Circular Chloroplast DNA from Euglena gracilis ( electron microscopy / density gradient centrifugation / mitochondrial DNA )

@inproceedings{ManningCircularCD,
  title={Circular Chloroplast DNA from Euglena gracilis ( electron microscopy / density gradient centrifugation / mitochondrial DNA )},
  author={Jerry E. Manning and DAVID R. WOLSTENHOLMEt and Robert Spranger Ryan and Oliver Christopher Richards}
}
Chloroplast DNA of the protozoan flagellate, Euglena gracilis, exists as circular molecules, 40 um in contour length, as shown by electron microscopy and buoyant density analyses. Cytochemical studies (1-3) and cell fractionation and buoyant density analyses (4-8) have shown that chloroplasts of microorganisms and of higher plants contain DNA distinct from that of the nuclear DNA of these organisms. Electron microscope examinations of DNA from chloroplast fractions of several species have… CONTINUE READING