A chloroplast retrograde signal, 3'-phosphoadenosine 5'-phosphate, acts as a secondary messenger in abscisic acid signaling in stomatal closure and germination.
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Elife. 2017 Mar 21;6:e23361. doi: 10.7554/eLife.23361.
Elife. 2017.
PMID: 28323614
Free PMC article.