Department of Horticultural Science, Imam Khomeini International University, Qazvin, Iran.
Department of Horticulture, Faculty of Agriculture, University of Zanjan, Zanjan, Iran.
Food Chem. 2024 Oct 30;456:139987. doi: 10.1016/j.foodchem.2024.139987. Epub 2024 Jun 4.
During postharvest life, intracellular sugar insufficiency accompanied by insufficient intracellular ATP and NADPH supply, intracellular ROS overaccumulation along with intracellular ABA accumulation arising from water shortage could be responsible for accelerating fruits and vegetables deterioration through promoting SnRK1 and SnRK2 signaling pathways while preventing TOR signaling pathway. By TOR and SnRK1 signaling pathways manipulation, sufficient intracellular ATP and NADPH providing, supporting phenols, flavonoids and anthocyanins accumulation accompanied by improving DPPH, FRAP, and ABTS scavenging capacity by enhancing phenylpropanoid pathway activity, stimulating endogenous salicylic acid accumulation and NPR1-TGA-PRs signaling pathway, enhancing fatty acids biosynthesis, elongation and unsaturation, suppressing intracellular ROS overaccumulation, and promoting endogenous sucrose accumulation could be responsible for chilling injury palliating, fungal decay alleviating, senescence delaying and sensory and nutritional quality preservation in fruits and vegetables. Therefore, TOR and SnRK1 signaling pathways manipulation during postharvest shelf life by employing eco-friendly approaches such as exogenous trehalose and ATP application or engaging biotechnological approaches such as genome editing CRISPR-Cas9 or sprayable double-stranded RNA-based RNA interference would be applicable for improving fruits and vegetables marketability.
在采后生命过程中,细胞内糖不足伴随着细胞内 ATP 和 NADPH 供应不足,细胞内 ROS 过度积累以及由于缺水导致的细胞内 ABA 积累,可能通过促进 SnRK1 和 SnRK2 信号通路而加速水果和蔬菜的恶化,同时阻止 TOR 信号通路。通过 TOR 和 SnRK1 信号通路的操作,提供足够的细胞内 ATP 和 NADPH,支持酚类、类黄酮和花色苷的积累,同时通过增强苯丙素途径活性、刺激内源性水杨酸积累和 NPR1-TGA-PRs 信号通路来提高 DPPH、FRAP 和 ABTS 清除能力,从而延缓衰老并保持感官和营养品质。因此,通过采用生态友好的方法,如外源海藻糖和 ATP 的应用,或采用生物技术方法,如基因组编辑 CRISPR-Cas9 或喷雾双链 RNA 基 RNA 干扰,在采后货架期对 TOR 和 SnRK1 信号通路进行操作,适用于提高水果和蔬菜的市场竞争力。