Why is Mimosa shy? Under what circumstances is Mimosa shy?

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1. Why are you shy?

2. Under what circumstances would you be shy?

The reason why its leaves can be shy is because of the structure of its leaves. There is a structure called a leaf pillow under the small leaves. When stimulated by the outside world, the water in the leaf pillow will flow out and collapse, causing the petiole to droop and close, and the external stimulation disappears. Then the leaves will open again. The leaves may close when people touch them with their fingers, they may be stimulated by heavy rain, or they may be caused by external stimuli such as insects.

1. Why is it shy

Its leaves can close under external stimulation and then reopen, as if they are shy. The reason why it can be shy is because the structure of its leaves can have a "turgor effect". The part below the small leaves connected to the petiole has a relatively special structure. This structure can determine whether the leaves are closed or unfolded, which is the leaf pillow. , which is filled with many parenchyma cells and contains some cell fluid. When stimulated by the outside world, the leaves will vibrate. At this time, the water in the leaf pillow will flow to other places, and the lower part of the leaf pillow will deflate, causing the petiole to droop and close. When the external stimulation disappears, the water flows to the leaf pillow, causing it to be filled with water again, and its leaves will reopen.

2. Under what circumstances will you be shy

The leaves of Mimosa close up mainly due to external stimulation. When people touch the leaves with their fingers, the leaves will vibrate and shrink. In addition to being touched by people, when it is stimulated by heavy rain, the leaves are closed to reduce the damage of heavy rain. When insects climb up and want to eat the leaves, the leaves will also close.

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