magnetotactic การใช้

• The latter includes extracellular precipitation and formation of magnetosomes by magnetotactic bacteria.
• Magnetotactic bacteria use iron to create magnetite in magnetosomes.
• It is a bio-mineral produced by and found in magnetotactic bacteria.
• Magnetotactic bacteria produce their magnetic particles in chains.
• Various experiments have clearly shown that magnetotaxis and aerotaxis work in conjunction in the magnetotactic bacteria.
• Pure magnetite particles are biomineralized in magnetosomes, which are produced by several species of magnetotactic bacteria.
• As a result of this process, increased iron levels correlate with increased production of magnetotactic bacteria.
• There are also examples of magnetotactic bacteria that contain hundreds of magnetosomes, many more than required for orientation.
• The particle morphology of magnetosome crystals varies, but is consistent within cells of a single magnetotactic bacterial species or strain.
• It is sulfate-reducing and is notable for producing intracellular single-domain-sized magnetite particles, making it magnetotactic.
• Magnetosomes are bacterial microcompartments found in magnetotactic bacteria that allow them to sense and align themselves along a magnetic field ( magnetotaxis ).
• FMR spectroscopy of chains of cultured magnetotactic bacteria compared to sediment samples are being used to infer magnetofossil preservation over geological time frames.
• "D . magneticus " is particularly noted for its anisotropic, bullet-shaped magnetosomes, unusual amongst magnetotactic bacteria.
• The first description of magnetotactic bacteria appeared in 1963 in a publication of the Microbiology Institute ( ) of the University of Pavia written by Salvatore Bellini.
• Magnetite-producing magnetotactic bacteria are usually found in an anaerobic conditions, using nitric oxide, nitrate, or sulfate as a final acceptor for electrons.
• In sediments, a lot of the magnetic remanence is carried by minerals that were created by magnetotactic bacteria, so rock magnetists have made significant contributions to biomagnetism.
• While a single magnetosome chain would appear to be ideal for magneto-aerotaxis, a number of magnetotactic bacteria have magnetosomes or magnetosome arrangements that depart from the ideal.
• Existence of magnetotactic bacteria was first suggested in the 1960s, when Salvatore Bellini of the University of Pavia discovered bacteria in a bog that appeared to align themselves with the sedimentary layers.
• Three general crystal morphologies have been reported in magnetotactic bacteria on the basis : roughly cuboidal, elongated prismatic ( roughly rectangular ), and tooth-, bullet-or arrowhead-shaped.
• These bacteria have been the subject of many experiments : they have even been aboard the Space Shuttle to examine their magnetotactic properties in the absence of gravity, but a definitive conclusion was not reached.