Low-temperature storage is used to extend the shelf life of fruits, but prolonged storage at temperatures below tolerable levels may cause postharvest chilling injury (PCI) in sensitive commodities. This review aims to highlight adenosine triphosphate (ATP) activation and the interplay of extracellular ATP (eATP) and intracellular ATP (iATP) in fruits and to find out its significance in mitigating PCI. Various pathways, such as the Embden–Meyerhof–Parnas pathway, the tricarboxylic acid cycle, the pentose phosphate pathway, the γ-aminobutyric acid shunt pathway, and the cytochrome pathway, are studied critically to elucidate their role in continuous ATP supply and maintaining the membrane fluidity and integrity. This review summarizes the treatments helpful in modulating energy metabolism in fruit. Additionally, this work provides insights into the energy status in attenuating chilling tolerance. Moreover, it states the potential of nicotinamide adenine dinucleotide in mitigating PCI. Furthermore, it discusses the role of eATP and its receptor DORN1 in mitigating chilling stress.

中文翻译：

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ATP 是水果采后耐寒性的信号调节因子吗？


低温储存用于延长水果的保质期，但在低于可容忍水平的温度下长时间储存可能会导致敏感商品的采后冷害 （PCI）。本文旨在强调水果中三磷酸腺苷 （ATP） 的激活以及细胞外 ATP （eATP） 和细胞内 ATP （iATP） 的相互作用，并找出其在减轻 PCI 中的重要性。批判性地研究了各种途径，例如 Embden-Meyerhof-Parnas 途径、三羧酸循环、磷酸戊糖途径、γ-氨基丁酸分流途径和细胞色素途径，以阐明它们在连续 ATP 供应和维持膜流动性和完整性中的作用。本文总结了有助于调节水果能量代谢的治疗方法。此外，这项工作还提供了对衰减冷却耐受性的能量状态的见解。此外，它指出了烟酰胺腺嘌呤二核苷酸在减轻 PCI 方面的潜力。此外，它还讨论了 eATP 及其受体 DORN1 在减轻寒冷应激中的作用。