Why does the mimosa close when touched? Will the mimosa close at night?

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1. The reason why mimosa flowers close when touched

2. Will Mimosa close at night?

The mimosa will close at night. There are probably three reasons why it closes when touched. There is a special organ called the "leaf pillow" on the petiole of Mimosa pudica, in which many thin-walled cells grow. They are very sensitive and will produce a closing reaction when they feel a stimulus. Its own physiological response also causes its leaves to close. In addition, when the external light is relatively weak, the water in the mimosa that supports the expansion of the leaves will flow to both sides, causing the leaves to temporarily close.

1. The reason why the mimosa closes up when touched

The reason why the mimosa closes up when touched is not because it is really shy. It is just a metaphor. In fact, closing its leaves when it is stimulated by the outside world is a way for it to protect itself. Because the growth environment in its place of origin is very harsh, it can only protect itself in this way. So how does Mimosa protect itself? The secret lies mainly in the petiole of Mimosa.

There is a special organ on the petiole of Mimosa pudica called "leaf pillow". There are many thin-walled cells growing in the leaf pillow. These cells themselves are very sensitive. As long as they are slightly shaken or touched by the outside world, The stimulation generated by the touch will start a closing reaction.

Then there is the physiological reaction of Mimosa itself. When its leaves are touched, the cell fluid contained in the parenchyma cells in the leaf pillow will flow to other places, reducing cell expansion. In this way, the pressure on the parenchyma cells will become smaller, and the leaves will become tightly closed and the petioles will droop.

In addition, when the external light is relatively weak, the water in the Mimosa leaf pillow that supports the expansion of the leaves will flow to the gaps on both sides under the action of external forces, which will also cause the leaves to close. But this phenomenon will not last long and will recover in about two minutes.

2. Will Mimosa close at night

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The leaves of Mimosa will close at night. Because there is no light at night, Mimosa needs a suitable temperature to expand its leaves and perform photosynthesis in the sun. But the temperature is relatively low at night, and photosynthesis cannot occur. In order to keep warm, the leaves of Mimosa will close at night.

2. Will Mimosa close at night?

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