Abstract：
Postharvest physiological deterioration (PPD) reduces the availability and economic value of fresh produces, resulting in the waste of agricultural products and becoming a worldwide problem. Therefore, many studies have been carried out at the anatomical structural, physiological and biochemical levels and molecular levels of PPD of fresh produces to seek ways to manage the postharvest quality of fresh produce. The cell wall is the outermost structure of a plant cell and as such represents the first barrier to prevent external microorganisms and other injuries. Many studies on postharvest quality of crop storage organs relate to changes in plant cell wall-related components. Indeed, these studies evidence the non-negligible role of the plant cell wall in postharvest storage ability. However, the relationship between cell wall metabolism and postharvest deterioration of fresh produces has not been well summarized. In this review, we summarize the structural changes of cell walls in different types of PPD, metabolic changes, and the possible molecular mechanism regulating cell wall metabolism in PPD of fresh produce. This review provides a basis for further research on delaying the occurrence of PPD of fresh produce.
摘要：
采后生理恶化（PPD）降低了新鲜农产品的可用性和经济价值，导致农产品的浪费，成为一个世界性的问题。因此,在解剖结构上进行了许多研究，新鲜农产品PPD的生理生化水平和分子水平，以寻求管理新鲜农产品采后质量的方法。细胞壁是植物细胞的最外层结构，因此代表了防止外部微生物和其他伤害的第一个屏障。许多关于作物贮藏器官采后质量的研究与植物细胞壁相关成分的变化有关。的确,这些研究证明了植物细胞壁在采后贮藏能力中不可忽视的作用。然而,细胞壁代谢与新鲜农产品采后变质之间的关系尚未得到很好的总结。在这次审查中,我们总结了不同类型PPD中细胞壁的结构变化，代谢变化,以及调控新鲜农产品PPD细胞壁代谢的可能分子机制。本综述为进一步研究延缓生鲜农产品PPD的发生提供了依据。
