Neisseria gonorrhoeae, also known as gonococcus (singular) or gonococci (plural), is a species of Gram-negative diplococci bacteria first isolated by Albert Neisser in 1879. [3]

The causative agent of the sexually transmitted infection gonorrhea, Neisseria gonorrhoeae, is a gram-negative diplococcus that appears under a microscope as two round cells joined together after a …

Jul 25, 2023 · Neisseria gonorrhoeae is a Gram-negative bacterium, which means it appears pink under the microscope when subjected to the Gram staining technique. The morphology of N. gonorrhoeae …

Sep 15, 2025 · Gonorrhea is diagnosed by the presence of Gram-negative coffee bean-shaped diplococci inside or outside of leukocytes. The slide may also reveal white blood cells and other …

4 days ago · There are two types of Neisseria: pathogenic and non-pathogenic. Neisseria gonorrhoeae is a pathogenic Gram-negative bacterium that causes gonorrhea.

Jun 10, 2013 · Figure: Neisseria gonorrhoeae in New York City Agar (LCAT). For men, a gram-stained smear of urethral discharge (exudate) showing intracellular Gram-negative diplococci is diagnostic.

N. gonorrhoeae expressing pili are wrinkled and well defined with a clear edge, while nonpilated colonies have more diffuse edges and are more glistening. Due to rapid pilus phase variation, colonial …

Taken from a culture, this Gram-stained photomicrograph revealed the presence of numerous gram-negative diplococcal bacteria that were identified as Neisseria gonorrhoea. Gonorrhea is a sexually …

Further testing (oxidase, Gram stain, carbohydrate use) is needed to differentiate N. gonorrhoeae from N. meningitidis. Carbohydrate utilization of Neisseria gonorrhoeae: N. gonorrhoeae will oxidise …

Apr 29, 2025 · Neisseria gonorrhoeae, the causative agent of gonorrhea, is a Gram-negative bacterium with distinct features that influence its identification and treatment. Unlike Chlamydia, Neisseria …