MaERF9 and MaERF113 transcription factors involve in chilling injury development by regulating membrane lipid metabolism of postharvest banana fruit
文献类型： 外文期刊
作者： Bai, Lijuan 1 ; Wu, Yanting 1 ; Lin, Hetong 1 ; Su, Wenbing 3 ; Fan, Zhongqi 1 ;
作者机构： 1.Fujian Agr & Forestry Univ, Inst Postharvest Technol Agr Prod, Coll Food Sci, Fuzhou 350002, Peoples R China
2.Fujian Prov Univ, Key Lab Postharvest Biol Subtrop Special Agr Prod, Fuzhou 350002, Peoples R China
3.Fujian Acad Agr Sci, Fruit Res Inst, Fuzhou 350013, Peoples R China
关键词： Banana fruit; Chilling injury; Membrane lipid metabolism; ERF transcription factors; Transcriptional regulation
期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：6.8； 五年影响因子：7.5 ）
ISSN： 0925-5214
年卷期： 2025 年 219 卷
页码：
收录情况： SCI
摘要： Banana is a cold-sensitive fruit, which exhibits vulnerability to chilling injury (CI), causing browning, pitting, even abnormal ripening, resulting in quality deterioration and economic loss. CI development of banana fruit was caused by membrane integrity damage and was related to the enzymatic and genetic manipulation of membrane lipid metabolism pathway. The involvement of Ethylene Response Factor (ERF) transcription factors (TFs) in membrane lipid-mediated CI development of cold-sensitive fruit, such as banana, remains largely unknown. In this study, we found that cold treatment increased CI index, cell membrane permeability and MDA content, decreased hue angle (h degrees) value. The expressions of membrane lipids metabolism genes, including MaDGK, MaPLA, MaLipase and MaLOX, were upregulated by cold treatment. Also, two banana ERF TFs, designated as MaERF9 and MaERF113, were induced by cold environment and displayed transactivation activities. Additionally, the electrophoretic mobility shift assay (EMSA) and transient expression analysis showed that MaERF9 and MaERF113 directly bound to the GCC-box elements in the promoters of MaDGK, MaPLA, MaLipase and MaLOX, and activated their expressions. These findings imply that MaERF9 and MaERF113 involved in CI development of banana fruit, via affecting membrane lipid metabolism. Collectively, our results provide new insights into the transcriptional regulation network regulating CI development of banana fruit.
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