Subcellular localization of [Ca²⁺]_cyt and H₂O₂ in <i>G. biloba</i> leaves upon herbivory.

<p><b>A</b>. False color images from confocal laser scanning microscopy shows that upon herbivory [Ca²⁺]_cyt was found mainly in the cytosol, indicated by the calcium orange dye as green patches not associated with any specific organelle. Metric bar = 10 µm. <b>B</b>. H₂O₂ localization by Amplex Red shows a clear associations with microbodies (probably peroxisomes) and/or mitochondria but not with chloroplasts. Metric bar = 20 µm. In both panels, single arrows indicate the dye, double arrows indicate chloroplasts.