Melatonin suppresses ethylene biosynthesis by inhibiting transcription factor MdREM10 during apple fruit ripening
文献类型： 外文期刊
作者： Li, Chen 1 ; Yu, Qian 2 ; Si, Yajing 1 ; Liang, Yuling 1 ; Lin, Shijiao 1 ; Yang, Guangxin 1 ; Liu, Weiting 1 ; Ji, Yinglin 1 ; Wang, Aide 1 ;
作者机构： 1.Shenyang Agr Univ, Coll Hort, Key Lab Fruit Postharvest Biol Liaoning Prov, 120 Dongling Rd,Maganqiao St, Shenyang 110866, Peoples R China
2.Chinese Acad Agr Sci, Res Inst Pomol, Key Lab Fruit Storage & Proc Liaoning Prov, 98 Xinghai South St,Wenquan St, Xingcheng 125100, Peoples R China
期刊名称：HORTICULTURE RESEARCH （ 影响因子：8.5； 五年影响因子：9.1 ）
ISSN： 2662-6810
年卷期： 2025 年 12 卷 5 期
页码：
收录情况： SCI
摘要： Ethylene, a plant hormone, is essential for apple (Malus domestica) ripening. The precise molecular mechanism by which melatonin (MT) influences ethylene biosynthesis during apple fruit ripening remains unclear. This study found that exogenous MT treatment inhibited ethylene production and postponed apple fruit ripening. The endogenous MT content of apple fruits exhibited an inverse correlation with ethylene production during fruit ripening, suggesting that MT functions as a ripening suppressor in apple fruits. MT treatment suppressed the expression of key ethylene biosynthesis genes, MdACS1 and MdACO1, during apple fruit ripening. MT treatment decreased the expression levels of transcription factors MdREM10 and MdZF32. MdREM10 binds to the MdERF3 promoter, enhancing its expression and subsequently promoting MdACS1 transcription. Furthermore, MdREM10 directly bound to the MdZF32 promoter, promoting its transcription. MdZF32 directly bound to the MdACO1 promoter, inducing its expression. The findings suggested that MT suppresses ethylene biosynthesis and fruit ripening by inhibiting MdREM10, which indirectly promotes MdACS1 transcription via MdERF3 upregulation, and MdACO1 transcription via MdZF32 upregulation.
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