69 citations
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March 2003 in “Journal of Experimental Botany” This study found that salinity stress in Arabidopsis thaliana root hairs may inhibit hair extension through changes in the tip-focused Ca(2+) gradient, while cytosolic pH remains unaffected.
March 2008 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” This study found that a positive feedback loop involving RHD2, reactive oxygen species, and calcium ions helps maintain root hair growth sites and influences cell shape in Arabidopsis thaliana.
January 2025 in “Nature Communications” This study discovered that calcium dependent protein kinase 1 (CPK1) directly activates cyclic nucleotide-gated channels 5, 6, and 9, promoting root hair growth in Arabidopsis by regulating Ca²⁺ signaling.
200 citations
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November 1997 in “Planta” This study found that while a tip-focused calcium gradient influences localized growth in root hairs and pollen tubes, it is not the primary determinant of growth direction in root hairs of Arabidopsis thaliana.
25 citations
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May 2020 in “EMBO reports” This review discusses the potential roles of calcium in the regulation of pluripotent and tissue-specific stem cells but reports no new experimental results, highlighting areas for future research.