Shining Proof: Light-Activated Electrophysiological Verification of Plant Transfection’ Current plant transfection tools There are well-developed protocols for plant genome editing (CRISPR/Cas9) and post-transcriptional gene silencing, as well as for animal and bacterial systems. However, my interest is in finding the way to deliver genetic engineering components into the mature plant cells to be able to alter their genome or gene expression. Coincidentally, it is challenging in general. The delivery method in this case should also cause minimal tissue damage, not opening the doors to fungal infection, and, simultaneously, overcome ordinary and lignified cell walls.