ノリ葉体のアミノ酸とりこみ部位と葉体内での消長 (ノリ葉体の生長に及ぼすアミノ酸等の効果-1,2-)

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In our previous paper, the uptake of amino acids and glucose by fronds were examined. In this paper the site of 14C incorporation in the fronds of porphyra was measured by autoradiographic. Methods and the incorporated amino acids or glucose were investigated by tracer technique. 1. The radioactivity was observed chiefly at the fringe of fronds but some radi-oactivity was also observed at the base section of fronds. 2. After the incorporation test with 14C labeled compounds, the fronds were hydr-olysed and the distribution of radiorctivity among amino acids were measured. When one of the several amino acids was added, a higher recovery was observed from the corresponding portion, but the recovery rate changed with the kind of amino acid. when 14C labeled L-tyrosine was added, a higher ratio of the radio activity was recovered but when 14C labeled L-lysine or 14C labeled L-glutamate was added a lower ratio of the radioactivity was recovered.
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