S^{35}の海藻への転移に関する研究(I)

斎藤, 要, 鮫島, 宗雄, 田中, 剛

1) It was ascertained that the S^{35} uptake curves of such marine algae as Ulva pertusa, Hijikia fusiforme, Endarachine binghamiae and Porphyra suborbiculata, were almost resemble to each other ; but in the transferred amount some specific differerences were observed. 2) The S^{35} uptake by Ulva pertusa was slower than in case of the fission products uptake by the same one ; describing of the chief difference between behaviours of S^{35} and fission products, in case of former, almost no transference was observed in the algae lost its vitality, while in case of the latter, almost the same degree of transference was observed irrespective of the vitality of the algae. 3) The amount of fission products uptake by marine algae was precived to be almost proportional with the surface dimension per weight of the algae, while in case of S^{35} such a considerable tendency was not observed. 4) It was ascertained that Ulva pertusa, cultured in the sun, absorbed S^{35} for more rapidly and abundantly than those cultured in the dark place. These phenomena might be occasioned by the following reasons ; namely, the transference of fission products, having little or no relationships with the nutritious substances for algae, to the algae, was mainly based on the physical adsorption between the surface zone of the algae and the substances ; while the uptake of S^{35}, one of the essential element for the growth of algae, was on the physiological absorption.

S^{35}の海藻への転移に関する研究(I)

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S^{35}の海藻への転移に関する研究(I)

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