CsBPC6-CsNACX2-CsTCS1 Module Positively Regulates Caffeine Biosynthesis Under PEG-Induced Drought Stress in Tea Plants (Camellia sinensis).
Caffeine biosynthesis in tea plants (Camellia sinensis) is dynamically regulated by environmental cues; however, the mechanisms linking early drought signals to caffeine accumulation remain unclear. Here, we show that acute PEG-induced osmotic stress induces rapid caffeine accumulation, accompanied by transcriptional a...