Magnetic guidance of the magnetotactic bacterium Magnetospirillum gryphiswaldense

Soft Matter ◽  
2016 ◽  
Vol 12 (15) ◽  
pp. 3631-3635 ◽  
Author(s):  
Johannes Loehr ◽  
Daniel Pfeiffer ◽  
Dirk Schüler ◽  
Thomas M. Fischer
Keyword(s):  
Magnetotactic Bacterium ◽  
Magnetospirillum Gryphiswaldense ◽  
Magnetic Guidance

scholarly journals A gradient‐forming MipZ protein mediating the control of cell division in the magnetotactic bacterium Magnetospirillum gryphiswaldense

2019 ◽  
Vol 112 (5) ◽  
pp. 1423-1439 ◽  
Author(s):  
Mauricio Toro‐Nahuelpan ◽  
Laura Corrales‐Guerrero ◽  
Theresa Zwiener ◽  
Manuel Osorio‐Valeriano ◽  
Frank‐Dietrich Müller ◽  
...  
Keyword(s):  
Cell Division ◽  
Magnetotactic Bacterium ◽  
Magnetospirillum Gryphiswaldense

scholarly journals Identification of Promoters for Efficient Gene Expression in Magnetospirillum gryphiswaldense

2009 ◽  
Vol 75 (12) ◽  
pp. 4206-4210 ◽  
Author(s):  
Claus Lang ◽  
Anna Pollithy ◽  
Dirk Schüler
Keyword(s):  
Gene Expression ◽  
Escherichia Coli ◽  
Green Fluorescent Protein ◽  
Fluorescent Protein ◽  
Expression System ◽  
Antibody Binding ◽  
Magnetotactic Bacterium ◽  
Magnetospirillum Gryphiswaldense ◽  
Efficient Gene ◽  
Green Fluorescent

ABSTRACT To develop an expression system for the magnetotactic bacterium Magnetospirillum gryphiswaldense, we compared gene expression from the widely used Escherichia coli P lac promoter with that from known and predicted genuine M. gryphiswaldense promoters. With the use of green fluorescent protein as a reporter, the highest expression level was observed with the magnetosomal P mamDC promoter. We demonstrate that this promoter can be used for the expression of modified magnetosome proteins to generate “antibody-binding” magnetosomes.

Examining the chemistry and magnetism of magnetotactic bacterium Candidatus Magnetovibrio blakemorei strain MV-1 using scanning transmission X-ray microscopy

2012 ◽  
Vol 300-301 ◽  
pp. 14-23 ◽  
Author(s):  
Samanbir S. Kalirai ◽  
Karen P. Lam ◽  
Dennis A. Bazylinski ◽  
Ulysses Lins ◽  
Adam P. Hitchcock
Keyword(s):  
Magnetotactic Bacterium ◽  
X Ray ◽  
Scanning Transmission

scholarly journals Multifunktionale bakterielle Nanomagnete für Biotechnologie und Medizin

BIOspektrum ◽  
2021 ◽  
Vol 27 (4) ◽  
pp. 442-444
Author(s):  
Frank Mickoleit ◽  
Sabine Rosenfeldt ◽  
Anna S. Schenk ◽  
Dirk Schüler ◽  
René Uebe
Keyword(s):  
Particle Production ◽  
Magnetotactic Bacteria ◽  
Magnetic Core ◽  
High Yield ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Magnetospirillum Gryphiswaldense ◽  
Core Shell Nanoparticles ◽  
Genetic Toolkit ◽  
The Way

AbstractBacterial magnetosomes represent magnetic core-shell nanoparticles biomineralized by magnetotactic bacteria like Magnetospirillum gryphiswaldense. The establishment of fermentation regimes for high-yield particle production, standardized isolation procedures as well as the development of a genetic toolkit for the generation of “tailored” particles might soon pave the way for the application of engineered magnetosomes in the biomedical and biotechnological field.

