Characterization of Amino Acid Distribution in the Floral Organs of Nicotiana tabacum

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概要

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• The amino acid distribution in the floral organs of Nicotiana tabacum was studied at 2 days after anthesis an in the developmental stages of the stigma and anther. Free amino acid contents of the organs were higher than in leaves on a dry weight basis. All the organs contained a large amount of asparagine and glutamine. Asparagine was prominent in the anther and pistil, while glutamine was higher in the others. The proportion ofserine was exclusively high in the stigma and style. The calyx, floral axis and anther contained an appreciable amount of proline. Bound amino acid compositions were similar among the floral organs, although electrophoretic behaviors of the soluble protein fractions in polyacrylamide gels were different. Protein accumulation during development was observed in both the stigma and anther. On the other hand, the co tent of free amino acids of the stigma increased during development, while that in the anther decreased at the later stages. The rapid increase of asparagine in the anther was observed 1 day before anthesis, and 6 days before in the stigma. Proline was one of the major amino acids in the anther at anthesis and its maximum concentration was observed at 3 days before anthesis. The proportion of glutamine rapidly decreased in both the stigma and anther during development.

• 社団法人 日本農芸化学会の論文

著者

• Sano Minoru

  Central Research Institute Japan Tobacco And Salt Public Corporation

• Iwai Sumio

  Central Research Institute Japan Tobacco Inc.:(present Office)the Utsunomiya Tobacco Experiment Stat

• Kawashima Nobumaro

  Central Research Institute Japan Tobacco And Salt Public Corporation

• Sano Minoru

  Central Research Institute, The Japan Tobacco & Salt Public Corporation

関連論文

• New Cembranoic Diterpene with IAA Inhibitory Activity from Nicotiana tabacum
• Changes in Free Amino Acids in White and Green Tissues of Variegated Tobacco Leaves during Water Stress
• Changes in the Contents of Free and Protein Amino Acids in Tobacco Seeds and Placentae during Maturation
• Purification and properties of ribose phosphate isomerase from tobacco leaves
• Comparison of Stigma Fatty Acid Composition between Male Sterile and Fertile Tobacco Plants(Biological Chemistry)
• Changes in Stigma-Specific Lipids of Tobacco Plant during Flower Development
• Total Fatty Acid and Polar Lipid Content in Developing Flower of Nicotiana tabacum
• Changes in Total and Polar Lipids and Their Fatty Acid Composition in Tobacco Leaves during Growth and Senescence
• Stabilization of ribose-5-phosphate isomerase from tobacco
• Effects of Temperature on Seed Fatty Acid Composition in Ovary Culture of Tobacco(Biological Chemistry)
• In Vitro Proliferation of Stigma-Like, Style-Like Structures of Nicotiana tabacum and its Fatty Acid Composition
• Comparison of Free and Bound Amino Acids in White and Green Tissues of Variegated Tobacco Plants
• Characterization of Amino Acid Distribution in the Floral Organs of Nicotiana tabacum
• Water Stress Induced Proline Accumulation at Different Stalk Positions and Growth Stages of Detached Tobacco Leaves
• Isolation of Tetra-, Penta-, Hexa- and Heptaacyl Glycerides from Stigmas of Nicotiana tabacum
• Comparison of Polar Lipids in Various Parts of Variegated Tabacco Leaves
• Formation of Acylmonogalactosyldiglyceride and Degradation of Polar Lipids in Leaf Homogenates of Tobacco

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