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科学为什么·英语30篇(1)

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Why Do Certain Fungi Glow Softly in the Dark Forest Floor?

Why Do Certain Fungi Glow Softly in the Dark Forest Floor?

为什么某些真菌会在幽暗的森林地表发出微光?

  1. Bioluminescent fungi produce light through a chemical reaction involving luciferin and oxygen.
  2. This glow appears only in warm, humid forests where decaying wood provides nutrients and moisture.
  3. Scientists think the light attracts insects that help spread fungal spores to new logs.
  4. The reaction is slow and steady—not flashing like fireflies—so it looks like a faint greenish mist.
  5. Only about 80 species of fungi worldwide glow, and most belong to the genus Mycena.
  6. Their light intensity depends on temperature, pH, and the age of the decaying material.
  7. Unlike bacteria or jellyfish, fungi do not regulate light with nerves or proteins called photoproteins.
  8. Researchers have isolated the genes responsible and inserted them into plants to test bio-lighting.
  9. This natural glow fades quickly once the wood dries or cools, showing its tight link to ecology.
  10. It reminds us that even silent, still organisms can harness chemistry to communicate across darkness.
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