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MaEIL4-MaMADS36-MaACS7 module transcriptionally regulates ethylene biosynthesis during banana fruit ripening

文献类型： 外文期刊

作者： Fu, Maoni 1 ; Zheng, Yunke 1 ; Zhang, Jing 1 ; Deng, Chengju 5 ; Zhang, Jianbin 1 ; Jia, Caihong 3 ; Miao, Hongxia 1 ; Wang, Jingyi 1 ; Zheng, Sijun 6 ; Jin, Zhiqiang 1 ; Li, Xinguo 4 ; Xie, Jianghui 1 ; Liu, Juhua 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Banana Genet Improvement Dept, Natl Key Lab Trop Crop Breeding, 4 Xueyuan Rd, Haikou 571101, Peoples R China

2.Chinese Acad Trop Agr Sci, Sanya Res Inst, 4 Xueyuan Rd, Haikou 571101, Peoples R China

3.Chinese Acad Trop Agr Sci, Hainan Inst Trop Agr Resources, Hainan Key Lab Protect & Utilizat Trop Bioresource, 4 Xueyuan Rd, Haikou 571101, Peoples R China

4.Hainan Univ, Sch Trop Agr & Forestry, Haikou 570228, Peoples R China

5.Honghe Trop Agr Inst Yunnan, Honghe 661300, Hekou, Peoples R China

6.Yunnan Acad Agr Sci, Agr Environm & Resources Inst, Biovers Int, 2238 Beijing Rd, Kunming 650205, 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 3 期

页码：

收录情况： SCI

摘要： The present research examined the regulatory function of MaEIL4 in the ripening process of banana. The findings demonstrated that MaEIL4 is a transcription factor with activity in the nucleus. The transient modulation of MaEIL4 expression in banana fruit slices has been found to exert a significant impact on maturation, either enhancing or inhibiting its progression, as shown by phenotype and endogenous gene expression. MaEIL4, MaMADS36, and MaACS7 were coexpressed in bananas. MaEIL4 interacted with both the MaMADS36 protein and the TGAA box of the MaMADS36 promoter to activate its expression. Moreover, MaMADS36 bound to the C(A/T)rG box of the MaACS7 promoter to regulate fruit ripening. The results have characterized the mechanism of MaMADS36's response to upstream ethylene signals and established a new module, MaEIL4-MaMADS36-MaACS7, which transcriptionally regulates banana fruit ripening. This research has enhanced our comprehension of the pivotal function of MaMADS36 in controlling fruit maturation and thus suggests new strategies for fruit shelf life improvement and postharvest loss reduction.

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