Chloroplast and mitochondrial DNA in a brown alga Egregia menziesii.
Chloroplasts and mitochondria of the brown alga Egregia menziesii were studied with the electron microscope. In both organelles, 15-25-A fibrils with DNA characteristics are found within areas of electron transparency. In each chloroplast there are two DNA-containing areas, one at each tip of the chloroplast. This localization, the shape and size of each DNA-containing area, and its close association with lamellae in a nondividing chloroplast are noted. One or occasionally two DNA-containing areas are found within the mitochondrion and they are compared with a similar structure in the chloroplast.
D002467:Cell Nucleus; D002473:Cell Wall; D002736:Chloroplasts / Q000032:analysis*; D004247:DNA / Q000032:analysis*; D056890:Eukaryota / Q000032:analysis*; D006651:Histocytochemistry; D008854:Microscopy, Electron; D008928:Mitochondria / Q000032:analysis*
D004247:DNA