Colony Morphology Enterobacter aerogenes

Colony Morphology Shape

Size:

Margin (edge):

Elevation:

Light transmission/Color:

Texture:

Appearance:

Colony Size Dependent on the:

the growth medium

the number of colonies present on a plate

punctiform small medium large

Colony Texture Possible textures include:

smooth to wrinkled

rough

Granular

Colony Appearance

Shiny or dull

Colony Light

Transmission/Color The light transmission through

colonies can range from:

complete (transparent)

intermediate (translucent)

completely lacking (opaque)

Colonies can come in a rainbow of

colors.

Serratia marcescans

Colony shape and size: round and medium

Margin: irregular

Elevation: raised

Color: red center,

white edge

Texture: moist, smooth

Bacillus cereus Colony shape and size:

irregular, large

Margin: undulate to curled

Elevation: flat to raised

Color: opaque

Texture: smooth

Escherichia coli Colony shape and size:

Irregular, Small to medium

Margin: undulate

Elevation: slightly raised

Color: translucent

Texture: Shiny, smooth

Micrococcus luteus

Colony shape and size:

circular, pinhead

Margin: entire

Elevation: convex

Color: beige to yellow

Texture: shiny, smooth

Staphylococcus epidermidis

Colony shape and size: small and round

Margin: entire

Elevation: convex

Color: off-white

Texture: Smooth

Pseudomonas fluorescens

Colony shape and size: irregular, small to

medium

Margin: smooth to wavy

Elevation: flat to raised

Color:Transparent to light yellow

Texture: shiny, smooth

Bacillus Megaterium

Colony shape and size: round

and medium

Margin: smooth

Elevation: flat to raised

Color:beige to white

Texture: smooth

Sarcina aurantiaca

Colony shape and size: small

and round

Margin:

Elevation: slightly raised

Color:orange-yellow

Texture:

Citrobacter freundii

Colony shape and size: circular, small to

medium

Margin:smooth

Elevation: convex

Color:translucent

Texture: smooth

Providencia alcalifaciens

Colony shape and size:

Margin:

Elevation:

Color:

Texture: