蚕蛹におけるシヨウジヨウバエのBarの小眼數を増加させる物質について

概要

論文の詳細を見る
Extracts of silkworm pupae were prepared to test their effect in increasing the facet numbers of the Bar-eye of Drosophila melanogaster. Larvae of Bar were raised on agar-molasses media (agar 2%, molasses 17% and yeast 1.5% in water) until 50th hour after hatching, then transferred to agar-molasses media containing extracts in different concentrations until the emergence of the imagines. Throughout these experiments the temperature was maintaned at 25℃. Active extracts of silkworm pupae were treated with 80% alcohol and the extract was dried up in vacuum. This was treated with ether insoluble substances were fractionated in 3 parts by Al_2O_3-column chromatography. The facet-increasing substances were absorbed in the upper part. Thus the effective substances disclosed by present experiment were soluble in water, acetone, 95% alcohol or acetic ether, but insoluble in ether and resistant to heat and acid. Facet-increasing effects of these extracts were nearly the same as that of amino acids or their derivatives such as arginine, citrullin, creatine, histidine, glycocyamine and sarcosine which has been investigated in a previous occasion (M. Ogaki, S. Kaji and E. Tanaka '53).
社団法人日本動物学会の論文
1955-03-15