This protocol outlines a simple method for analyzing calcium signals in plants generated by feeding hemipteran insects, such as aphids. Arabidopsis thaliana transformed with the GFP calcium biosensor GCaMP3 allow for the real-time in vivo imaging of calcium dynamics with a high temporal and spatial resolution.
Vincent, T. R., Canham, J., Toyota, M., Avramova, M., Mugford, S. T., Gilroy, S., Miller, A. J., Hogenhout, S., Sanders, D. Real-time In Vivo Recording of Arabidopsis Calcium Signals During Insect Feeding Using a Fluorescent Biosensor. J. Vis. Exp. (126), e56142, doi:10.3791/56142 (2017).