薬用植物に含まれる昆虫生理活性物質の検索

概要

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To search for new biologically active substances to insects, powders from sixty four kinds of drug plants were individually mixed into artificial diets, on which fourth or fifth instar larvae of silkworm, Bombyx mori L. were reared, and their effects on the growth and metamorphosis of the insects were observed. The results obtained are as follows. 1) Phellondedri Cortex, Coptidis Rhizoma, Picrasma Lignum, Condurango Cortex and Akebiae Lignum inhibited the growth of larvae. Berberine was confirmed to be a causative agent in Phellondendri Cortex. 2) Areca Semen and Melia Cortex showed toxic effect, and arecoline was isolated as an active component from the former. 3) Caryophylli Flos and Myristica revealed growth inhibitory effect and sometimes induced cocoon spinning in fourth instar larvae. 4) Astragali Radix killed fifth instar larvae after their maturing. L-Canavanine was isolated as an active substance.
社団法人日本農芸化学会の論文