Electrical signals as an option of communication with plants: a review

As plants are living forms that cannot communicate their condition (stress, requirements) as animals, they have been studied to find chemical or physical signals that could help understand the plant requirements for several purposes such as substances and food production. Different research supports electrical signals (ES) related to different stress conditions in plants as damage or drought. Some others have identified and classified these signals generated by stress condition using diverse Artificial intelligence (AI) techniques. Finally, some other researches have used electricity as a stimulator obtaining a response as chemical compounds production, gene expression and growth-promoting. In a few words, ES from plants can be interpreted, which could also be sent back to plants. Based on the bibliographic revision in this work, it is proposed that experiments and research, where the ES serves to activate chemical and physiological mechanisms or as elicitor, are required to consider the electrical signals as a possible communication pathway with plants.