Fig 5. Cells of Pseudokirchneriella subcapitata of the eight-autospore type in the presence of Cr(VI).

Cells were observed by differential interference contrast microscopy (a1-d1) or DAPI staining (a2-d2). (a), multinucleated cell with four nuclei; (b and c), multinucleated cells with eight nuclei; and (d), eight autospores in a parental cell. Scale bar in (a1), 10 μm. Scale bar in (a1) applies to (b-d).