Cold stress adversely affects plant production, both qualitatively and quantitatively. Banana (Musa acuminata) is sensitive to cold stress and suffers chilling injury (CI) when stored under 11 °C, causing abnormal fruit softening. However, the mechanism underlying the abnormal fruit softening due to CI remains obscure. This study uncovered the coordinated transcriptional mechanism of ethylene F-box (EBF1) protein and abscisic acid-insensitive 5 (ABI5)-like protein in regulating chilling-induced softening disorders of Fenjiao banana. Cold stress severely inhibited the transcript and protein levels of EBF1, ABI5-like, and fruit softening-related genes. The ABI5-like protein bound to the promoters of key starch and cell wall degradation-related genes such as β-amylase 8 (BAM8), pectate lyase 8 (PL8), and β-D-xylosidase23-like (XYL23-like) and activated their activities. EBF1 physically interacted with ABI5 -like and enhanced the transcriptional activity of the key starch and cell wall degradation-related genes but...
F-box protein EBF1 and transcription factor ABI5-like regulate banana fruit chilling-induced ripening disorder.
Xiaoyang Zhu, Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center for Postharvest Technology of Horticultural Crops in South China, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China. E-mail xiaoyang_zhu@scau.edu.cn
Zunyang Song, Xiuhua Lai, Yulin Yao, Jiajia Qin, Xiaochun Ding, Qiuli Zheng, Xuequn Pang, Weixin Chen, Xueping Li, Xiaoyang Zhu; F-box protein EBF1 and transcription factor ABI5-like regulate banana fruit chilling-induced ripening disorder.. IFIS Food and Health Sciences Database 2022; doi:
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