カキ幼果中のジベレリン様物質〔英文〕

概要

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The activity of fractionated gibberellin (GA)-like substances extracted from the seed, pericarp and calyx tissues of Kaki‘Fuyu’(Japanese persimmon) collected 20 days after full bloom was determined, and the main active component in calyx tissue was characterized by means of selected bioassays and thin-layer chromatography.The highest activity was detected in the acidic ethyl acetate fraction of seed, whereas the lower was found in almost equal amounts in the same fractions of pericarp and calyx. In each fraction, the activity occurred at the Rf zones of GA1 and/or GA3 on paper chromatograms.The purified active component(s) of calyx exhibited biological responses similar to GA1 and/or GA3 in dwarf pea and cucumber assays. However, the component(s) re-purified by a partition column technique corresponded closely in Rf with GA3 rather than GA1 on thin-layer chromatograms. The main active component in calyx therefore seems to be identical with GA3.
園藝學會の論文