The transcription factor PbbHLH164 is destabilized by PbRAD23C/D.1 and mediates ethylene biosynthesis during pear fruit ripening

ZhiHua Guo,Hong Liu, SiQi Zheng,KaiJie Qi,ZhiHua Xie,XuePing Wang, YeMei Hong, YanBo Cui,Xiaoxiang Liu,Chao Gu,Shao-Ling Zhang

Journal of advanced research（2024）

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摘要

•A new bHLH transcription factor PbbHLH164 binds to PbACS1b to enhance the PbACS1b expression.•PbbHLH164 promotes ethylene biosynthesis and pear fruit ripening.•PbRAD23C/D.1 interacts with PbbHLH164 to induce the degradation of PbbHLH164.•PbbHLH164 is higher expressed but PbRAD23C/D.1 is lower expressed in ripening fruits than in developing fruits.

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关键词

Pyrus pyrifolia,Ethylene,Fruit development and ripening,PbbHLH164,PbRAD23C/D.1,Transcriptional regulation

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