Monday, June 11, 2012

Do plants really talk to each other?

Plants have been known for reacting to light by growing towards them. Earlier this year, Exeter University even found cabbage plants emit a volatile gas to warn others of danger such as caterpillars or garden shears. But do they really communicate to each other producing human inaudible sound?

Researching the possible conversation between plants, scientists at Bristol University used powerful loudspeakers to listen to corn saplings, and heard clicking sounds coming from their roots. To verify the same, when they suspended their roots in water and played a continuous noise at a similar frequency to the clicks, they found the plants grew towards it. As per the researchers, this is their first solid evidence that plants have their own language of noises, inaudible to human ears, the Daily Mail reported. As per the research, sound and vibration play an important role in the life of plants.

Thinking logically, it makes sense for plants to produce and respond to sound vibrations, as it gives them information about the environment around them. Moreover, sound waves can travel easily through soil and it could be a way of picking up threats such as drought from their neighbours further away.

So, next time when you see plants around you swaying in breeze, don't take it in a usual way, they may actually be conversing with each other as they not only respond to sound but also communicate actively by 'clicking' noises.

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