L-Tyrosine carboxy-lyase of barley roots
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概要
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L-Tyrosine carboxy-lyase (E.C. 4. 1. 1. 25) was isolated from roots of germinating barley (Hordeum vulgare). The enzyme requires pyridoxal phosphate for maximum activity. The optimum pH for activity is about 7.0. The enzyme is inhibited by p-chloromercuribenzoate and hydroxylamine at 10^<-3>M. Enzyme activity is found in extracts from young roots, especially from those in early stages of development, but not in extracts from shoots of the same plant. Localization and changes in the amounts of L-tyrosine carboxy-lyase and aromatic amines in developing barley seedlings were measured. Participation of carboxy-lyase in the formation of aromatic amines in barley roots is suggested.
- 日本植物生理学会の論文
著者
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Yoshida Seiichi
Department Of Hygiene Chemistry Faculty Of Pharmaceutical Sciences Science University Of Tokyo
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Hasegawa Masao
Department Of Biology Faculty Of Science Tokyo Metropolitan University
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Hosoi Kazuo
Department Of Biology Faculty Of Science Tokyo Metropolitan University
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Hosoi Kazuo
Department Of Biology Tokyo Metropolitan University
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Yoshida Seiichi
Deparhllent Of Biology Tokyo Metropolitan University
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