Behavior of mitochondria, chloroplasts and their nuclei during the mitotic cycle in the ultramicroalga Cyanidioschyzon merolae.

The behavior of cell nuclei, mitochondria and chloroplasts was followed during the mitotic cycle in the primitive unicellular red alga Cyanidioschyzon merolae by epifluorescence microscopy after staining with 4',6-diamidino-2-phenylindole (DAPI) or 3,3'-dihexyloxacarbocyanine iodide (DIOC6), by fluorimetry using a video-intensified microscope photon-counting system (VIMPCS), and by electron microscopy. The cells were classified into five types...