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Participation of FaTRAB1 Transcription Factor in the Regulation of FaMADS1 Involved in ABA-Dependent Ripening of Strawberry Fruit

文献类型： 外文期刊

作者： Lu, Wenjing 1 ; Wei, Xiaopeng 2 ; Han, Xueyuan 2 ; Chen, Renchi 2 ; Xiao, Chaogeng 1 ; Zheng, Xiaojie 5 ; Mao, Linchun 2 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Food Sci, 298 Desheng Rd, Hangzhou 310021, Peoples R China

2.Zhejiang Univ, Coll Biosyst Engn & Food Sci, Zhejiang Key Lab AgroFood Proc, Hangzhou 310058, Peoples R China

3.Zhengzhou Univ Light Ind, Sch Food & Bioengn, Zhengzhou 450002, Peoples R China

4.Shaoxing Univ, Sch Life Sci, Shaoxing 312000, Peoples R China

5.Wenzhou Vocat Coll Sci & Technol, Dept Agr & Biotechnol, Wenzhou 325006, Peoples R China

6.Zhejiang Univ, Ningbo Res Inst, Ningbo 315100, Peoples R China

关键词： phytohormone; Fragaria x ananassa; fruit ripening; MADS; TRAB

期刊名称：FOODS （ 影响因子：5.2； 五年影响因子：5.5 ）

ISSN：

年卷期： 2023 年 12 卷 9 期

页码：

收录情况： SCI

摘要： Abscisic acid (ABA) plays a crucial role in regulating the ripening of non-climacteric strawberry fruit. In the present study, ABA was confirmed to promote strawberry ripening and induce the down-regulation of FaMADS1. The transient silence of FaMADS1 in strawberries promoted fruit ripening and induced the content of anthocyanin and soluble pectin but reduced firmness and protopectin through a tobacco rattle virus-induced gene silencing technique. In parallel with the accelerated ripening, the genes were significantly induced in the transiently modified fruit, including anthocyanin-related PAL6, C4H, 4CL, DFR, and UFGT, softening-related PL and XTH, and aroma-related QR and AAT2. In addition, the interaction between FaMADS1 and ABA-related transcription factors was researched. Yeast one-hybrid analysis indicated that the FaMADS1 promoter could interact with FaABI5-5, FaTRAB1, and FaABI5. Furthermore, dual-luciferase assay suggested that FaTRAB1 could actively bind with the FaMADS1 promoter, resulting in the decreased expression of FaMADS1. In brief, these results suggest that the ABA-dependent ripening of strawberry fruit was probably inhibited through inhibiting FaMADS1 expression by the active binding of transcript FaTRAB1 with the FaMADS1 promoter.

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