Categories: world

This brainless slime learns and remembers by slipping things from their environment

Slim form can easily be one of the most remarkable forms on our planet. They are neither plants, animals nor fungi, but different species of complex, single-celled amoebases in the prototype. Sometimes they form colonies that can grow, move and even exhibit a strange form of intelligence. Even without a nervous system, they can learn about subjects they encounter, retain that knowledge and also communicate it with other forms of mucus. Now, a team of scientists at the French National Scientific Research Center (CNRS) has been thinking how: cysts actually absorb the substance in their veins. Researchers at the CNRS Center for Research on Animal Cognition performed their experiments on a fascinating little colleague called Physarum polycephalum a single-cell, multi-core blob, and a popular candidate for studying intelligence for mischief. (Here you can see it navigating in a maze. Cool!) The team had a clue. They had previously observed that P. polycephalum communicated information on substances with other mucous membranes when they came out to each other and melted in their venous networks. This meant that the information was sent via the veins. For this next step in the research, a similar experimental setting was used. Slime mold blocks were placed near food, separated by a substance that they would have to crawl over &#821 1; in this case salt. Salt is not harmful to slime molds, but they do not seem very keen on it and take their time to crawl over it compared to a salt-free path. As…

Slim form can easily be one of the most remarkable forms on our planet. They are neither plants, animals nor fungi, but different species of complex, single-celled amoebases in the prototype. Sometimes they form colonies that can grow, move and even exhibit a strange form of intelligence.

Even without a nervous system, they can learn about subjects they encounter, retain that knowledge and also communicate it with other forms of mucus. Now, a team of scientists at the French National Scientific Research Center (CNRS) has been thinking how: cysts actually absorb the substance in their veins.

Researchers at the CNRS Center for Research on Animal Cognition performed their experiments on a fascinating little colleague called Physarum polycephalum a single-cell, multi-core blob, and a popular candidate for studying intelligence for mischief. (Here you can see it navigating in a maze. Cool!)

The team had a clue. They had previously observed that P. polycephalum communicated information on substances with other mucous membranes when they came out to each other and melted in their venous networks.

This meant that the information was sent via the veins.

For this next step in the research, a similar experimental setting was used. Slime mold blocks were placed near food, separated by a substance that they would have to crawl over &#821

1; in this case salt.

Salt is not harmful to slime molds, but they do not seem very keen on it and take their time to crawl over it compared to a salt-free path.

As previously discovered, when slime molds ooze over salt, it seems to learn that it will not harm them and is less contradictory about transferring it. This is the information they send to their friends.

There were several parts to the experiment. In the first, the team took 20 pieces and cut them all in half, with the halves divided into two training systems. In the experimental group, the blobs were fed a nutritious oatmeal that had been mixed with salt for six days. The control group was fed a salt-free sea rule.

After six days, the team took measurements of the salinity of the blood vessels. As you would expect, the salt group had 10 times more salt than the control group.

In the second experiment, another set of blobs must pass an agar bridge to reach food. The experimental group’s bridge was salt, while the control group had a clear path.

After six days of training on these bridges, both groups were presented with a salt bridge. The experimental group crossed the bridge faster than the control group, showing that they were used to the salt and knew that it would not harm them.

Finally, the team took 20 blood samples and injected half with water and half with a saline solution. After just two hours, the blobs injected with salt appeared as the blobs that had been on a six day salt training.

The team also investigated how long it would take slime forms to get rid of salt When their diet was switched to uncharted oatmeal and found that the blobs would secrete the salt in about two days.

Something other interesting also emerged. Slim shapes can become dormant when the environmental conditions are less than ideal. Although active mucus nozzles secreted the salt after two days, blobs that the team induced to sleep, it remained as long as a full month.

“We have presented the first evidence of long-term staging in non-neural organisms and gave first glimpse of the underlying mechanism,” the researchers wrote in their paper.

“We are convinced that habituation is just an example of cognitive abilities that can be shared by most living organisms. As Godfrey-Smith would say,” there are many ways to process information and control behavior, a central nervous system is a way , but not the only way. “

The research has been published in The Royal Society’s Philosophical Transactions B: Biological Sciences ]

Share
Published by
Faela