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Biosynthesis and biological activity of β-(5-methylisoxazolin-3-on-2-yl)alanine in higher plants |
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| Authors: | Isamu Murakoshi Fumio Ikegami Tadahiro Nishimura Kazuo Tomita |
| Institution: | 1. Agricultural Chemicals Research Laboratories, Sankyo Co., Ltd., Hiromachi 1-2-58, Shinagawa-ku, Tokyo 140, Japan |
| Abstract: | Enzyme preparations from Leucaena seedlings catalysed the formation of β-(5-methylisoxazolin-3-on-2-yl)alanine (MIA) by using 3-hydroxy-5-methylisoxazole (HMI) and O-acetyl-L-serine. Some properties of this enzyme are described. The β-substituted alanine synthases from Pisum and Citrullus seedlings could not catalyse the synthesis of MIA. The phytotoxic effect of HMI on rice seedlings is reduced by alanylation. |
| Keywords: | Biosynthesis β-substituted alanine β-(5-methylisoxazolin-3-on-2-yl)alanine 3-hydroxy-5-methylisoxazole Tachigaren hymexazol higher plants |
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