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that they use to communicate and protect themselves. Kind of like smells, these compounds repel hungry herbivores and warn neighboring plants of incoming assailants.
This was a big gap in our understanding of plant chatter: We knew how plants send messages, but not how they receive them. As you can see in the video above, the undamaged plants received the messages of their injured neighbors loud and clear, responding with bursts of calcium signaling that rippled across their outstretched leaves.are bean-shaped cells on plant surfaces that form stomata, small pores that open up to the atmosphere when plants 'breathe' in COplants were exposed to Z-3-HAL, guard cells generated calcium signals within a minute or so, after which mesophyll cells picked up the message.
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