Diplococcus

From Wikipedia, the free encyclopedia

A diplococcus (plural diplococci) is a round bacterium (a coccus) that typically occurs in the form of two joined cells. Examples are gram-negative Neisseria sp., and gram-positive Streptococcus sp..^[1]

Its name comes from diplo, meaning double, and coccus, meaning berry.

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

References

↑ Richard A. Harvey (Ph.D.) (2007). Microbiology. Lippincott Williams & Wilkins. pp. 395–. ISBN 978-0-7817-8215-9.

Microbiology: Bacteria

Pathogenic bacteria

Bacterial disease
Coley's Toxins
Exotoxin
Lysogenic cycle

Human flora

Substrate preference

Oxygen preference

Structures

Cell envelope	Cell membrane Cell wall: Peptidoglycan NAM NAG DAP Gram-positive bacteria only: Teichoic acid Lipoteichoic acid Endospore Gram-negative bacteria only: Bacterial outer membrane Porin Lipopolysaccharide Periplasmic space Mycobacteria only: Arabinogalactan Mycolic acid

Outside envelope	Bacterial capsule Slime layer S-layer Glycocalyx Pilus Fimbria

Composite	Biofilm

Shapes

M: BAC

bact (clas)

gr+f/gr+a (t)/gr-p (c)/gr-o

drug (J1p, w, n, m, vacc)

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