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KMID : 0368419840270010007
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Journal of Plant Biology
1984 Volume.27 No. 1 p.7 ~ p.13
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Cell Biological Studies on the Mechanism of Development and Differentiation Ⅷ
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Cho, Young Dong/趙暎東
Kang, Young Hee/Lee, Sun Hi/Kim, Seong Ki/姜榮熹/李舜熙/金成淇
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Abstract
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Activities of corn endospern adenylate cyclase and phosphodiesteraes were found right after germination, and phosphodiesterase activity was shown to increase steadily. Protease activity was also found. Corn peptide fraction purified by using Sephadex G-25 column was shown to enhance corn phosphodiesterase activity but inhibit bovine phosphodiesterase activity. And the fraction inhibits corn adenylate cyclase activity. Trypsintreated peptide fraction was shown to enhance phosphodiesterase activity 80% compared to that of native peptide fraction. However, in case of DNase phosphodiesteraes was shown to be innocuous. According to cumulative results, it is more likely that peptide fraction produced by protease inhibits adenylate cyclaes activity and enhance phosphodiesterase, decreasing cAMP level.
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