MLO-Mediated Ca2+ Influx Regulates Root Hair Tip Growth in Arabidopsis

    July 2025 in “ New Phytologist ”
    Sienna T. Ogawa, Weiwei Zhang, Christopher J. Staiger, Sharon A. Kessler
    Studysummary This study demonstrated that the FER/MLO signaling module regulates calcium dynamics and ROS accumulation in root hair growth, with the constitutively active MLO (faNTA) able to restore normal development and signaling in specific mutant genotypes, highlighting MLO15's role in root hair tip growth regulation.
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    Research cited in this study 12

    1. CPK1 Activates CNGCs Through Phosphorylation for Calcium Signaling to Promote Root Hair Growth in Arabidopsis Nature Communications · 2025
    2. Armadillo Repeat Only Proteins Are Crucial for the Function of Plant CNGC Channels bioRxiv (Cold Spring Harbor Laboratory) · 2025
    3. Root Hair Growth From the pH Point of View Frontiers in plant science · 2022
    4. A Temperature-Sensitive FERONIA Mutant Allele That Alters Root Hair Growth PLANT PHYSIOLOGY · 2020
    5. Multiple Cyclic Nucleotide-Gated Channels Coordinate Calcium Oscillations and Polar Growth of Root Hairs The Plant Journal · 2019
    6. CBL1-CIPK26-Mediated Phosphorylation Enhances Activity of the NADPH Oxidase RBOHC, but Is Dispensable for Root Hair Growth FEBS letters · 2018
    7. Erulus Is a Plasma Membrane-Localized Receptor-Like Kinase That Specifies Root Hair Growth by Maintaining Tip-Focused Cytoplasmic Calcium Oscillations The Plant Cell · 2018
    8. Light Sheet Fluorescence Microscopy Quantifies Calcium Oscillations in Root Hairs of Arabidopsis Thaliana Plant and Cell Physiology · 2017
    9. Arabidopsis CNGC14 Mediates Calcium Influx Required for Tip Growth in Root Hairs Molecular Plant · 2017
    10. Root Hair Growth: It's a One Way Street F1000 prime reports · 2015
    11. Local Positive Feedback Regulation Determines Cell Shape In Root Hair Cells Science · 2008
    12. Root Hair Growth in Arabidopsis Thaliana Is Directed by Calcium and an Endogenous Polarity Planta · 1997

    Related research 3

    1. Defective Control of Growth Rate and Cell Diameter in Tip-Growing Root Hairs of the RHD4 Mutant of Arabidopsis Thaliana Canadian Journal of Botany · 1999
    2. Microtubules Regulate Tip Growth And Orientation In Root Hairs Of Arabidopsis Thaliana The Plant Journal · 1999
    3. Root and Root Hair Growth in Relation to Calcium Supply and Mobility Botanical Gazette · 1972