The abstract is read at the publisher; the summary is JClub's.
CsMADS1 is a positive regulator of ABA- and seasonal drought–linked citrate accumulation in citrus fruit, with CsSnRK2.6 phosphorylation at Ser140 enhancing its activity.
- Why it matters: Seasonal drought during fruit enlargement raises acidity, but how ABA signaling connects to citrate buildup and vacuolar acidification in citrus remained unclear.
- What they did: The study identified CsMADS1 as drought/ABA–induced and citrate-correlated, then used overexpression and silencing, promoter binding to CsAN1, and kinase assays showing CsSnRK2.6 phosphorylates CsMADS1 at Ser140.
- The result: CsAN1 activation of CsPH8 supports vacuolar acidification and citrate accumulation; in citrus calli, CsSnRK2.6 mainly promoted citrate under ABA, and CsMADS1S140D showed stronger activity than CsMADS1.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.