Indole-3-acetic acid

Japanese: インドール-3-酢酸 - いんどーるさんさくさん
Indole-3-acetic acid

…From 1931 to 1935, F. Kögl and his colleagues attempted to isolate this growth-promoting substance, isolating three active substances, auxin a, b, and auxin a lactone, from human urine, malt, and corn oil, and determining their structures. Kögl and his colleagues then isolated a fourth auxin from human urine, but this was indole-3-acetic acid (IAA), which had already been isolated from fermentation liquid. Auxins a, b, and auxin a lactone could not be isolated again in subsequent studies, and a reexamination of Kögl's samples led to the conclusion that these auxins did not actually exist. …

*Some of the terminology that mentions "indole-3-acetic acid" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…31年から35年にかけて,ケーグルF.Köglらはこの生長促進物質の単離を試み,人尿,麦芽,トウモロコシ油から,オーキシンa,b,オーキシンaラクトンの3種の活性物質を単離し,構造も決定した。引き続きケーグルらは人尿から第4のオーキシンを単離したが,これはすでに発酵液から単離されていたインドール‐3‐酢酸(IAA)であった。オーキシンa,b,オーキシンaラクトンは,その後の研究において再度単離することができず,またケーグルの試料の再調査によって,これらオーキシンが実在しなかったと結論された。…

※「インドール-3-酢酸」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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