With what speed are pollen grains ejected from a bunchberry flower?

All this happens within 0.4 of a thousandth of a second.

"Bunchberry Dogwood" flowers are only about one-tenth of an inch high (about 2.5 millimeters). Scientists know that this flower blooms in a very "explosive way." This is done by the flower to throw the pollen further.

The scientists decided to find out how fast this flower must have bloomed. So they decided to record the blooming process of this small flower with a high-speed camera that can record 1,000 images in one second. But the camera turned out to be too slow.

Only after using a camera that can take 10,000 pictures per second they can see what is happening clearly. They see the flower buds opening, and as it happens, the stamen (stamens) of the flower glide so fast that the pollen in the stalk flies into the air.

All this happens within 0.4 of a thousandth of a second. It was more than 100 times faster than the movement of the chameleon's tongue when it caught his lunch. The flower stamens glide so fast they exert a force of more than 2,400 times the gravity of pollen.

Pollen is a generative means of propagation and propagation of flowering plants. Pollen is a modification of sperm cells. Cytologically, pollen is a cell with three nuclei, each named a vegetative nucleus, generative nucleus I, and generative nucleus II. Cells in pollen are protected by two layers (called intine for the inside and exine in the outside) to prevent it from becoming dehydrated.

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Bunchberry flower

Pollen

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Class: High School

Subject: Biology

Keywords: flower, bunchberry, pollen

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