TLDR A specific protein complex increases the activity of a plant enzyme, but this action is not required for plant root hair growth.
The study demonstrated that the CBL1-CIPK26 complex phosphorylated and activated the NADPH oxidase RBOHC, enhancing ROS production in a Ca2+-dependent manner, specifically at residues S318 and S322. However, this phosphorylation was not necessary for normal root hair growth in Arabidopsis, as plants expressing a modified RBOHC S318/322A enzyme still showed sufficient ROS production for RH differentiation. This indicated that while CBL1-CIPK26-mediated phosphorylation is critical for RBOHC activity, it is dispensable for RH growth, suggesting alternative regulatory mechanisms in plants.
37 citations
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March 2018 in “Trends in Plant Science” pH, calcium, and reactive oxygen species regulate plant cell growth, with key roles for NADPH oxidases and plasma membrane H+-ATPases.
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February 2018 in “CB/Current biology” ERULUS controls root hair growth by regulating cell wall composition and pectin activity.
July 2025 in “New Phytologist” MLO proteins help regulate calcium and ROS levels, promoting root hair growth in Arabidopsis.
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September 2014 in “Molecular Plant” CLE40 and CRN/CLV2 pathways have opposite effects on root growth in Arabidopsis.
May 2017 in “bioRxiv (Cold Spring Harbor Laboratory)” The peach gene pCTG134 helps control the interaction between auxin and ethylene hormones during fruit ripening.
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October 2017 in “Frontiers in plant science” The peach gene CTG134 helps control the interaction between auxin and ethylene, which could lead to new agricultural chemicals.
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August 2015 in “Dermatologic Surgery” The cross beam laser is a useful tool for safely measuring scalp stretchiness to improve hair transplant results.
