Leptohormone

Japanese: leptohormone
Leptohormone

… In 1892, J. Wiesner hypothesized the existence of such a hormone in plants, but experimental evidence was provided by G. Haberlandt and others after 1921. They said that there are two types of substances that induce cell division at the wounded site: one that comes from the wounded cell itself (wound hormone) and one that comes from the vascular bundle (leptohormone). In 1927, B. Wehnelt, a student of Haberlandt, discovered a biological method to quantify this hormone by removing seeds from immature kidney bean pods and applying a sample liquid to the inside of the pod, which causes the pod to rise. Since then, research into isolating and identifying the substance has progressed rapidly. …

*Some of the terminology that mentions "leptohormone" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

… 植物では1892年にウィーズナーJ.Wiesnerがこのようなホルモンがあることを想定したが,実験的な証拠を示したのは1921年以降のハーバーラントG.Haberlandtらによる研究である。彼らは,傷ついた部位に細胞分裂を引き起こす物質は2種類あり,傷ついた細胞自身からくるもの(傷ホルモン)と維管束からくるもの(レプトホルモンleptohormone)とがあるという。 1927年にハーバーラントの弟子ウェーネルトB.Wehneltが,インゲンマメの未熟な果実の莢(さや)から種子を取り去り,莢の内側に試料液を塗るとそこが盛り上がってくる反応で,このホルモンを生物学的に定量する方法をみつけて以来,物質を分離,同定する研究が急速に進んだ。…

※「leptohormone」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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