Device for observing magnetism tendency bacteria habit

Abstract

The invention relates to a viewing device of magnetotactic bacteria habit, which belongs to the microbiology field. The invention is provided with a magnetotactic bacteria bacterial suspension container, which is characterized in that the container is a transparent cuboid structure, the left portion and the right portion of the container are respectively provided with a left magnet coil and a right magnet coil, one end of the left magnet coil is connected with the positive pole of a direct current power supply, and the other end of the left magnet coil is connected with the negative pole of the direct current power supply through a slide rheostat R1, one end of the right magnet coil is connected with the positive pole of the direct current power supply through a switch K1, and the other end of the right magnet coil is connected with the negative pole of the direct current power supply through a switch K2 and a slide rheostat R2. The strength and direction of electromagnetic field in the container is changed through adjusting resistance value of the slide rheostat and the current direction of the left and the right magnet coil, which are convenient for viewing growth habit of magnetotactic bacteria in different magnetic field conditions under oxygen dissolution condition.

Description

technical field

[0001] The invention relates to the field of microbiology, in particular to a cultivation device for magnetotactic bacteria. Background technique

[0002] Magnetotactic bacteria are a class of Gram-negative bacteria with flagella that can move. They are widely distributed and can be found in lakes, oceans and even wet soils. Its most important morphological feature is the intracellular magnetosome chain, which refers to the magnetic particles surrounded by membranes generated in the cells of magnetotactic bacteria. Each magnetotactic bacterial cell contains one or more magnetosome chains, which are located close to the cell wall and generally distributed along the long axis of the cell. The magnetosomes of most magnetotactic bacteria have relatively high purity and are Fe-containing 3 o 4 Ferrite magnetic particles, a few of which contain Fe 3 S 4 Iron-sulfur magnetic particles, the size of a single particle is between 35-120nm. It has a large specific ...

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