クルマエビの脱皮周期における脂質生合成〔英文〕

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After the injection of sodium acetate-1-14C into some prawns, Penaeus japonicus, the de novo lipid synthesis and the distribution of radioactive lipids in tissues such as the muscle, integument, eyestalk, hepatopancreas, and remains were investigated in association with the molting stages. The incorporation of acetate-14C into the lipids was high at stage C1-C2 and low at stages D1' and D1''-D2'''. Throughout the molting cycle, nearly half of the radioactive lipid was distributed in the remains. In the muscle, eyestalk, integument, and remains, radioactive lipids were present mainly as polar lipids in every stage. In the case of the hepatopancreas, rather large amounts of neutral lipids were present besides the polar lipids, and the ratio of polar to neutral lipids reached a minimum at stage D1'.
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