Occurrence of Cobalamin Coenzymes in the Photosynthetic Green Alga, Chlorella vulgaris

概要

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To analyze cobalamin metabolism in photosynthetic green algae, the effects of cobalamin on growth of Chlorella vulgaris C-30 were studied and the algal cobalamin contents were assayed. Cobalamin significantly stimulated growth of the Chlorella cells, but biologically inactive cobalamin analogues did not. Chlorella grown in a cobalamin-free medium (control) contained cobalamin coenzymes, 5'-deoxyadenosylcobalamin (7.95±0.31 ng/g wet weight) and methylcobalamin (2.72±0.45 ng/g wet weight), of which the levels were increased significantly in cobalamin-supplemented cells. These results indicate that the alga has ability to take up exogenous cobalamin and synthesize the coenzyme forms.
社団法人日本農芸化学会の論文
1997-05-23