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In this study, researchers found that the efflux of calcium in root hairs of Arabidopsis thaliana, particularly through the ER-localized ACA2 and ACA7, is crucial for modulating cytoplasmic calcium signals and enabling proper root hair growth, with disruptions leading to impaired elongation.

This review discusses the role of reactive oxygen species in regulating oscillating apoplastic pH gradients and growth in plant root hairs and pollen tubes, reporting no new experimental results.

This study found that in Arabidopsis root hairs, oscillating cytoplasmic potassium dynamics precede growth oscillations, suggesting a complex interplay with calcium signaling and microfilament structure in regulating root hair growth.

This review outlines the current understanding of how pH contributes to root hair development and reports no new experimental findings.

In this study, researchers found that coordinated intercellular Ca2+ signaling among basal stem cells in mice is crucial for cell cycle progression and tissue-wide communication during epidermal regeneration.