Thiamine in the Frog Eye (Part 1.) Thiamine Content and its Change on Exposure
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概要
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The author investigated the influence of exposure upon thiamine contained in the eye of the frog (Rana nigromaculata nigromaculata Hallowell). Table I shows the amounts of thiamine of the frog eye (light-and dark-adapted). The illumination causes a change in the thiamine content of the dark-adapted eye; it tends to increase within 30 minutes after beginning of exposure. In the enucleated dark eye, the tendency of increase, which is mainly dependent on that of free form thiamine abundantly contained in the chorioidea, appears already on 10 minutes exposure. The rate of increase averages 1.17 in the eye-cup (chorioidea and sclera) illuminated by 12, 000 lux for 30 seconds. Anyhow it is a reasonable question whether the free form thiamine in the chorioidea is a so-called reserved material in organisms.
- 社団法人日本動物学会の論文
- 1950-11-15