Diplococcus Collection

Streptococcus mutans, SEM
Streptococcus mutans. Coloured scanning electron micrograph (SEM). S. mutans is a coccoid shaped, Gram-positive, anaerobic bacteria that is part of the normal bacteria flora of the mouth

Colony of Streptococcus Pneumoniae, 1906 (litho)
3501898 Colony of Streptococcus Pneumoniae, 1906 (litho) by German School, (20th century); Private Collection; (add.info.: Bacteria constitute a large domain of prokaryotic microorganisms)

Microscopic view of Neisseria gonorrhoeae. Neisseria gonorrhoeae typically infects the mucous membranes causing infections such as urethritis, cervicitis, salpingitis, pelvic inflammatory disease

Microscopic view of diplococcus bacterium

Gonorrhoea bacteria, TEM C016 / 9425
Gonorrhoea bacteria. Transmission electron micrograph (TEM) of a diplococcal pair of Neisseria gonorrhoeae bacteria. N. gonorrhoeae is the bacteria that is responsible for the sexually transmitted

Meningitis C bacteria, TEM
Meningitis C bacteria. Coloured transmission electron micrograph (TEM) of Neisseria meningitidis serogroup C bacteria (yellow) trapped in vitrified water (blue)

Haemophilus influenzae bacteria, TEM
Haemophilus influenzae bacteria. Coloured transmission electron micrograph (TEM) of Haemophilus influenzae b (Hib) bacteria (red) in vitrified water (pink)

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Discover the microscopic world of Diplococci, a family of bacteria known for their distinctive round, paired shape. Diplococci include notable members like Streptococcus mutans, infamous for causing dental caries, and Neisseria gonorrhoeae, the culprit behind sexually transmitted gonorrhoea. The SEM image showcases the intricate surface structures of these bacteria, while TEM images reveal their internal ultrastructure. In 1906, the first colony of Streptococcus pneumoniae was documented, highlighting the historical significance of diplococci in medical research. Other notable diplococci include Haemophilus influenzae, a common cause of respiratory infections, and the meningitis-causing Neisseria meningitidis.