Members of the electric bacteria (Shewanella) genus possess capabilities allowing the use of a variety of other electron acceptors for respiration. These include thiosulfate, sulfite, or elemental sulfur, as well as fumarate, arsenic, manganese, chromium, uranium, and iron.
Ever since finding out about this bacterium I’ve been constantly mulling over different electric life forms. The concept was cool but there are quite a few complications in order to make it work. And the common problem I’ve found besides storing electricity was that the creature would have no reliable source of energy, other than biting a power line which wouldn’t appear in nature. So what if I designed a plant that generates and stocks electricity? I could have made a photovoltaic plant, but photosynthesis already exists which makes it kind of pointless and less efficient to boot. Instead how about a plant that generates electricity when stressed?
The Piezoelectric Effect is the ability of certain materials to generate an electric charge in response to applied mechanical stress. There may not be a protein that can do this but it doesn’t matter as I can just hand-wave it. It’s not as if my character will dissect the plant to see what it’s made of right? Crap! He’s a scientist...
Which brings me to my query what would be the best shape/design for such a plant and where would it live to make the most out of this ability?
So far what I could think of was a dark environment so photosynthesis wouldn’t be the better option. Flexible trees that flutter in the wind or catch waves or currents underwater or even bushes that grow better when creatures brush through them.