Mimosa Plants Have Long Term Memory, Can Learn, Biologists Say

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Jan 16, 2014 by Sci-News.com

By using the same experimental framework normally applied to test learnt behavioral responses in animals, biologists from Australia and Italy have successfully demonstrated that Mimosa pudica – an exotic herb native to South America and Central America – can learn and remember just as well as it would be expected of animals.

Mimosa pudica at the Botanical Garden KIT, Karlsruhe, Germany. Image credit: H. Zell / CC BY-SA 3.0.

Mimosa pudica at the Botanical Garden KIT, Karlsruhe, Germany. Image credit: H. Zell / CC BY-SA 3.0.

Mimosa pudica is known as the Sensitive plant or a touch-me-not. Dr Monica Gagliano from the University of Western Australia and her colleagues designed their experiments as if Mimosa was indeed an animal.

They trained Mimosa‘s short- and long-term memories under both high and low-light environments by repeatedly dropping water on them using a custom-designed apparatus.

The scientists show how Mimosa plants stopped closing their leaves when they learnt that the repeated disturbance had no…

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