This mutant Venus flytrap mysteriously lost its ability to “count” to 5 - fivenewscrypto
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vendredi 27 janvier 2023

This mutant Venus flytrap mysteriously lost its ability to “count” to 5

This mutant Venus flytrap mysteriously lost its ability to “count” to 5
vendredi 27 janvier 2023
Comparing stimulation of a Venus flytrap and the mutant DYSC. Credit: Ines Kreuzer, Rainer Hedrich, Soenke Scherzer

In 2011, a horticulturist named Mathias Maier stumbled across an unusual mutant of a Venus flytrap, a carnivorous plant that traps and feeds on insects. Scientists recently discovered that the typical Venus flytrap can actually "count" to five, sparking further research on how the plant manages this remarkable feat. The mutant flytrap might hold the key. According to a new paper published in the journal Current Biology, this mutant flytrap doesn't snap closed in response to stimulation like typical Venus flytraps.

"This mutant has obviously forgotten how to count, which is why I named it Dyscalculia (DYSC)," said co-author Rainer Hedrich, a biophysicist at Julius-Maximilians-Universität Würzburg (JMU) in Bavaria, Germany. (It had previously been called "ERROR.")

As we've reported previously, the Venus flytrap attracts its prey with a pleasing fruity scent. When an insect lands on a leaf, it stimulates the highly sensitive trigger hairs that line the leaf. When the pressure becomes strong enough to bend those hairs, the plant will snap its leaves shut and trap the insect inside. Long cilia grab and hold the insect in place, much like fingers, as the plant begins to secrete digestive juices. The insect is digested slowly over five to 12 days, after which the trap reopens, releasing the dried-out husk of the insect into the wind.

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