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KMID : 0364219790220010019
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Korean Journal of Zoology
1979 Volume.22 No. 1 p.19 ~ p.25
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Metabolism of Leucine During the Early Pupal State of Cabbage Worm, Pieris rapae L.
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Jeon Jin-Seon
Choe Rim-Soon
Choi Choon-Keun
Kim Hak-Ryul
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Abstract
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To determine the metabolism of leucine during the cuticle formation and the sclerotization process in Pieris rapae L., $U-^3$H-leucine or $U-^4$C-tyrosine is injected into the haemolymph of newly molted pupa through dorsal cuticle of heart area. The results show that leucine as a common amino acid participates in the synthesis of cuticle protein over the first 3 hr after ecdysis. It is also shown that leucine in the haemolymph at ecdysis is freely being moved between major internal organs during the short time period post-ecdysis, providing the evidence for some involvements including haemolymph protein synthesis and storage of fat body and gut in metabolism of leucine.
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