July 2024 in “PLANT PHYSIOLOGY” In this study on Arabidopsis, the researchers identified CIPK13 and CIPK18 as crucial genes for root hair growth, finding that deficiencies in these genes resulted in shorter root hairs and reduced growth rates due to altered calcium oscillations.
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.
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March 2004 in “Trends in Plant Science” This paper discusses how NADPH oxidase and phospholipase D are important for root hair growth, with reactive oxygen species from NADPH oxidase activating calcium ion channels in root hairs.
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.
March 2017 in “bioRxiv (Cold Spring Harbor Laboratory)” This study found that auxin regulates reactive oxygen species-mediated root hair growth by activating transcription factors and enzymes that affect cell elongation.