In summer, in the woods or grass, fireflies float gracefully and reflect the stars with their beautiful flashes, which is a well-known bioluminescencephenomenon. However,plants can also shine. Have you ever seen them? A few years ago, in Dantu County, Jiangsu Province, manypeople saw several luminous willows. During the day, these rotten stumps on the edge of the field are not noticeable at all, but at night, they glow with mysterious, light blue fluorescence, which lasts for a long time even if the wind and rain are fierce, the heat and the cold are fierce. How can these ordinary willows shine? The mystery was finally solved through research. It turns out that it is not the willow itself that glows, but the mycelium of a fungusparasitic on it, Armillariapseudomellea. Because this fungus glows,people named it “Armillaria”. This kind of fungus is very common in Jiangsu, Zhejiang and Anhui. It specially finds some stumps to live in. The white mycelium that looks like cotton wool sucks theplant’s nutrients and glowsproudly when it is full. Just because it can’t be seen in broad daylight,people often don’t know each other. Today, the “Armillaria tablets” and “Armillaria mixture” you saw in thepharmacy are medicines made of this luminescent bacteria, which have considerable curative effects on cholecystitis and hepatitis! If you are a sailor, in the dark night, sometimes you will see a milky white or blue-green flash on the sea surface, which is usually called sea fire. Deep-sea divers will also meet charming flashes like stars in the sky at the bottom of the sea, which is really unique! It turns out that this is the bioluminescence emitted by some algae, bacteria and small animals in the ocean in droves. It is said that at the Paris International Expo in 1900, there was a unique exhibition room in the Optical Museum. There was no lamp, but it was bright andpleasing to the eye. It turned out that the light from bacteria cultured in glass bottles was amazing. Why doplants shine? This is because theseplants have a special luminescent substance-fluorescein and luciferase. Biological oxidation should be carried out in theprocess of life activities. Fluorescein is oxidized under the action of enzymes, and energy is released at the same time. This energy is expressed in the form of light, which is the biological light we see. Biological light is a kind of cold light, its luminous efficiency is very high, 95% can be converted into light, and the light color is soft and comfortable. Inspired by cold light, scientists simulated theprinciple of bioluminescence and created many new efficient light sources.
A breeze blows to the willows by the river. What?
A breeze is blowing, and the willows by the river are swaying gently, as if talking to nature. Their gracefulposture dances in the breeze, and the leaves rustle as if telling their own feelings.
The tender green leaves of willow trees sparkle in the sun, reflecting the clear river, forming a quiet and beautifulpicture.
The breeze gently brushed the willow leaves, bringing a touch of refreshment and comfort, makingpeople feel like they are in the willow forest and feel the gentleness and beauty of nature. Such beautiful scenery makespeople feel relaxed and happy.
