for 6, 12, 24, 72 h | SNAT, ASMT, COMT, TDC, T5H genes (leaves) | [65,67] |
| Arabidopsis thaliana | 300 μM Cd2+ for 2, 3, 4 d | SNAT, COMT genes (leaves) | [66] |
TDC1, tryptophan decarboxylase1; T5H, tryptamine 5-hydroxylase; COMT, caffeic acid O-methyltransferase; SNAT1, serotonin N-acetyltransferase1; SNAT2, serotonin N-acetyltransferase2; ASMT, N-acetylserotonin-O-methyltransferase; M2H, melatonin 2-hydroxylase; M3H, melatonin 3-hydroxylase.