Quercetin boosts grape cold resistanceVvbZIP22 regulates quercetin synthesis to enhances cold resistance in grape.
We observed that quercetin, a powerful antioxidant, plays a significant role in helping grapes withstand cold temperatures. In our study, we found that grapes exposed to low temperatures accumulate more quercetin, which in turn enhances their cold resistance.
By applying exogenous quercetin, we noted a marked improvement in the grapes' ability to endure low-temperature stress. Our research revealed that a key gene, VvFLS1, responsible for quercetin synthesis is upregulated when grapes experience cold conditions.
We also discovered that VvbZIP22, a protein that binds to the VvFLS1 promoter, is crucial for mediating this process. When we overexpressed VvbZIP22 in grapes, it resulted in higher levels of quercetin and improved cold resistance, further confirming its pivotal role in the plant's adaptation to harsh environments.
Through these findings, we highlighted the importance of quercetin in enhancing grape survival during cold spells, showcasing a vital link between plant biology and climate resilience.
Eases nasal irritations
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Helping throat and nasal passages. I ordered this based on an article stating that nettles help with chronic nasal inflammation. It cleared things up over winter, but I stopped in summer, and my throat irritation returned. I resumed taking them, and the irritation was gone in a week. I prefer a natural approach instead of my old cold medicine.