Can plants perceive noises or touch
botany That is why it helps plants when we talk to them
Rape, cabbage and beans, among other things, thrive in the research greenhouse of the University of Hamburg. The plants are obviously doing very well. And that without anyone saying anything. Talking to the vegetables - that sounds pretty weird at first. But the biologist Julia Kehr knows:
“That is actually good! Because it produces sound waves that can be good for plants. And secondly, when you talk, you emit CO₂. And that's what plants turn into sugar during photosynthesis. So talking to plants is a good thing. There are already scientific studies on this. "Julia Kehr, biologist
A houseplant certainly has more of the small talk than the pansy in the balcony box, where the wind can quickly dissolve the coveted CO2 into air.
Mozart likes wine
There are also scientific studies that are supposed to prove that wine and tomatoes, for example, like to listen to music. According to this, a vintner in Florence has increased his yield and improved the taste of his grapes by playing recordings of Mozart, Mahler and Vivaldi to his plants. Other winemakers report similar experiences.
Red tomatoes, on the other hand, are said to be into Simply Red pop music. Nice stories. According to biologist Julia Kehr, however, they all have a small catch:
“Plants doesn't really matter what kind of music is being played. In principle, it acts like a mechanical stimulus on the membranes that surround the plant cells. This means that the plant is easily stressed and that is good for you in case of doubt. So it doesn't matter whether Mozart or hard rock - it just can't be too loud, because then the membranes will be damaged. "Julia Kehr, biologist
Do plants have feelings?
Sound waves that promote growth, carbon dioxide that helps photosynthesis - it all sounds pretty sober and emotionless at first. And not because plants actually have feelings. In fact, the green stuff has no neurons and no brain that can process stimuli. Nevertheless, plants are by no means simply knitted, emphasizes Julia Kehr:
“They perceive a lot, they also react to it. They even learn from what they perceive. That is why one always ascribes a certain level of intelligence to plants. But they cannot process the whole thing into feelings and summarize them into emotions. "Juli Kehr, biologist
Professor Frantisek Baluska from the University of Bonn has his doubts. He is convinced that plants, animals and humans are much more similar than classical biology teaches. Therefore, he thinks it is possible that plants could also have feelings:
“We can't ask her. But the plant under stress or wounding synthesizes substances that are pain-relieving in humans or animals. Why else would they do that? So I would rather say: yes! But you can't prove it. "Frantisek Baluska, University of Bonn
Plant neurobiology is the name of his research direction, which is very controversial within science. Plant cells are therefore very similar to the nerve cells of animals and humans, the so-called neurons. Because, according to Frantisek Baluska:
“The plant cell is somehow able to do whatever the neurons do. Plants do not have organs like animals or humans, but they have cells in the root tip arranged in such a way that they act in a similar way to an animal brain. It has little to do with human or animal intelligence, but it is also there to ensure that the plants survive. "Frantisek Baluska, University of Bonn
Julia Kehr from the University of Hamburg also sees certain similarities between plants, animals and humans. One example is the root networks in the forest. If a tree is attacked by beetles, for example, it sends out messenger substances. They are spread via the underground network and act like a warning signal for neighboring trees. However, it is unclear whether the trees do this on purpose.
Can we eat plants?
Frantisek Baluska from the University of Bonn agrees. Nevertheless, he considers plants to be so complex organisms that eating kohlrabi, garlic and the like could have a certain aftertaste ...
“We have to eat something living. And whether that is as painful with plants as it is with animals or humans, that is always the question. But I guess they somehow have a problem ... "
Julia Kehr, on the other hand, like most scientists, is much more relaxed about it:
“Plants can do great things. But you don't have to try to equate a plant with an animal. You don't have to wait for the fruit to fall ripe from the tree. You can eat lettuce leaves or carrots or other vegetables without a guilty conscience. Plants are not animals and not people! "
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