Results 21 to 30 of about 1,750 (188)

Magnetosymbiosis discovery: new perspectives in magnetotaxis research

Journal of Oceanology and Limnology
Magnetotactic bacteria have been the only known magnetoreceptive microorganisms for decades. Even if the existence of magnetotactic protists was suggested in 1986, this is only 30 years later that magnetotaxis was extended to the domain of Eukaryota, thanks to the characterization of magnetotactic symbiotic assemblies composed of a flagellated protist ...
Caroline L. Monteil, Christopher T. Lefevre   +1 more
semanticscholar   +4 more sources

Detecting life by behavior, the overlooked sensitivity of behavioral assays [PDF]

Scientific Reports
Detecting life has driven research and exploration for centuries, but recent attempts to compile and generate a framework that summarizes life features, aimed to develop strategies for life detection missions beyond planet Earth, have disregarded a key ...
Daniela Zinßmeister, Moshe Leibovitch, Eviatar Natan, Sondra Turjeman, Omry Koren, Michael Travisano, Yoni Vortman, Beatriz Baselga-Cervera   +7 more
doaj   +2 more sources

Phylogenetic and genomic insights into magnetosome biomineralization in magnetotactic Alphaproteobacteria [PDF]

Applied and Environmental Microbiology
Magnetotactic bacteria (MTB) biomineralize intracellular, membrane-enclosed magnetite or greigite nanocrystals (magnetosomes). How magnetosome gene clusters (MGCs) control magnetosome morphology and evolve across lineages remains central to ...
Rongrong Zhang, Peiyu Liu, Jinling Bai, Kelei Zhu, Yan Liu, Andrew P. Roberts, Yongxin Pan, Jinhua Li   +7 more
doaj   +2 more sources

Angle sensing in magnetotaxis of Magnetospirillum magneticum AMB-1 [PDF]

Integr. Biol., 2014
The mechanism of how magnetotactic bacteria navigate along the magnetic field has been a puzzle.
Xuejun, Zhu, Xin, Ge, Ning, Li, Long-Fei, Wu, Chunxiong, Luo, Qi, Ouyang, Yuhai, Tu, Guanjun, Chen   +7 more
openaire   +3 more sources

Some have it all: multicellularity, magnetotaxis and photokinesis in one bacterium

Environmental Microbiology, 2020
Summary Bacteria developed many different ways to orient themselves in the environment. Magnetoreception with following motility along Earth's magnetic field lines and photoreception with subsequent positive or negative phototaxis allow bacteria to optimally position themselves for survival and growth.
Sarah Wettstadt
openaire   +4 more sources

Experimental analysis of diverse actin-like proteins from various magnetotactic bacteria by functional expression in Magnetospirillum gryphiswaldense [PDF]

mBio, 2023
Magnetotactic bacteria (MTB) produce magnetosomes, which are sensory organelles consisting of nanocrystals of a magnetic iron mineral enclosed by membranes. In the well-characterized Magnetospirillum species of the Alphaproteobacteria, magnetosomes align
Ram Prasad Awal, Frank D. Müller, Daniel Pfeiffer, Caroline L. Monteil, Guy Perrière, Christopher T. Lefèvre, Dirk Schüler   +6 more
doaj   +2 more sources

Polarity of bacterial magnetotaxis is controlled by aerotaxis through a common sensory pathway [PDF]

Nature Communications, 2014
Most motile bacteria navigate within gradients of external chemical stimuli by regulating the length of randomly oriented swimming episodes. Magnetotactic bacteria are characterized by chains of intracellular ferromagnetic nanoparticles and their ability to sense the geomagnetic field, which is believed to facilitate directed motion, but is not well ...
Popp, Felix, Armitage, Judith P., Schüler, Dirk   +2 more
openaire   +4 more sources

Collective magnetotaxis of microbial holobionts is optimized by the three-dimensional organization and magnetic properties of ectosymbionts. [PDF]

Proc Natl Acad Sci U S A, 2023
Significance Symbiosis between a motile microeukaryotic host and dozens of nonmotile, surface-attached magnetic bacterial symbionts was recently discovered, where the host acquires geomagnetic field-guided navigation thanks to chains of ferrimagnetic ...
Chevrier DM, Juhin A, Menguy N, Bolzoni R, Soto-Rodriguez PED, Kojadinovic-Sirinelli M, Paterson GA, Belkhou R, Williams W, Skouri-Panet F, Kosta A, Le Guenno H, Pereiro E, Faivre D, Benzerara K, Monteil CL, Lefevre CT.   +16 more
europepmc   +2 more sources

Temporal and spatial factors that influence magnetotaxis in C. elegans [PDF]

bioRxiv, 2018
ABSTRACTMany animals can orient using the earth’s magnetic field. In a recent study, we performed three distinct behavioral assays providing evidence that the nematode Caenorhabditis elegans orients to earth-strength magnetic fields (Vidal-Gadea et al., 2015). In addition to these behavioral assays, we found that magnetic orientation in C.
Vidal-Gadea, A.G., Caldart, C.S., Bainbridge, C., Clites, B.L., Palacios, B., Bakhtiari, L.A., Gordon, V.D., Golombek, D.A., Pierce, J.T.   +8 more
openaire   +2 more sources

Tethered Magnets Are the Key to Magnetotaxis: Direct Observations of Magnetospirillum magneticum AMB-1 Show that MamK Distributes Magnetosome Organelles Equally to Daughter Cells

mBio, 2017
Magnetotactic bacteria are a unique group of bacteria that synthesize a magnetic organelle termed the magnetosome, which they use to assist with their magnetic navigation in a specific type of bacterial motility called magneto-aerotaxis.
Azuma Taoka, Ayako Kiyokawa, Chika Uesugi, Yousuke Kikuchi, Zachery Oestreicher, Kaori Morii, Yukako Eguchi, Yoshihiro Fukumori   +7 more
doaj   +2 more sources