Article
A peptide hormone required for Casparian strip diffusion barrier formation in Arabidopsis roots.
Science (New York, N.Y.) - 20 Jan 2017
Nakayama Takuya, Shinohara Hidefumi, Tanaka Mina, Baba Koki, Ogawa-Ohnishi Mari, Matsubayashi Yoshikatsu
Abstract excerpt
Plants achieve mineral ion homeostasis by means of a hydrophobic barrier on endodermal cells called the Casparian strip, which restricts lateral diffusion of ions between the root vascular bundles and the soil. We identified a family of sulfated peptides required for contiguous Casparian strip formation in Arabidopsis roots. These peptide hormones, which we named Casparian strip integrity factor 1 (CIF1) and...
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