Electron Microscopy of Small Cells: Mycoplasma hominis

Mycoplasma hominis: growth, reproduction, and isolation of small viable cells.

Improved methods for studying the growth of Mycoplasma hominis (ATCC 14027) have been developed, involving modified growth conditions and preparation of the organisms under minimally distorting conditions. Cells so prepared from batch cultures show relatively uniform exponential growth and appear to be dividing by binary fission; but pleomorphic forms appear upon further incubation. Similar beh...

Characteristics of Mycoplasma Hominis

Ultrastructure of Mycoplasma hominis.

Anderson, Douglas R. (National Cancer Institute, Bethesda, Md.), and Michael F. Barile. Ultrastructure of Mycoplasma hominis. J. Bacteriol. 90:180-192. 1965.-Both thin-sectioning and negative staining were used in an electron microscopic study of the morphology of pleuropneumonia-like organism (PPLO) strain HEp-2 (Mycoplasma hominis, type I) grown in an artificial liquid medium. The morphology ...

Scanning-beam electron microscopy of Mycoplasma pneumoniae.

The morphology and the existence of a growth cycle of Mycoplasma pneumoniae have not been clearly established. There is disagreement as to whether this organism exists as a spherical or filamentous form, and whether it progresses from filamentous to spherical forms as the organism ages. A scanning-beam electron microscope (SEM) was utilized to provide detailed observations of the cycle of morph...

Mycoplasma hominis in pregnancy.

One hundred and seventyone antenatal patients were examined for the presence of ;large colony' mycoplasmas in the vagina, and for complement-fixing antibody to Mycoplasma hominis. In 25 patients the findings before and after delivery were compared. In patients from whom M. hominis was grown, antibody was twice as common after delivery, and the development of antibody was sometimes associated wi...