title: Application of static and impulse magnetic fields to bacteria Rhodospirillum rubrum VKM B-1621.
abstract: The paper presents effects of different magnetic fields (MFs) (static-SMF and impulse-IMF) on bacteria Rhodospirillum rubrum VKM B-1621. The MFs had different magnetic strength: SMF-up to 173 mT; IMF-25 mT. The studied object was amylase activity which was measured by decrease in the starch concentration during incubation in the MFs. The term of incubation in the MFs was limited with 2 h. The SMF affected neither amylase activity of R. rubrum nor standard deviation in distribution of the residual starch concentration along the plate but the IMF did. The IMS effects varied along the plate which could be related with distance from the magnetic center of the applied device. In whole, application of impulse MFs can regulate bacterial activity and thus could be used for biotechnological application.
authors.affiliation: Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Prospekt Nauki 5, Pushchino, Moscow region, 142290, Russia.
authors.forename: Galina
authors.initials: G
authors.lastname: Khokhlova
authors.affiliation: Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Prospekt Nauki 5, Pushchino, Moscow region, 142290, Russia. vain@ibpm.pushchino.ru.|Pushchino State Institute of Natural Sciences, Prospekt Nauki 3, Pushchino, Moscow region, 142290, Russia. vain@ibpm.pushchino.ru.
authors.forename: Mikhail
authors.initials: M
authors.lastname: Vainshtein
keywords: Amylase activity; Magnetic fields; Rhodospirillum rubrum