Article
A prion-like protein regulator of seed germination undergoes hydration-dependent phase separation.
Cell - 5 Aug 2021
Dorone Yanniv, Boeynaems Steven, Flores Eduardo, Jin Benjamin, Hateley Shannon, Bossi Flavia, Lazarus Elena, Pennington Janice G, Michiels Emiel, De Decker Mathias, Vints Katlijn, Baatsen Pieter, Bassel George W, Otegui Marisa S, Holehouse Alex S, Exposito-Alonso Moises, Sukenik Shahar, Gitler Aaron D, Rhee Seung Y
Abstract excerpt
Many organisms evolved strategies to survive desiccation. Plant seeds protect dehydrated embryos from various stressors and can lay dormant for millennia. Hydration is the key trigger to initiate germination, but the mechanism by which seeds sense water remains unresolved. We identified an uncharacterized Arabidopsis thaliana prion-like protein we named FLOE1, which phase separates upon hydration and allows the...
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