Bacterial Morphology and Types

Coccus, Bacillus, Spiral

Three basic morphology of bacteria

Binary Fission

bacteria multiplies via

Micrometers

measurement used for bacteria

Staphylococci, Streptococci, Diplococci

Types of Cocci

Staphylococci

Cocci that forms clusters or grape like masses

Staphylococcus Aureus

Example of Staphylococci

0.5 to 1.5 micrometers

Size of staphylococcus aureus

Spherical

shape of staphylococcus aureus

Purple

Color of staphylococcus aureus

Grape like

Arrangement of staphylococcus aureus

Streptococci

Cocci that forms chains

Streptococcus Pyogene

Example of Streptococci

0.6 to 1.0 micrometers

Size of streptococcus pyogene

Round to ovoid coccus

Shape of streptococcus pyogene

Purple

Color of streptococcus pyogene

In chains

Arrangement of streptococcus pyogene

Diplococci

Cocci that divide to form pairs

Streptococcus Pneumoniae

Example of Diplococci

0.5 to 1.25 micrometers

Size of streptococcus pneumoniae

Round to ovoid coccus

Shape of streptococcus pneumonia

Purple

Color of streptococcus pneumoniae

In pairs

Arrangement of streptococcus pneumoniae

Streptobacilli, Diplobacilli, Coccobacilli, Vibrio

types of bacilli

Streptobacilli

Bacilli that occurs in chains

Bacillus Subtilis

Example of Streptobacilli

4-10 micrometers in length and 0.25-1.0 in diameter

Size of bacillus subtilis

Rod shaped

Shape of bacillus subtilis

Purple

Color of bacillus subtilis

Small clumps or chains

Arrangement of bacillus subtilis

Diplobacilli

Bacilli that occurs in pairs

Mycobacterium Tuberculosis

Example of Diplobacilli

2-4 micrometers in length and 0.2-0.5 in width

Size of Mycobacterium Tuberculosis

Rod shaped

Shape of mycobacterium tuberculosis

Red

Color of mycobacterium tuberculosis

Heaps of small rods

Arrangement of mycobacterium tuberculosis

Snapping

A type of Diplobacilli that occurs when 2 bacilli forms a V shaped arrangement

Slipping

A type of diplobacilli that occurs when 2 bacilli are arranged side by side

Coccobacilli

Short thick, oval shaped bacilli

Escherichia Coli

Example of Coccobacilli

1-2 micrometers in length and 0.5 in radius

Size of Escherichia Coli

Rod shaped

Shape of Escherichia Coli

Pink

Color of Escherichia Coli

Singly or in Pairs

Arrangement of Escherichia Coli

Vibrio

Comma shaped rods

Vibrio Cholera

Example of Vibrio

1-3 micrometers in length and 0.5-0.8 micrometers in diameter

Size of Vibrio Cholera

Comma

Shaped of vibrio cholera

Pink

Color of vibrio cholera

A flagellum at one cell pole as well as pili

Arrangement of vibrio cholera

Spirillum

The only type of spiral morphology

Campylobacter Jejuni

Example of Spirillum that forms an S shaped or bird in flight

4 micrometers by 0.2-0.5 in width

Size of Campylobacter Jejuni

Bird in Flight

Shape of Campylobacter Jejuni

Pink

Color of Campylobacter Jejuni

A single flagellum at once or both poles

Arrangement of campylobacter jejuni