Results 111 to 120 of about 715 (124)
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Iron-limited growth and kinetics of iron uptake in Magnetospirillum gryphiswaldense
Archives of Microbiology, 1996Growth and magnetite formation in Magnetospirillum gryphiswaldense MSR-1 were found close to the maximum at an extracellular iron concentration of 15-20 microM. Ferrous iron was incorporated by a slow, diffusion-like process. Several iron chelators including various microbial siderophores were unable to promote transport of iron into the cells.
D, Schüler, E, Baeuerlein
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ACS Nano, 2013
Magnetotactic bacteria biosynthesize magnetite nanoparticles of high structural and chemical purity that allow them to orientate in the geomagnetic field. In this work we have followed the process of biomineralization of these magnetite nanoparticles.
Fdez-Gubieda, María Luisa +6 more
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Magnetotactic bacteria biosynthesize magnetite nanoparticles of high structural and chemical purity that allow them to orientate in the geomagnetic field. In this work we have followed the process of biomineralization of these magnetite nanoparticles.
Fdez-Gubieda, María Luisa +6 more
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Genetic improvement of Magnetospirillum gryphiswaldense for enhanced biological removal of phosphate
Biotechnology Letters, 2017To improve its phosphate accumulating abilities for phosphate recycling from wastewater, a magnetotactic bacterium, Magnetospirillum gryphiswaldense, was genetically modified to over-express polyphosphate kinase.Polyphosphate kinase was over-expressed in the bacterium.
Yanping Zhou +5 more
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Environmental Microbiology, 2010
Summary Magnetotactic bacteria are present at the oxic–anoxic transition zone where opposing gradients of oxygen and reduced sulfur and iron exist. Growth of non‐magnetotactic lithoautotrophic Magnetospirillum strain J10 and its close relative magnetotactic
Geelhoed, J.S. +4 more
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Summary Magnetotactic bacteria are present at the oxic–anoxic transition zone where opposing gradients of oxygen and reduced sulfur and iron exist. Growth of non‐magnetotactic lithoautotrophic Magnetospirillum strain J10 and its close relative magnetotactic
Geelhoed, J.S. +4 more
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Environmental Microbiology, 2012
Summary Magnetotactic bacteria synthesize magnetic particles called magnetosomes that cause them to orient to their external magnetic fields. However, the physiological significance and other possible functions of these magnetosomes have not been explored in detail.
Fang Fang, Guo +5 more
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Summary Magnetotactic bacteria synthesize magnetic particles called magnetosomes that cause them to orient to their external magnetic fields. However, the physiological significance and other possible functions of these magnetosomes have not been explored in detail.
Fang Fang, Guo +5 more
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Biosynthesis of gold nanoparticles by biosorption using Magnetospirillum gryphiswaldense MSR-1
Chemical Engineering Journal, 2011Abstract The biosynthesis of nanoparticles is considered to be a novel, effective and eco-friendly procedure. In this paper, Magnetospirillum gryphiswaldense MSR-1 was successfully used to reduce gold ions to a zero-valent metal in a water environment, and more importantly, to accumulate them into spherical nanoparticles on the cell surface through
Fang Cai +3 more
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Archives of Microbiology, 2004
The ability of magnetotactic bacteria (MTB) to orient and migrate along magnetic field lines is based on magnetosomes, which are membrane-enclosed intracellular crystals of a magnetic iron mineral. Magnetosome biomineralization is achieved by a process involving control over the accumulation of iron and deposition of the magnetic particle, which has a ...
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The ability of magnetotactic bacteria (MTB) to orient and migrate along magnetic field lines is based on magnetosomes, which are membrane-enclosed intracellular crystals of a magnetic iron mineral. Magnetosome biomineralization is achieved by a process involving control over the accumulation of iron and deposition of the magnetic particle, which has a ...
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Systematic and Applied Microbiology, 1991
Summary A magnetotactic spirillum (strain MSR-1) was isolated from the mud of the eutrophic river Ryck near Greifswald. Its morphological, ultrastructural and biochemical characteristics were compared with those of Aquaspirillum magnetotacticum. A cell suspension of strain MSR-1 was used to amplify in vitro 16S rRNA genes (rDNA).
Karl Heinz Schleifer +6 more
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Summary A magnetotactic spirillum (strain MSR-1) was isolated from the mud of the eutrophic river Ryck near Greifswald. Its morphological, ultrastructural and biochemical characteristics were compared with those of Aquaspirillum magnetotacticum. A cell suspension of strain MSR-1 was used to amplify in vitro 16S rRNA genes (rDNA).
Karl Heinz Schleifer +6 more
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Biochemical and genetic analysis of the magnetosome membrane in Magnetospirillum gryphiswaldense
2004This chapter contains sections titled: Introduction The Biomineralization of Magnetite in MTB The MM is a Unique Structure in MTB Biochemical Analysis of the MM in M. gryphiswaldense Proteomic Analysis of Magnetosomes Tetratricopeptide Repeat (TPR) Proteins Cation Diffusion Facilitator (CDF) Proteins HtrA‐like Serine Proteases MTB‐specific Protein ...
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