Stimulation of Porphyrin Production by Application of an External Magnetic Field to a Photosynthetic Bacterium,Rhodobacter sphaeroides
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概要
- 論文の詳細を見る
The effects of an external magnetic field on the production of porphyrin were investigated using Rhodobacter sphaeroides IFO12203 under anaerobic-light conditions. Upon application of a 0.13-0.3-T magnetic field, the growth was slightly suppressed and porphyrin extracellular production was activated at both the N and S poles, partiaelarly at the N pole up to about 5.3 times that in the control experiment (6.7 mg/l) (without magnetic filed application). The maximum production was 35.8 mg/l at the N pole with a magnetic field of 0.3 T. At the same time, the 5-aminole-vulinic acid dehydratase (ALAD) concentration was enhanced in the cells at the N and S poles, but particularly at the the N pole. This suggested the possibility that the magnetic field might activate ALAD gene expression in R. sphaeroides IFO12203 and result in enhanced porphyrin production.
- 公益社団法人日本生物工学会の論文
- 2003-04-25
著者
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Yamane Yu-ichi
Suishin Yamane Honten Co. Ltd.
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Sasaki Ken
Material Science And Engineering Graduate School Of Engineering
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Watanabe Masanori
Materials Science And Engineering Graduate School Of Engineering Hiroshima Kokusai Gakuin University
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UTSUNOMIYA TAKEHIRO
Materials Science and Engineering,Graduate School of Engineering,Hiroshima Kokusai Gakuin University
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Utsunomiya Takehiro
Materials Science And Engineering Graduate School Of Engineering Hiroshima Kokusai Gakuin University
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Watanabe Masanori
Materials Science and Engineering,Graduate School of Engineering,Hiroshima Kokusai Gakuin University
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