title: Magnetic guidance of the magnetotactic bacterium Magnetospirillum gryphiswaldense.
abstract: Magnetospirillum gryphiswaldense is a magnetotactic bacterium with a permanent magnetic moment capable of swimming using two bipolarly located flagella. In their natural environment these bacteria swim along the field lines of the homogeneous geomagnetic field in a typical run and reversal pattern and thereby create non-differentiable trajectories with sharp edges. In the current work we nevertheless achieve stable guidance along curved lines of mechanical instability by using a heterogeneous magnetic field of a garnet film. The successful guidance of the bacteria depends on the right balance between motility and the magnetic moment of the magnetosome chain.
authors.affiliation: Experimentalphysik V, University of Bayreuth, 95440 Bayreuth, Germany. Johannes.Loehr@uni-bayreuth.de.
authors.forename: Johannes
authors.initials: J
authors.lastname: Loehr
authors.affiliation: Experimentalphysik V, University of Bayreuth, 95440 Bayreuth, Germany. Johannes.Loehr@uni-bayreuth.de.
authors.forename: Daniel
authors.initials: D
authors.lastname: Pfeiffer
authors.affiliation: Experimentalphysik V, University of Bayreuth, 95440 Bayreuth, Germany. Johannes.Loehr@uni-bayreuth.de.
authors.forename: Dirk
authors.initials: D
authors.lastname: Schüler
authors.affiliation: Experimentalphysik V, University of Bayreuth, 95440 Bayreuth, Germany. Johannes.Loehr@uni-bayreuth.de.
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Fischer
mesh_terms: D005407:Flagella / Q000378:metabolism; D060526:Magnetic Fields; D060328:Magnetic Phenomena; D042201:Magnetospirillum / Q000166:cytology / Q000502:physiology*; D009068:Movement