A few days ago I saw a special kind of bacteria called magnetotactic bacteria in the internet. Its a special polyphyletic group of bacteria that orient themselves along the earth’s magnetic field lines. So they can only move north or south in a one dimensional motion. They do this for staying in the zone where there is perfect concentration of oxygen in the pool or water body. They make small crystals of magnetite or gergite in their small organells called magnetosome. They align these crystals to become a mini magnetic compass which can move only north or south. But you can change the direction by taking a magnet near to them. See the video.
Here’s how to extract them:
You can control their motion while viewing them under a microscope too. But folscope has two magnets near the place of slide. So the bacteria might just move up and down only which might be a problem to see them. How to solve this problem? Give your ideas in the comments please.
An important thing:
Is 108935-02-AK in my post ‘Old observations‘ a Naegleria fowleri (the brain eating amoeba) or indicate it’s presence? Please check it. Because the water was collected from a pond of saintmartin’s island where many people live and many go to visit every year. I am embedding the video here for you: