Light Microscopy Images
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DIC image of Micrasterias

Penium 鈥榮 nucleus (arrow) is located in the cell center, also known as the isthmus.
2-4 large chloroplasts surround the nucleus.

Differential Interference contrast (DIC) image of Penium after 24 hour treatment with
the anti-microtubule drug, APM

Penium cells placed in a mannitol-based buffer

Live protoplasts of Penium. A Differential Interference Contrast or DIC- image of
the protoplast (arrow).