BACTERIAL MORPHOLOGY Contd...

SHAPE & ARRANGEMENT

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                                                  

                                              fig: Treponema pallidum   at high resolution
                                               

                                         Fig:  Vibrio cholerae

                                                  fig:  Treponema  pallidum   


                                        fig: Spirillum spp

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