光,温度がミシマサイコ(Bupleurum falcatum)種子の発芽率,胚の分化及び発芽過程中のsaikosaponin類の消長に及ぼす影響について

概要

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The effects of light and temperature (15, 25 and 35℃) conditions on the germination rate and the development of embryo of Bupleurum falcatum were studied. Their effects on the contents of saikosaponins a, c and d (sa, sc and sd) in the seeds. The highest germination rate was observed at 15℃. At 25℃, emergence of the radicle root at the stage of complete embryo was inhibited and the germination rate was very low. At 35℃, the embryo developed only until the tcrpedo stage, and the germination rate was nil. During germination the sd content in seeds increased rapidly from original 0.09% to 0.6-0.9% on the 4th day, and then decreased to original level on the 8th day. The sd content decreased as the sc content increased and increased as the .sc content decreased. The sa was not detected during germinating. Under the light condition, the sc and sd contents in the seeds were apparently not significantly affected by temperature. However, under the dark condition, the sd content on the 2nd to 4th day tended to decrease when incubated at higher temperature.
日本生薬学会の論文
1997-02-20