Article
A plant lipocalin promotes retinal-mediated oscillatory lateral root initiation.
Science (New York, N.Y.) - 24 Sept 2021
Dickinson Alexandra J, Zhang Jingyuan, Luciano Michael, Wachsman Guy, Sandoval Evan, Schnermann Martin, Dinneny José R, Benfey Philip N
Abstract excerpt
In Arabidopsis, de novo organogenesis of lateral roots is patterned by an oscillatory mechanism called the root clock, which is dependent on unidentified metabolites. To determine whether retinoids regulate the root clock, we used a chemical reporter for retinaldehyde (retinal)–binding proteins. We found that retinal binding precedes the root clock and predicts sites of lateral root organogenesis. Application of...
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