Evidence for plasmid like DNA in a filamentous fungus, the ascomycete Podospora anserina.

The existence of plasmid like DNA was demonstrated in senescent mycelia of Podospora anserina (strain s) by biophysical and electronmicroscopic methods. According to their contour length of about 1.4 and 2.7 micron respectively the molecular weight for the monomer is in the range of 3.10(6).