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The Growth and Sporulation of Bacillus subtilis in Nanotesla Magnetic Fields (CROSBI ID 300565)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Obhođaš, Jasmina ; Valković, Vladivoj ; Kollar, Robert ; Hrenović, Jasna ; Nađ, Karlo ; Vinković, Andrija ; Orlić, Željko The Growth and Sporulation of Bacillus subtilis in Nanotesla Magnetic Fields // Astrobiology, 21 (2021), 3; 323-331. doi: 10.1089/ast.2020.2288

Podaci o odgovornosti

Obhođaš, Jasmina ; Valković, Vladivoj ; Kollar, Robert ; Hrenović, Jasna ; Nađ, Karlo ; Vinković, Andrija ; Orlić, Željko

engleski

The Growth and Sporulation of Bacillus subtilis in Nanotesla Magnetic Fields

The order of magnitude of increased growth, multiplication rate, and decreased sporulation of Bacillus subtilis after exposure to nanotesla magnetic fields (MFs) relative to control samples were observed experimentally. Earth’s total magnetic field intensity was reduced from 47.9 +– 0.4 mT to cover the range from 97.5 +– 1.7 nT to 1115 +– 158 nT in eight subsequent experiments by using three pairs of Helmholtz coils combined with Mu-metal shielding. The growth, multiplication rate, sporulation, and potassium content were measured in the probe and control containing B. subtilis cultures after 24 h of exposure to nanotesla and Earth’s magnetic fields, respectively. The observed effect is discussed with regard to its possible repercussions on Earth’s living species during geomagnetic reversals that occurred when the magnetic field was much weaker than the field that exists today. In addition, effects on future manned voyages into deep space, an environment with reduced magnetic field intensity, are considered.

Bacillus subtilis ; Nanotesla magnetic fields ; Geomagnetic reversals ; Human voyages into deep space

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Podaci o izdanju

21 (3)

2021.

323-331

objavljeno

1531-1074

1557-8070

10.1089/ast.2020.2288

Povezanost rada

Biologija, Fizika

Poveznice
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