たばこ酸素の基礎的研究-1-
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概要
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This study was carried out in order to know the changes of the enzyme activities (amylase, invertase, catalase and peroxidase) of leaf tobacco at various growth-periods of tobacco plant (Bright Yellow). (1) After watching the changes of the enzyme activities of leaf, tobacco at various growth periods, we can say that the activities of amylase and peroxidase become higher gradually with growth, but they are lowered temporarily after the topping. The activity of invertase become higher gra-dually until about sixtieth day after transplanting, but then after the topping it becomes lower gradually with the growth. The activity of catalase decreases gradually with the growth. (2) The enzyme activity of sick leaf tobacco and that of insufficient nutrition and moisture become high temporarily. Especially the activity of amylase becomes high, so we can say that tobacco plant evidently consumes preserved nutrients. (3) As for changes of the enzyme activities of leaf tobacco within a day, we note that amylase and invertase become strongest at 10 a.m., catalase at 2 p.m., and peroxidase at 6 p.m.,
- 社団法人 日本農芸化学会の論文