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Updated: Sep 2, 2025

Wide-Field, Real-Time Imaging of Local and Systemic Wound Signals in Arabidopsis
Published on: June 4, 2021
Integration of long-range signals in plants: A model for wound-induced Ca2+, electrical, ROS, and glutamate waves
Hiraku Suda1, Masatsugu Toyota2
1Department of Biochemistry and Molecular Biology, Saitama University, Saitama, Japan.
Abstract:
Plants show long-range cytosolic Ca2+ signal transduction in response to wounding. Recent advances in in vivo imaging techniques have helped visualize spatiotemporal dynamics of the systemic Ca2+ signals and provided new insights into underlying molecular mechanisms, in which ion channels of the GLUTAMATE RECEPTOR-LIKE (GLR) family are critical for the sensory system. These, along with MECHANOSENSITIVE CHANNEL OF SMALL CONDUCTANCE-LIKE 10 (MSL10) and Arabidopsis H+-ATPase (AHA1) regulate the propagation system. In addition, membrane potential, reactive oxygen species (ROS), and glutamate waves operate in parallel to long-range signal transduction. We summarize these findings and introduce a model that integrates long-range Ca2+, electrical, ROS, and glutamate signals in systemic wound responses.
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