Related Experiment Video
Updated: Jan 26, 2026

Describing a Transcription Factor Dependent Regulation of the MicroRNA Transcriptome
Published on: June 15, 2016
The transcription factor OsERF74 positively regulates drought resistance by modulating abscisic acid catabolism in
Ziyi Luo1, Chen Tang1, Liping Wang2
1State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China.
Abstract:
Against the backdrop of global climate change, water scarcity and food shortages, drought has emerged as a critical constraint on crop productivity, posing a severe threat to sustainable agricultural production. In this study, we identify the rice transcription factor OsERF74 as a key regulator of drought resistance. Overexpression of OsERF74 in Arabidopsis plants enhances drought tolerance, whereas rice knockout lines display increased drought sensitivity. Transcriptomic analysis reveals that OsERF74 modulates multiple pathways under drought stress. Mechanistically, OsERF74 directly binds to the promoters of ABA catabolic genes OsABA8ox1&2 to regulate their expression, thereby modulating ABA homeostasis and drought responses. Our findings demonstrate that OsERF74 positively regulates drought resistance by directly controlling ABA degradation, as well as regulating multiple signaling pathways. This study provides a critical scientific foundation for improving crop drought tolerance and ensuring food security.
Related Concept Videos
Responses to Drought and Flooding
Transcription Factors
Master Transcription Regulators
Amino Acid Catabolism
Transcription Elongation Factors
The transcription elongation is regulated via pausing of RNA polymerase on several occasions during transcription. In bacteria, these halts are necessary because the transcription of DNA into mRNA is coupled to the translation of that mRNA...
Cooperative Binding of Transcription Regulators

