magnetotactic bacteria


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magnetotactic bacteria

[mag‚ned·ə‚tak·tik bak′tir·ē·ə]
(microbiology)
A group of bacteria containing iron mineral crystals in intracellular structures, called magnetosomes, which enable the bacteria to orient and migrate along magnetic field lines.
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Our microrobots are either inspired from nature or directly use living microorganisms such as magnetotactic bacteria and sperm cells for complex micro-manipulation and targeted therapy tasks," Dr.
The cosmic dust grains occupy the intergalactic space and are thought to be formed of magnetotactic bacteria identified according to their spectral signatures.
Magnetotactic bacteria are simple, single-celled organisms that are found in almost all bodies of water.
Chains of single-domain magnetite crystals produced by magnetotactic bacteria represent one example of a mineral biosignature that has received attention recently (Sukumaran 2005).
8:00 MOTION OF A MAGNETOTACTIC BACTERIA **, Timothy Kurtz *(1) and Trinanjan Datta (2), (1) Department of Biology and (2) Department of Chemistry and Physics, Augusta State University, Augusta, GA 30904.
The researchers focused their study on magnetotactic bacteria, which contain chains of magnetic crystals, called magnetosomes.
Simmons studies magnetotactic bacteria, so named because they take in iron and sulfur from their environment to form internal chains of iron minerals, magnetite ([Fe.
Such magnetotactic bacteria typically live between the high-oxygen surface and low-oxygen floor of ponds or sediments.
Similar chains are seen on Earth in magnetotactic bacteria.
Similar magnetite crystal chains are seen in Earthly bugs called magnetotactic bacteria, which live near the surface of shallow water sediments.
The authors discovered that about a quarter of the magnetites from the meteorite are identical to magnetites produced on Earth by magnetotactic bacteria strain MV-1.
Examples of the former are some Fe sulfides and the 'rusticles' draping the wreck of the Titanic, while the latter are the magnetotactic bacteria.