Plant Alarm Signals in Action! Rapid Systemic Ca2+ Waves Elicited by Wounding in Arabidopsis (WT vs. Mutant)

Original video: https://youtu.be/i3ziunm68bM

Witness plant communication in real-time! This video reveals the fascinating phenomenon of rapid systemic calcium signaling in Arabidopsis plants. We trigger alarm signals by applying Spodoptera litura oral secretions to wounds (W+OS) and observe the response in both wild-type (WT) and glr3.3 glr3.6 mutant plants.

See how in WT plants, a wound signal rapidly propagates as a fluorescent Ca2+ wave to distant leaves within just 1 minute! Astonishingly, this systemic response is completely absent in glr3.3 glr3.6 mutants. This visual comparison dramatically illustrates the crucial role of GLR3.3 and GLR3.6 in plant systemic defense signaling. Perfect for plant biology enthusiasts, researchers, and anyone interested in plant communication!

Keywords: Calcium signaling, Spodoptera litura, glr3.3 glr3.6, mutant, wild-type, Plant defense, Plant communication, Fluorescent imaging, Arabidopsis

Citation:

Na Xue, Che Zhan, Juan Song, Yong Li, Jingxiong Zhang, Jinfeng Qi, Jianqiang Wu, The glutamate receptor-like 3.3 and 3.6 mediate systemic resistance to insect herbivores in Arabidopsis, Journal of Experimental Botany, Volume 73, Issue 22, 8 December 2022, Pages 7611–7627, https://doi.org/10.1093/jxb/erac399

Published on: 10 October 2022

Attribution 4.0 International — CC BY 4.0 - Creative Commons