Magnetosome-containing bacteria living as symbionts of bivalves
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چکیده
منابع مشابه
Magnetosome dynamics in magnetotactic bacteria.
Diffusive motions of the magnetosomes (enveloped Fe3O4 particles) in the magnetotactic bacterium Aquaspirillum magnetotacticum result in a very broad-line Mössbauer spectrum (T approximately 100 mm/s) above freezing temperatures. The line width increases with increasing temperature. The data are analyzed using a bounded diffusion model to yield the rotational and translational motions of the ma...
متن کاملProbing the Mechanical Properties of Magnetosome Chains in Living Magnetotactic Bacteria
The mechanical properties of cytoskeletal networks are intimately involved in determining how forces and cellular processes are generated, directed, and transmitted in living cells. However, determining the mechanical properties of subcellular molecular complexes in vivo has proven to be difficult. Here, we combine in vivo measurements by optical microscopy, X-ray diffraction, and transmission ...
متن کاملHabits of magnetosome crystals in coccoid magnetotactic bacteria.
High-resolution transmission electron microscopy and electron holography were used to study the habits of exceptionally large magnetite crystals in coccoid magnetotactic bacteria. In addition to the crystal habits, the crystallographic positioning of successive crystals in the magnetosome chain appears to be under strict biological control.
متن کاملGenetics and cell biology of magnetosome formation in magnetotactic bacteria.
The ability of magnetotactic bacteria (MTB) to orient in magnetic fields is based on the synthesis of magnetosomes, which are unique prokaryotic organelles comprising membrane-enveloped, nano-sized crystals of a magnetic iron mineral that are aligned in well-ordered intracellular chains. Magnetosome crystals have species-specific morphologies, sizes, and arrangements. The magnetosome membrane, ...
متن کاملSnapping magnetosome chains by asymmetric cell division in magnetotactic bacteria.
The mechanism by which prokaryotic cells organize and segregate their intracellular organelles during cell division has recently been the subject of substantial interest. Unlike other microorganisms, magnetotactic bacteria (MTB) form internal magnets (known as magnetosome chain) for magnetic orientation, and thus face an additional challenge of dividing and equipartitioning this magnetic recept...
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ژورنال
عنوان ژورنال: The ISME Journal
سال: 2014
ISSN: 1751-7362,1751-7370
DOI: 10.1038/ismej.2014.93