RICHARD J. GREEN / SCIENCE PHOTO LIBRARY RICHARD J. GREEN / SCIENCE PHOTO LIBRARY
Light micrograph (LM) showing conjugation in Spirogyra sp. green algae. In this image one can clearly see the conjugation tube and protoplast fusion. Conjugation is a form of sexual reproduction in which micronuclei are exchanged by direct cell-to-cell contact or by a bridge-like connection between two cells. Fast green stain. Magnification 400x at 35mm.
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