PMID: 46128Jan 1, 1975

Morphologic observations of mycoplasmas and Neisseria gonorrhoeae in associated growth patterns

American Journal of Clinical Pathology
Y C FaurM E Wilson


Mycoplasma hominis and T-colony mycoplasmas were observed growing among or developing within gonococcal colonies on primary isolation plates streaked for detection of N. gonorrhoeae in urogenital specimens. The frequency of such association of mycoplasmas with gonococci was as high as 84% among patients screened for gonorrhea in several Social Hygiene Clinics of the City of New York, Department of Health, Bureau of Venereal Disease Control. The individual morphology of both mycoplasmal and gonococcal colonies was characteristic when viewed through the light microscope, and their associated growth was maintained throughout numerous serial transfers on agar culture media. Electron microscopy of such interrelated colonies revealed nipple-like projections on the gonococcal cell walls, to which the mycoplasmas appeared to be firmly attached. These morphologic observations are presented and discussed.

Related Concepts

Projections and Predictions
Science of Morphology
Mycoplasmatales (bacterium)
Bacteriological Techniques
Cell Wall
Mycoplasma Infections
Electron Microscopy, Diagnostic
Electron Microscopy
Genitourinary System

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Sexual Dimorphism in Neurodegeneration

There exist sex differences in neurodevelopmental and neurodegenerative disorders. For instance, multiple sclerosis is more common in women, whereas Parkinson’s disease is more common in men. Here is the latest research on sexual dimorphism in neurodegeneration

HLA Genetic Variation

HLA genetic variation has been found to confer risk for a wide variety of diseases. Identifying these associations and understanding their molecular mechanisms is ongoing and holds promise for the development of therapeutics. Find the latest research on HLA genetic variation here.

Super-resolution Microscopy

Super-resolution microscopy is the term commonly given to fluorescence microscopy techniques with resolutions that are not limited by the diffraction of light. Here are the latest discoveries pertaining to super-resolution microscopy.

Genetic Screens in iPSC-derived Brain Cells

Genetic screening is a critical tool that can be employed to define and understand gene function and interaction. This feed focuses on genetic screens conducted using induced pluripotent stem cell (iPSC)-derived brain cells.

Brain Lower Grade Glioma

Low grade gliomas in the brain form from oligodendrocytes and astrocytes and are the slowest-growing glioma in adults. Discover the latest research on these brain tumors here.

CD4/CD8 Signaling

Cluster of differentiation 4 and 8 (CD8 and CD8) are glycoproteins founds on the surface of immune cells. Here is the latest research on their role in cell signaling pathways.

Alignment-free Sequence Analysis Tools

Alignment-free sequence analyses have been applied to problems ranging from whole-genome phylogeny to the classification of protein families, identification of horizontally transferred genes, and detection of recombined sequences. Here is the latest research.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.