statoliths Archives

We often think of the trees in our yard as solid collections of molecules that grow and die robotically, and that is all. As scientists investigate plants more deeply and apply new technologies, they are learning that plants seem to “think,” “see,” “hear,” and even make sounds. A new study shows that plant seeds hear the sound of rain.

Plants have cellular structures called statoliths that enable them to sense changes in their environment. These structures are starch-filled envelopes that shift and settle to the bottom of plant cells. They help the plant determine which direction to grow and help germinating seeds know when to grow and which direction to send their roots.

The sound of rain jostles the statoliths in plant seeds, causing them to germinate 30 to 40% faster than seeds in the same environment without the sound of rain. The researchers exposed 8,000 rice seeds to rain sounds and compared them to seeds in the same environment without the sound. The result was that plant seeds hear the sound of rain.

The more scientists study the world around us, the more they find processes that cannot be the result of blind chance. The Bible doesn’t go into detail about the methods God used to set the world around us to work. The reason is obvious when you consider that the Bible was written for ancient humans who could not understand the processes God used, and they didn’t need to.

Everywhere we look in the world, we see a wonder-working hand has gone before. This is not only true of the natural world but also of the instructions God has given in His word about how we should live.

Reference: Scientific American, July/August 2026, pages 14-15.

Have you ever wondered why plants grow up instead of down? Take a bean, a grain of corn, or any other seed and lay it on top of wet soil until it germinates. The root will grow out of the seed and turn downward into the soil. The shoot will go upward. It doesn’t matter which direction you position the seed when it germinates. Even if the seed germinates in a place where there is no light, the root still goes down, and the stem goes up.

After the root and stem are growing, take the seed and turn it upside down with the root pointing straight up. The root will turn around and head back down into the soil. Take a potted plant and lay it on its side so that it’s horizontal. If the dirt doesn’t fall out, the plant will make a turn and go upward and its roots downward.

Trees on a hillside don’t grow perpendicular to the slope. They grow upward, and the roots grow downward. If there is a landslide and the tree is left horizontal, it will turn and start growing upward again. Amazing, isn’t it?

This ability of plants to know up from down is called gravitropism. Only in recent years has science begun to learn the secrets of how it works. In the cells of the plant, there are particles called statoliths. They normally sit on the bottom of gravity sensing cells. When the plant is tipped, they move and send a message to the growth regulating cells that the direction of gravity has changed. The roots react positively and go toward the source of gravity. The stem responds negatively and goes in the opposite direction.

This explanation is an oversimplified description of why plants grow up. How a plant with no brain or central nervous system communicates the message of which way to grow from one cell to another is still not fully understood. Little by little, science is uncovering the mysteries of life. We still have much to learn, but it’s obvious that plants show evidence of design by a Master Engineer.
–Roland Earnst © 2018

Tag: statoliths

Plant Seeds Hear the Sound of Rain

Why Plants Grow Up