Acta Agriculturae Zhejiangensis ›› 2026, Vol. 38 ›› Issue (4): 824-836.DOI: 10.3969/j.issn.1004-1524.20250237

• Review • Previous Articles    

Research progress on metabolism and regulation technologies of pear fruit during low-temperature storage

LI Wenjue1,2(), DU Chenfei1,2, WEI Chunyan2, CAI Danying2, WANG Yuezhi2, SHI Zebin2, DAI Meisong2,*(), XU Kai1,*()   

  1. 1 College of Horticultural Science, Zhejiang A&F University, Hangzhou 311300, China
    2 Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Received:2025-03-24 Online:2026-04-25 Published:2026-05-08

Abstract:

Postharvest pears are prone to quality deterioration due to metabolic imbalances. Low-temperature storage is a crucial technique for delaying fruit senescence and maintaining quality. In recent years, metabolomics has been extensively used to reveal the metabolic changes in different pear varieties under low-temperature storage. However, inappropriate low temperatures or prolonged storage can induce cold stress. The molecular mechanisms involve the cascade regulation of cold-responsive genes by transcription factors in the low-temperature signal transduction pathway, subsequently triggering responses in phenylpropanoid metabolism and the reactive oxygen species scavenging system. These processes lead to membrane lipid peroxidation, energy metabolism imbalance, and abnormal accumulation of secondary metabolites, ultimately resulting in typical quality deterioration such as browning, lignification, and aroma loss. Therefore, low-temperature storage often requires combination with other preservation technologies to alleviate chilling injury. This article systematically elaborates on the physiological and metabolic dynamics of pear fruit under low-temperature storage and its molecular regulatory network, reviews the recent advances in the application of low-temperature synergistic technologies for chilling injury prevention and control, and prospects future research directions for analyzing quality changes and developing precise regulation technologies based on multi-omics technologies aiming to provide a theoretical basis for optimizing postharvest preservation technologies for pear fruits.

Key words: pear, low-temperature storage, postharvest biology, metabonomics, regulation technology

CLC Number: