PpEBB1 directly binds to the GCC box-like element of auxin biosynthesis related genes

文献类型： 外文期刊

第一作者： Zhao, Xuehui

作者： Zhao, Xuehui;Wen, Binbin;Li, Chen;Chen, Xiude;Li, Dongmei;Ling, Li;Fu, Xiling;Zhao, Xuehui;Wen, Binbin;Li, Chen;Chen, Xiude;Li, Dongmei;Ling, Li;Fu, Xiling;Zhao, Xuehui;Wen, Binbin;Li, Chen;Chen, Xiude;Li, Dongmei;Ling, Li;Fu, Xiling;Liu, Li

作者机构：

关键词： PpEBB1; PpSTY1; PpSRS5; PpYUC1; Plant development; Auxin biosynthesis

期刊名称：PLANT SCIENCE （ 影响因子：3.591； 五年影响因子：4.253 ）

ISSN： 0168-9452

年卷期： 2021 年 306 卷

页码：

收录情况： SCI

摘要： EARLY BUD-BREAK 1 (EBB1) can promote bud break, and this function is likely conserved in woody plants. To get a more comprehensive understand of its function, peach (Prunus persica var. nectarina cultivar Zhongyou 4) PpEBB1 was overexpressed in Arabidopsis; the resultant phenotypes, including curved leaves, abnormal development of floral organs and low seed set, were similar to those of DORNR?OSCHEN-LIKE (DRNL) overexpression, indicating that PpEBB1 was a putative ortholog of AtDRNL. PpEBB1 bound to the GCC box-like element in the STYLISH1/SHI RELATED SEQUENCE5 (STY1/SRS5) promoter of peach, which has been proposed to occur in Arabidopsis as well. A GCC box-like element was also found in the YUCCA1 (YUC1) promoter, and PpEBB1 could bind to this element and activate the expression of YUC1. In addition to the elevated auxin content in the PpEBB1-oe plants as observed in our previous study, these results suggest that PpEBB1 can regulate auxin biosynthesis by directly activating related genes. Besides, we screened a zinc finger RING-finger protein, MYB30INTERACTING E3 LIGASE 1 (PpMIEL1), showing interaction with PpEBB1, suggesting that the stability of PpEBB1 might be influenced by PpMIEL1 through ubiquitination.

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