Laboratory Exercise 6 Characterization of Bacterial Cultures Flashcards
Cultural characteristics
Agar plate
Pigmentation of the colony (color)
Surface characteristic (texture)
Shape of colony
Size of colony (mm)
Form of edge of colony (margin)
Form of elevation
Odor
Imparts pigment to agar medium
Cultural characteristics
Agar slant
Amount of growth
Color
Opacity
Form
Cultural characteristics
Agar plate
Surface characteristics
Dry or powdery
Rough
Smooth or glistening
Wrinkled
Mucoid
Cultural characteristics
Agar plate
Shape of colony
Punctiform
Circular or round
Filamentous
Irregular
Rhizoid
Spindle
Cultural characteristics
Agar plate
Form of edge of colony
Entire
Undulate
Lobate
Erose
Filamentous
Curled
Cultural characteristics
Agar plate
Forms of elevation
Flat
Raised
Convex
Pulvinate
Umbonate
Cultural characteristics
Agar slant
Amount of growth
Scanty or slight
Moderate
Abundant
None
Cultural characteristics
Agar slant
Opacity
Opaque
Transparent
Translucent
Cultural characteristics
Agar slant
Form
Filiform - uniform or even growth along line of inoculation
Echinulate - margin of growth is toothed appearance
Beaded - separate colonies along line of inoculation
Effuse - thin growth, veil-like, spreading
Arborescent - branched, tree-like
Rhizoid - root-like
Cultural characteristics
Broth culture
Surface - Pellicle, Membranous, Flocculent, Ring
Subsurface - Turbid, Granular, Flocculent, Flaky
Sediment - None, Granular, Flocculent, Flaky, Viscid
Amount of growth - None, Slight, Moderate, Abundant
Pigmentation
Yellow bacteria quadrant streak plate
SA, BS, SM, EC
Green quadrant streak plate (or in general)
PA
