From what I understand it’s a pheromone(?) reaction that causes the grass to send water and nutrients lower down into the plant, so they can more easily survive being grazed on / lawnmowered.
There are evolutionary mechanisms that let many plants excrete foul tasting or smelling compounds when they’re alerted to nearly danger, from their other leaves being eaten, or those nearby that release warning compounds.
Plants also work in tandem with fungus and other microbial life to sort of message needs to get support for survival, possibly defense as well.
A warning to do what? Run?
From what I understand it’s a pheromone(?) reaction that causes the grass to send water and nutrients lower down into the plant, so they can more easily survive being grazed on / lawnmowered.
There are evolutionary mechanisms that let many plants excrete foul tasting or smelling compounds when they’re alerted to nearly danger, from their other leaves being eaten, or those nearby that release warning compounds.
Plants also work in tandem with fungus and other microbial life to sort of message needs to get support for survival, possibly defense as well.
There are a bunch of people who’ve bought into the enchanting myth that plants feel things and “scream in pain”.
It’s not really surprising since most people don’t know botany or plant psychology, but love a nice TED talk.
Plants Neither Possess nor Require Consciousness: Trends in Plant Science