Magnetovibrio blakemorei gen. nov., sp. nov., a magnetotactic bacterium ( Alphaproteobacteria : Rhodospirillaceae ) isolated from a salt marsh

2013 ◽  
Vol 63 (Pt_5) ◽  
pp. 1824-1833 ◽  
Author(s):  
Dennis A. Bazylinski ◽  
Timothy J. Williams ◽  
Christopher T. Lefèvre ◽  
Denis Trubitsyn ◽  
Jiasong Fang ◽  
...  
Keyword(s):  
Salt Marsh ◽  
Electron Acceptor ◽  
Anaerobic Growth ◽  
Rrna Gene ◽  
Magnetotactic Bacterium ◽  
Single Chain ◽  
Circular Chromosome ◽  
Terminal Electron Acceptor ◽  
Content Type ◽  
Link Type

A magnetotactic bacterium, designated strain MV-1T, was isolated from sulfide-rich sediments in a salt marsh near Boston, MA, USA. Cells of strain MV-1T were Gram-negative, and vibrioid to helicoid in morphology. Cells were motile by means of a single polar flagellum. The cells appeared to display a transitional state between axial and polar magnetotaxis: cells swam in both directions, but generally had longer excursions in one direction than the other. Cells possessed a single chain of magnetosomes containing truncated hexaoctahedral crystals of magnetite, positioned along the long axis of the cell. Strain MV-1T was a microaerophile that was also capable of anaerobic growth on some nitrogen oxides. Salinities greater than 10 % seawater were required for growth. Strain MV-1T exhibited chemolithoautotrophic growth on thiosulfate and sulfide with oxygen as the terminal electron acceptor (microaerobic growth) and on thiosulfate using nitrous oxide (N2O) as the terminal electron acceptor (anaerobic growth). Chemo-organoautotrophic and methylotrophic growth was supported by formate under microaerobic conditions. Autotrophic growth occurred via the Calvin–Benson–Bassham cycle. Chemo-organoheterotrophic growth was supported by various organic acids and amino acids, under microaerobic and anaerobic conditions. Optimal growth occurred at pH 7.0 and 26–28 °C. The genome of strain MV-1T consisted of a single, circular chromosome, about 3.7 Mb in size, with a G+C content of 52.9–53.5 mol%.Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain MV-1T belongs to the family Rhodospirillaceae within the Alphaproteobacteria , but is not closely related to the genus Magnetospirillum . The name Magnetovibrio blakemorei gen. nov., sp. nov. is proposed for strain MV-1T. The type strain of Magnetovibrio blakemorei is MV-1T ( = ATCC BAA-1436T  = DSM 18854T).

Initial Experience with Remote Magnetic Guidance for the Ablation of Typical Atrial Flutter

2007 ◽  
Vol 16 ◽  
pp. S113
Author(s):  
Rafeeq Samie ◽  
Najib Al-Rawahi ◽  
Michael Gollob ◽  
Darryl R Davis ◽  
Martin Green ◽  
...  
Keyword(s):  
Atrial Flutter ◽  
Initial Experience ◽  
Typical Atrial Flutter ◽  
Magnetic Guidance

A comprehensive assessment of the biocompatibility of Magnetospirillum gryphiswaldense MSR-1 bacterial magnetosomes in vitro and in vivo

Toxicology ◽  
2021 ◽  
Vol 462 ◽  
pp. 152949
Author(s):  
Xiaohui Nan ◽  
Yan Teng ◽  
Jiesheng Tian ◽  
Zhiyuan Hu ◽  
Qiaojun Fang
Keyword(s):  
Comprehensive Assessment ◽  
Magnetospirillum Gryphiswaldense

Ferromagnetic resonance and magnetic characteristics of intact magnetosome chains in Magnetospirillum gryphiswaldense

2008 ◽  
Vol 270 (3-4) ◽  
pp. 200-208 ◽  
Author(s):  
Håkon Fischer ◽  
Giovanni Mastrogiacomo ◽  
Jörg F. Löffler ◽  
Rolf J. Warthmann ◽  
Peter G. Weidler ◽  
...  
Keyword(s):  
Ferromagnetic Resonance ◽  
Magnetic Characteristics ◽  
Magnetospirillum Gryphiswaldense
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