The Excessive Production of Indole-3-Acetic Acid and Its Significance in Studies of the Biosynthesis of This Regulator of Plant Growth and Development
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概要
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Because of the importance of indole-3-acetic acid (IAA) in the growth and development of plants, extensive studies of the biosynthesis of IAA have been performed during the four decades since the discovery of IAA as a plant hormone. The pathway for the biosynthesis of IAA in plants remains, however, to be unelucidated, even though studies within the past decade have revealed unexpected aspects of such biosynthesis. By contrast, two pathways to IAA have been characterized in bacteria at the molecular level: the indole-3-acetamide (IAM) pathway (L-tryptophan → IAM → IAA); the indole-3-pyruvic acid pathway (L-tryptophan → indole-3-pyruvic acid → indole-3-acetaldehyde → IAA) (Fig. 1). In both pathways, the details of the biosynthesis of IAA were clarified using IAA-over-producing bacteria. After a description of recent advances of the studies of the biosynthesis of IAA in plants, this review focuses on the excessive production of IAA in sever-al organisms and its significance in the studies of the biosyn-thesis of IAA.
- 日本植物生理学会の論文
著者
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KAWAGUCHI Masayoshi
Department of Life Science, Graduate School of Arts and Sciences, University of Tokyo
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SYONO Kunihiko
Department of Pure and Applied Sciences, The University of Tokyo
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Syono Kunihiko
Department Of Life Science Graduate School Of Arts And Sciences University Of Tokyo:(present Address
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Syono Kunihiko
Department Of Life Sciences Graduate School Of Arts And Sciences University Of Tokyo
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Kawaguchi Masayoshi
Department Of Biological Sciences Graduate School Of Science The University Of Tokyo
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