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Title: Diplococcus  
Author: World Heritage Encyclopedia
Language: English
Subject: Coccus, Neisseria, Bacteria, Axenic, Exposing Microorganisms in the Stratosphere
Publisher: World Heritage Encyclopedia


A diplococcus (plural diplococci) is a round bacterium (a coccus) that typically occurs in the form of two joined cells. Examples of gram-negative diplococci are Neisseria sp., Haemophilus, Moraxella catarrhalis, Acinetobacter, and Brucella. Examples of gram-positive diplococci would be Streptococcus pneumoniae and enterococcus.[1]

The word diplococcus is derived from "diplo", meaning double, and "coccus", meaning berry (referring to its spherical, ovoid, and generally round shape).

In former times, a bacterial genus Diplococcus was recognized, but it is not used anymore.


  1. ^ Richard A. Harvey (Ph.D.) (2007). Microbiology. Lippincott Williams & Wilkins. pp. 395–.  

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