| 4-HPAA | 4-hydroxyphenylacetaldehyde |
| 4-HPP | 4-hydroxyphenylpyruvate |
| 4-OMT | (R,S)-3′-hydroxy-N-methylcoclaurine 4′-O-methyltransferase |
| 6-OMT | norcoclaurine 6-O-methyltransferase |
| 7-OMT | (R,S)-reticuline 7-O-methyltransferase |
| AP2/ERF | APETALA2/ethylene responsive factor |
| BBE | berberine bridge enzyme |
| BIA(s) | benzylisoquinoline alkaloid(s) |
| CFS | cheilanthifoline synthase |
| CNMT | (R,S)-coclaurine N-methyltransferase |
| CODM | codeine O-demethylase |
| COR | codeinone reductase |
| DAG | diacylglycerol |
| HPLC-MS | High-performance liquid chromatography-mass spectrometry |
| IP3 | inositol 1,4,5-trisphosphate |
| JA | jasmonic acid |
| MAPK(s) | mitogen-activated protein kinase(s) |
| MeJA | methyl jasmonate |
| N7OMT | (R,S)-norreticuline 7-O-methyltransferase |
| NAC | NACNAM/ATAF1,2/CUC2 family protein |
| NCS | norcoclaurine synthase |
| NISO | neopinone isomerase |
| NMCH | (S)-N-methylcoclaurine 3-hydroxylase |
| PA | phosphatidic acid |
| PI-PLC | phosphoinositide-specific phospholipase |
| PIP2 | phosphatidylinositol bisphosphate |
| PLA2 | phospholipase A2 |
| PLC | phospholipase C |
| PLD | phospholipase D |
| Ps175C3H | C3H transcription factor from Papaver somniferum L. |
| PsAP2 | APETALA2/ethylene responsive factor from Papaver somniferum L. |
| RT-qPCR | real-time quantitative polymerase chain reaction |
| SalAT | salutaridinol 7-O-acetyltransferase |
| SalR | salutaridine reductase |
| SalSyn | salutaridine synthase |
| STORR | STORR fusion protein |
| STSY | stylopine synthase |
| T6ODM | thebaine 6-O-demethylase |
| TF(s) | transcription factor(s) |
| THS | thebaine synthase |
| TYDC | tyrosine decarboxylase |
| TyrAT | tyrosine aminotransferase |