Erulus Is a Plasma Membrane-Localized Receptor-Like Kinase That Specifies Root Hair Growth by Maintaining Tip-Focused Cytoplasmic Calcium Oscillations
May 2018
in “
The Plant Cell
”
TLDR ERULUS is crucial for root hair growth by controlling calcium levels.
The study investigated the role of ERULUS, a plasma membrane-localized receptor-like kinase, in root hair growth, revealing that ERULUS was crucial for maintaining tip-focused cytoplasmic calcium oscillations necessary for proper root hair development. This finding challenged previous models that suggested ERULUS was involved in ammonium homeostasis via tonoplast localization. The research demonstrated that ERULUS's primary function was linked to calcium signaling, not ammonium homeostasis. The study involved 215 wild-type, 195 eru-3, and 264 eru-3+ERU-GFP root hairs, providing a robust dataset that highlighted the importance of calcium signaling in plant cell growth processes.
