|MadSci Network: Botany|
I found this comment on the "Scientific American" article "Plants Cannot Think And Remember" (http://www.scientificamerican.com/blog/post.cfm? id=plants-cannot-think-and-remember-bu-2010-07-16). "I watched an interesting documentary a year or so ago about antelopes dying in some fenced in African reserves, but not others. It turns out they were being poisoned by the shrubbery. Once this particular type of plant had been overgrazed by the antelopes, it released a chemical compound into the atmosphere, signaling other plants to increase their production of toxins." I was curious wheather the above claim in the documentary is true and, if so, by what mechanism do plants release this chemical compound when overgrazed, and how do they sense when they've been overgrazed?
Re: Do shrubs poison other plants when overgrazed, and if so, how?
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