数種コンブ葉体中のヒ素の分布
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概要
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Rishiri-konbu Laminaria japonica var. ochotensis and gagome-konbu Kjellmaniella crassiforia, both of which were collected at four places in Hokkaido, were assayed for arsenic contents in their various parts, and the following results were obtained. 1. The arsenic content was highest at the base and lowest at the top of frond, the approximate proportions being 2:1. The content tended to be higher at the center than at the marginal part, and this tendency was clear at the base of frond. 2. The arsenic content was significantly higher at the cortex part than at the marrow part of frond. The proportions were 1:2.2 at the top and 1:2.5 at the base. The arsenic content at the marrow did not differ so widely from the top to the base. 3. The above results revealed that arsenic is distributed more densely in meristematic tissues, suggesting that some arsenic compounds may be concerned with the metabolism of those tissues.
- 日本水産學會の論文