STUDIES ON COMPONENTS OF RESPIRATORY SYSTEM OF BEGONIA LEAVES
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概要
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Investigations were made of the properties of diaphorase, cytochrome c reductases, cytochrome c oxidase, and other components of electron transfer system in various fractions of leaf homogenate of Begonia semperflorens. 1. All the fractions tested showed the existence of cytochrome c oxidase, succinic- and reduced diphosphopyridine nucleotide-cytochrome c reductases, and diaphorase. Activities of these enzymes were found to be associated mainly with the particulate fractions. The particulate fractions showed, in particular, a capacity of reducing oxidized cytochrome c with fumarate, malate, α-ketoglutarate. β-hydroxybutyrate, and citrate. 2. Optimum pH for oxidation of cytochrome c by the particulate fractions was found to be 5.5, while that for reduction was 7.2. 3. The activity of cytochrome c reductase was partially suppressed by malonate. Partial inhibition of cytochrome c oxidase was caused by azide and cyanide, the inhibitory effects observed being stronger with particulate fractions than with soluble fractions
- 日本植物生理学会の論文
著者
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Sasaki Kimiko
Department of Botany, Faculty of Science, Hokkaido University
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Sasaki Kimiko
Department Of Botany Faculty Of Science Hokkaido University
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Sasaki Kimiko
Departnent Of Botany Faculty Of Science Hokkaido University
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Sasaki K.
Department Of Quantum Science And Energy Engineering Tohoku University
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