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Researchers reported in a study presented in April 2017, that plants can perceive sound vibrations from running water moving through pipes, or water flowing through the ground, and then cause their roots to move exactly in that address.
In addition, the study team found that plants do not like certain noises and move away from those particular sounds.
Monica Gagliano, a researcher at the Center for Evolutionary Biology at the Australian Academy, explained how important this aspect of plants is, because without water they cannot survive.
“We use the common pea plant (Pisum sativum) as a model for our study and we placed the plant in a container that had two tubes at the base, giving it a choice of two directions for the growth of its roots ”, explained the biologist.
Then he added: "We exposed the plant to a series of sounds, including white noise, running water, and then a recording of running water under each tube, and we observed its behavior."
Faced with this, it was found that the plants knew where the source of the water was, since their root systems grew in that direction, and they did so, the biologist stressed, “only based on the detection of the sound of running water”.
"It was surprising and extraordinary to see that the plant could actually tell when the sound of running water was a recording and when it was real, as the plant did not like the recorded sound," he noted in his study.
In this regard, some previous studies have proposed that plants can read the human mind and know the intentions of the researcher. This was demonstrated by applying a truth machine to several of them and recording their reactions to different purposes and acts.
In the present study, researcher Monica Gagliano also showed that when the soil was wet, the plant did not respond to the sound of running water.
"With this we begin to see how complex the interactions of plants with sound are, when considering it in making behavioral decisions," said the scientist.
The research concluded that the perception of plants to certain sounds of nature explains why tree roots tend to invade sewer pipes.
The plant shows a perception of its environment much greater and much more complex than people usually think.
"In the animal world there is a strong call for awareness of how noise pollution negatively affects populations, and now we know that plants also need to be considered in these studies", concluded biologist Monica Gagliano.
The Epoch Times