Advances in the mechanism of phytohormone in regulating coloration of postharvest citrus peel

  • AI Yeru ,
  • WANG Huali ,
  • HAN Jin ,
  • HAN Saiying ,
  • DENG Lili
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  • 1(College of Food Science, Southwest University, Chongqing 400715, China)
    2(Research Center for Fruits and Vegetables Logistics Preservation and Nutritional Quality Control, Southwest University, Chongqing 400715, China)

Received date: 2024-09-30

  Revised date: 2024-11-26

  Online published: 2025-08-22

Abstract

Citrus is one of the most extensively cultivated and economically significant fruit crops.The color of citrus peel serves as an indicator of ripeness, influencing both consumer preferences and commercial value.The coloration of citrus peel is determined by internal factors such as citrus genetic background, developmental stage, and tissue structure, along with environmental factors like storage temperature and light.In addition, changes in endogenous phytohormones and exogenous phytohormone treatment play a critical role in the coloration of citrus fruits.Notably, phytohormones like ethylene, abscisic acid, jasmonic acid, and auxin are crucial in enhancing citrus peel coloration, while gibberellin typically acts as a suppressor.The coloration of citrus peel is influenced by the regulation of genes related to phytohormone metabolism and signal transduction by theses phytohormones.This process restores the balance of endogenous phytohormones, thereby regulating genes involved in the pathways of chlorophyll and carotenoid metabolism.Transcription factors are essential for regulating not only chlorophyll and carotenoid metabolism but also phytohormone metabolism and signal transduction.Furthermore, phytohormones influence coloration by regulating the functions of these transcription factors.This review consulted relevant domestic and international research, summarized recent advancements in the understanding of the regulation of citrus peel color by phytohormones, and offers a reference for future studies.

Cite this article

AI Yeru , WANG Huali , HAN Jin , HAN Saiying , DENG Lili . Advances in the mechanism of phytohormone in regulating coloration of postharvest citrus peel[J]. Food and Fermentation Industries, 2025 , 51(15) : 392 -400 . DOI: 10.13995/j.cnki.11-1802/ts.041196

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