Colonial variants of Neisseria gonorrhoeae differing in color and opacity characteristics are
distributed differently between male urethral and female cervical cultures. Colonial …

METHOD Plates of experimental media were streaked with a saline suspension of gono-
cocci in such a way that well-isolated colonies were formed. After 40 hours in-cubation in a …

Cultures of Neisseria gonorrhoeae started with type 1 colonies were examined for the
presence of plasmids. The cells were grown in a biphasic system containing 8-14C-adenine …

Interactions of Neisseria gonorrhoeae with nonleukocytic eucaryotic cells including tissue
culture cells (either primary or continuous lines), human sperm, and buccal mucosal cells …

Ion-exchange chromatography was used to isolate a fraction from disrupted gonococci
which reacts with sera from patients with gonococcal disease in complement-fixation and gel …

The fate of gonococci in polymorphonuclear leucocytes (PMN) from men with acute
gonorrhoea was studied using the electronmicroscope to look for ultrastructural damage in …

The relative virulence of isogenic clones of colony type 1 (TI)(piliated) and colony type 4
(T4)(nonpiliated) gonococci was assessed in organ cultures of human fallopian tubes. The …

Neisseria gonorrhoeae is highly host-specific. Apart from the successful experimental
infection of chimpanzees (Lucas, Chandler, Martin and Schmale, 1971) and infection of …

Variants of one strain of Neisseria gonorrhoeae, grown in vivo or in vitro, that have been
previously shown to differ in infectivity, serum resistance, and capsule production were …

Neisseria gonorrhoeae was cultivated in mammalian cell cultures in an effort to determine if
this environment will elicit a T4→ T1 transition. Of four avirulent (T4) isolates tested, only …