Results 21 to 30 of about 715 (124)

Novel Protein Mg2046 Regulates Magnetosome Synthesis in Magnetospirillum gryphiswaldense MSR-1 by Modulating a Proper Redox Status [PDF]

Frontiers in Microbiology, 2019
Magnetotactic bacteria (MTB) are a large, polyphyletic group of aquatic microorganisms capable of absorbing large amounts of iron and synthesizing intercellular nano-scaled nanoparticles termed magnetosomes.
Xu Wang, Xu Wang, Haolan Zheng, Qing Wang, Wei Jiang, Ying Wen, Jiesheng Tian, Jianbo Sun, Ying Li, Jilun Li   +9 more
doaj   +2 more sources

Physiological characteristics of Magnetospirillum gryphiswaldense MSR-1 that control cell growth under high-iron and low-oxygen conditions [PDF]

Scientific Reports, 2017
Magnetosome formation by Magnetospirillum gryphiswaldense MSR-1 is dependent on iron and oxygen levels. We used transcriptome to evaluate transcriptional profiles of magnetic and non-magnetic MSR-1 cells cultured under high-iron and low-iron conditions ...
Qing Wang, Xu Wang, Weijia Zhang, Xianyu Li, Yuan Zhou, Dan Li, Yinjia Wang, Jiesheng Tian, Wei Jiang, Ziding Zhang, Youliang Peng, Lei Wang, Ying Li, Jilun Li   +13 more
doaj   +2 more sources

Impact of oxidative stress on Magnetospirillum gryphiswaldense MSR-1 physiology and magnetosome biomineralization at the single-cell level [PDF]

mBio
Magnetotactic bacteria, such as Magnetospirillum gryphiswaldense MSR-1, naturally produce magnetosomes—intracellular magnetic nanoparticles that enable navigation within geomagnetic fields.
Marta Masó-Martínez, Julika Radecke, Craig MacGregor-Chatwin, Paul D. Topham, Alfred Fernández-Castané   +4 more
doaj   +2 more sources

Characterization and Phylogenetic Analysis of a Novel Uncultivated Magnetotactic Coccus Harbouring Multi‐Chain Magnetosomes [PDF]

Environmental Microbiology Reports, Volume 18, Issue 1, February 2026.
A novel marine magnetotactic coccus, strain HHB‐1, was isolated from intertidal sediments in Houhai Bay, China. HHB‐1 cells are large coccoid–ovoid bacteria that contain multiple chains of prismatic magnetite magnetosomes and conspicuous Ca/Mg‐rich polyphosphate granules.
Yuzan Che, Wenyan Zhang, Yi Dong, Min Liu, Tian Xiao, Jin‐Yong Zhang, Hongmiao Pan   +6 more
wiley   +2 more sources

Spatiotemporal Organization of Chemotaxis Pathways in Magnetospirillum gryphiswaldense. [PDF]

Appl Environ Microbiol, 2020
Magnetotactic bacteria (MTB) use the geomagnetic field for navigation in aquatic redox gradients. However, the highly complex signal transduction networks in these environmental microbes are poorly understood. Here, we analyzed the localization of selected chemotaxis proteins to spatially and temporally resolve chemotaxis array ...
Pfeiffer D, Herz J, Schmiedel J, Popp F, Schüler D.   +4 more
europepmc   +5 more sources

Magnetic nanoparticles from Magnetospirillum gryphiswaldense increase the efficacy of thermotherapy in a model of colon carcinoma. [PDF]

PLoS ONE, 2014
Magnetic nanoparticles (MNPs) are capable of generate heating power under the influence of alternating magnetic fields (AMF); this behaviour recently opened new scenarios for advanced biomedical applications, mainly as new promising tumor therapies.
Silvia Mannucci, Leonardo Ghin, Giamaica Conti, Stefano Tambalo, Alessandro Lascialfari, Tomas Orlando, Donatella Benati, Paolo Bernardi, Nico Betterle, Roberto Bassi, Pasquina Marzola, Andrea Sbarbati   +11 more
doaj   +2 more sources

Long-term observation of Magnetospirillum gryphiswaldense in a microfluidic channel. [PDF]

Arch Microbiol, 2019
We controlled and observed individual magnetotactic bacteria (Magnetospirillum gryphiswaldense) inside a 5 m high microfluidic channel for over four hours. After a period of constant velocity, the duration of which varied between bacteria, all observed bacteria showed a gradual decrease in their velocity of about 25 nm/s$^2$.
Hageman TAG, Pichel MP, Löthman PA, Cho J, Choi M, Korkmaz N, Manz A, Abelmann L.   +7 more
europepmc   +6 more sources

Magnetic Response of Magnetospirillum Gryphiswaldense [PDF]

Journal of Magnetism and Magnetic Materials, 2017
In this study we modelled and measured the U-turn trajectories of individual magnetotactic bacteria under the application of rotating magnetic fields, ranging in ampitude from 1 to 12 mT. The model is based on the balance between rotational drag and magnetic torque.
Pichel, M. P., Hageman, T. A. G., Khalil, I. S. M., Manz, A., Abelmann, L.   +4 more
openaire   +3 more sources

Complete Genome Sequence of Magnetospirillum gryphiswaldense MSR-1. [PDF]

Genome Announc, 2014
ABSTRACT We report the complete genomic sequence of Magnetospirillum gryphiswaldense MSR-1 (DSM 6361), a type strain of the genus Magnetospirillum belonging to the Alphaproteobacteria .
Wang X, Wang Q, Zhang W, Wang Y, Li L, Wen T, Zhang T, Zhang Y, Xu J, Hu J, Li S, Liu L, Liu J, Jiang W, Tian J, Li Y, Schüler D, Wang L, Li J.   +18 more
europepmc   +4 more sources

Bacterial magnetosome biomineralization--a novel platform to study molecular mechanisms of human CDF-related Type-II diabetes. [PDF]

PLoS ONE, 2014
Cation diffusion facilitators (CDF) are part of a highly conserved protein family that maintains cellular divalent cation homeostasis in all organisms.
Natalie Zeytuni, René Uebe, Michal Maes, Geula Davidov, Michal Baram, Oliver Raschdorf, Assaf Friedler, Yifat Miller, Dirk Schüler, Raz Zarivach   +9 more
doaj   +1 more source