Journal of Zhejiang Agricultural Sciences ›› 2026, Vol. 67 ›› Issue (3): 709-715.DOI: 10.16178/j.issn.0528-9017.20250866

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Analysis of the potential pathological mechanisms of internal browning of peach-shaped plum in Pujiang based on metabolomics

XIE Xiaobo1(), PAN Mingzheng2, QIU Haiping3, FAN Fei1, GAO Anzhong4, REN Qiandong2, ZHANG Yuchao1   

  1. 1.Institute of Horticulture,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,Zhejiang
    2.Agricultural Product Quality and Safety Center of Pujiang County,Jinhua 322299,Zhejiang
    3.Institute of Plant Protection and Microbiology,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,Zhejiang
    4.Agricultural Technology Extension Center of Pujiang County,Jinhua 322299,Zhejiang
  • Received:2025-11-27 Online:2026-03-11 Published:2026-03-30

Abstract:

To investigate the etiology of internal browning of peach-shaped plum in Pujiang,mature fruits with internal browning(XMB)and normal fruits(XMG)were used as research objects. Non-targeted metabolomics was applied to analyze and compare the metabolite profiles between XMB and XMG. A total of 90 differential metabolites were identified by secondary mass spectrometry. Twenty-seven metabolites,including the plant antitoxin 6-methoxymellein,showed upregulation in relative content,while sixty-three metabolites showed downregulation in relative content. KEGG enrichment analysis indicated that the phenylpropanoid metabolic pathway was activated. The results suggest that internal browning of peach-shaped plum in Pujiang is likely a pathological disorder induced by pathogen infection,providing an important reference for disease control.

Key words: peach-shaped plum in Pujiang, internal browning, metabolomics, 6-methoxymylin, phenylpropanoid metabolic pathway

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