The abstract is read at the publisher; the summary is JClub's.
Low ambient temperature at 16°C suppresses Arabidopsis thaliana seed germination by engaging endogenous abscisic acid signaling, requiring ABI3 and ABI5.
- Why it matters: Temperature-dependent control of germination is well known, but the molecular link between low temperatures and ABA signaling pathways has remained unclear.
- What they did: The study tested germination and ABA responses under low ambient temperature, then used genetic analyses and interaction assays to show ABI3/ABI5 physically associate with CBF1, CBF2, and CBF3.
- The result: CBFs are essential for low-temperature- and ABA-mediated germination repression, and CBFs synergize with ABI3/ABI5 while antagonizing ABI5 through direct ICE1 binding, enabling coordinated transcriptional regulation of downstream targets.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.