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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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Polyamines, a class of aliphatic amines, are active in the growth and development of bacteria, animals, and plants. To better understand their physiological role in plants, we used spermidine and the inhibitor of SAMDC to analyze the developmental patterns of roots and shoots from Arabidopsis seedlings and in-vitro carnation shoot cultures. We also monitored mRNA levels of the polyamine biosynthetic gene after adding various phytohormones to the growing media. Treating wild-type Arabidopsis seedlings with polyamine resulted in greater growth after four weeks; 1 mM spermidine increased root lengths by 39% and seedling weights by 44%. Spermidine was more effective in enhancing root growth in the det2 mutants than in the wild-type plants. In contrast MGBG, an irreversible inhibitor of SAMDC activity, resulted in root lengths that were 29% of the controls, as well as seedling weights that were only 77% of normal. In our carnation cultures, shoot-growth rates were severely reduced by both spermidine and MGBG; root growth was also markedly inhibited by treatment with spermidine. Transcripts of ADC and SAMDC were significantly greater in cultures treated with kinetin and IAA, with levels being higher with the former, Previous research has shown that sensitivity and the appropriate cellular content for polyamines vary among plant species, and may also be organ- or tissue-specific. Polyamines may play an important developmental role because of their potentially stimulatory effects on phytohormonal signaling and/or synergism.
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Effect of Polyamines on Adventitious Root Formation from Tobacco (Nicotiana tabaccum) Leaf Segments
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한국동물학회 학술대회
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Changes in Cellular Polyamine Contents and Activities of Their Biosynthetic Enzymes at Each Phase of the Cell Cycle in BY-2 Cells
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Methylglyoxal bis-(Guanylhydrazone)과 Polymine이 대두 자엽 부정근 형성시 탄수화물 대사에 미치는 영향
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Polyamine에 의한 옥수수 Ribosome의 활성 촉진
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Polyamine과 Polyamine의 생합성에 관련된 효소들의 시금치잎 세포내 분포에 관한 연구
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Multifaceted role of polyamines in bacterial adaptation to antibiotic-mediated oxidative stress
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A New Mechanism of Upstream Open Reading Frame of SAMDC Gene: Transcriptional and Transnational Regulation
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Characterization and Expression of the Polyamine Biosynthetic Genes from Senescing Carnation Flowers
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1992 .01
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담배 현탁배양 세포에 있어 Polyamine 과 Ethylene 생합성시 중간산물로서 S-Adenosylmethionine의 역할
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2019 .12
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Characterization and Light-Induced Expression of the S-Adenosyl- methionine Decarboxylase Gene from Ipomoea nil
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Characterization of Spermidine Transport System in a Cyanobacterium, Synechocystis sp. PCC 6803
Journal of Microbiology and Biotechnology
2009 .01
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Improvement of Efficiency for Macro-propagation and of Quality for Cut Flower in Rose
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2002 .01
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