An Ethylene-Response Factor LlERF092 Coordinates With LlETO1 to Improve Thermotolerance by Activating LlMBF1c in Lily.

ABSTRACT: Multiprotein bridging factor 1c (MBF1c) has been shown to play a critical role in plant responses to heat stress. Previous studies have implicated MBF1c roles in ethylene-mediated thermotolerance; however, the upstream regulatory mechanisms linking MBF1c to this process remain unclear. In this study, an ethylene-response factor (ERF), LlERF092, was identified as a potential regulator of LlMBF1c through a yeast one-hybrid screening assay. Further investigations revealed that LlERF092 directly bound to the promoter of LlMBF1c and activated its transcription. LlERF092 was rapidly induced by heat stress, and its protein localised to the nucleus. Overexpression of LlERF092 enhanced the thermotolerance of the transgenic lily plants. Furthermore, immunoprecipitation followed by mass spectrometry

SUBMITTER: Xiang J 

PROVIDER: S-EPMC12576437 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature