BACTERIAL MORPHOLOGY Contd...
c). Spirals: They are spiral shaped bacteria. Some are curved rods that resembles comma. Eg: Vibrio cholerae .
Spirilla: Helical shape with a thick, rigid cell wall & flagella that resist in movement. Eg: Spirillum spp .
Spirochetes: Spiral shaped bacteria with a thin, flexible cell wall but as flagella. Eg: Treponema palladium.
fig: Vibrio cholerae