In this video we observe several bacteria of the genus Spirillum
Curiously they all are immobile
We do not know the reason of the above mentioned immobility.
I am grateful to Andrés Zornoza Zornoza
Responsible of the Laboratory for Bioindicacion and Process Control in EDAR - Valencia - SPAIN
Their invaluable assistance in the identification of this bacterium
Oblique light and phase contrast