Effects of Vitamin B12-dependent Enzymes and Folate Compounds on Morphological Changes of Rhizobium meliloti
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概要
- 論文の詳細を見る
The specific activities of three B12-dependent enzymes in Rhizobium meliloti were compared in relation to morphological changes in the bacterium. The critical levels of ribonucleotide reductase and methylmalonyl-CoA mutase seemed to be maintained, while the level of methionine synthase was probably insufficient for cell multiplication. A close relationship was observed between the methionine synthase level and morphological changes in the bacterium. The addition of folate with methionine to the cobalt-deficient medium did not have a positive effect on bacterial growth. A sufficient amount of tetrahydrofolate was detected in the cobalt-deficient elongated cells. These findings might suggest the important role of methionine synthase in cell multiplication, which was unpredictable from the methylfolate trap hypothesis.
- 社団法人 日本農芸化学会の論文
著者
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Shimizu Shoichi
Department Of Chemistry Faculty Of Science Kyoto University
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Sato Kazuyoshi
Department Of Chemical And Environmental Engineering Gunma University
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Seki Toshiyuki
Department of Obstetrics and Gynecology, The Jikei University School of Medicine
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INUKAI Shinji
Department of Food Science and Technology, Nagoya University
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SHIMIZU Shoichi
Department of Applied Chemistry, Shibaura Institute of Technology
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SATO Kazuyoshi
Department of Food Science and Technology, Nagoya University
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