[磁场对大肠杆菌K-12 lon突变体生长和分裂的影响]
[The effect of magnetic fields on the growth and division of the lon mutant of Escherichia coli K-12].
作者信息
Stepanian R S, Barsegian A A, Alaverdian Zh R, Oganesian G G, Markosian L S, Aĭrapetian S N
机构信息
Biophysics Center, Armenian National Academy of Science, Erevan.
出版信息
Radiats Biol Radioecol. 2000 May-Jun;40(3):319-22.
PMID:10907412
Abstract
It was shown that the static magnetic field (SMF) and electromagnetic field (EMF) caused inhibition of the cell division in Escherichia coli K-12 lon mutant. The low-frequency EMF 4 Hz led to the 20% survival, but EMF at 50 Hz increased the survival of cells up to 53%. After exposure to magnetic field cells lost capacity for division and grow as filaments, unable to form the colonies on the solid media.
摘要
结果表明，静磁场（SMF）和电磁场（EMF）会抑制大肠杆菌K-12 lon突变体中的细胞分裂。4Hz的低频电磁场导致20%的存活率，但50Hz的电磁场使细胞存活率提高到53%。暴露于磁场后，细胞失去分裂能力并长成丝状，无法在固体培养基上形成菌落。
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