ウバメガシ(Quercus phillyraeoides A.Gray)に含まれる植物生長阻害活性物質と他感作用
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概要
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[Synopsis] A kind of suppression of the plant growth is observed under a Quercus phillyraeoides., The experiment shown at the following on order to clarify the mechanism of this phenomenon was carried out. The water extract from bark of Quercus phillyraeoides was evaluated with plant growth inhibitory test against lettuce and turf grass seedlings. The active substance which remarkably suppressed the growth of the radicle of the turf grass from active fraction of the extract was isolated. But, it was not influence for radicle elongation of lettuce. It was the catechin in which isolated active ingredient was one of the representative tannin.
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