ArticlePloS one2022
Magnetotactic advantage in stable sediment by long-term observations of magnetotactic bacteria in Earth's field, zero field and alternating field.
Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Magnetotaxis in an anaerobic ciliate via tripartite syntrophy.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Directional matching of swimming polarity provides a competitive advantage during bacterial magneto-aerotaxis.BMC microbiology · 2026Article
- Combined response of polar magnetotaxis to oxygen and pH: Insights from hanging drop assays and microcosm experiments.Scientific reports · 2024Article
- Collective magnetotaxis of microbial holobionts is optimized by the three-dimensional organization and magnetic properties of ectosymbionts.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
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4 authors.
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Abstract
Magnetotactic bacteria (MTB) rely on magnetotaxis to effectively reach their preferred living habitats, whereas experimental investigation of magnetotactic advantage in stable sediment is currently lacking. We studied two wild type MTB (cocci and rod-shaped M. bavaricum) in sedimentary environment under exposure to geomagnetic field in the laboratory, zero field and an alternating field whose polarity was switched every 24 hours. The mean concentration of M. bavaricum dropped by ~50% during 6 months in zero field, with no clear temporal trend suggesting an extinction. Cell numbers recovered to initial values within ~1.5 months after the Earth's field was reset. Cocci displayed a larger temporal variability with no evident population changes in zero field. The alternating field experiment produced a moderate decrease of M. bavaricum concentrations and nearby extinction of cocci, confirming the active role of magnetotaxis in sediment and might point to a different magnetotactic mechanism for M. bavaricum which possibly benefited them to survive field reversals in geological periods. Our findings provide a first quantification of magnetotaxis advantage in sedimentary environment.
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