title: Circular chloroplast DNA from Euglena gracilis.
abstract: Chloroplast DNA of the protozoan flagellate, Euglena gracilis, exists as circular molecules, 40 mum in contour length, as shown by electron microscopy and buoyant density analyses.
mesh_terms: D002458:Cell Fractionation; D002499:Centrifugation, Density Gradient; D002736:Chloroplasts / Q000032:analysis*; D004247:DNA / Q000032:analysis*; D004269:DNA, Bacterial / Q000032:analysis; D003720:Densitometry; D004926:Escherichia coli / Q000032:analysis; D005056:Euglena gracilis / Q000032:analysis*; D008837:Micrococcus / Q000032:analysis; D008854:Microscopy, Electron; D008928:Mitochondria / Q000032:analysis
chemical_list: D004269:DNA, Bacterial; D004247:DNA