The transcription factor OsERF74 positively regulates drought resistance by modulating abscisic acid catabolism in rice.

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.

• Publication year

  2026

• Venue

  Journal of plant physiology

• Publication date

  2026-01-20

• Fields of study

  Biology, Agricultural and Food Sciences, Medicine, Environmental Science

• Identifiers
  DOI 10.1016/j.jplph.2026.154710PMID 41579628
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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