A Study of the Effects of MSG and Saccharose on the Emergence Rates of Drosophila virilis

Monosodium Glutamate(MSG) 와 Saccharose가 먹초파리(Drosophila virilis)의 羽化率에 미치는 影響에 대한 硏究

The present investigation was attempted to see if MSG(monosodium glutamate) and saccharose, widely used for food additivies, affect the emergence rates of Drosophila virilis. For the present experiments, the four strains(Sinchon-I, Sinchon-II, Choongju, Jeju) were used and MSG and saccharose media were prepared by adding various concentrations of MSG and saccharose to the standard medium. The results obtained were as follows. 1) The significant difference in the emergence rates of Drosophila virilis was found with the concentrations of MSG and saccharose; the emergence rates were decreased as the concentrations of MSG and saccharose were increased. 2) The effects of MSG and saccharose on the emergence rates were not significantly different among the four strains of Drosophila virilis. 3) The effect of MSG on the emergence rates was found to be greater than that of saccharose.

먹초파리(Drosophila virilis) 羽化에 미치는 MSG와 saccharose의 影響을 調査하기 위하여 4가지 系統(Sinchon_1, Sinchon-II, Choongju, Jegu)의 먹초파리 MSG와 saccharose의 7가지 濃度(0.0M, 0.1M, 0.3M, 0.5M, 0.7M, 1.0M, 1.2M)을 各各 標準飼料에 添加하여 여기에서 羽化하며 나온 個體數를 比較 檢討하였든 바 結果는 다음과 같다. 1. 먹초파리의 羽化率은 MSG와 saccharose의 濃度間에 有意的인 差異를 보이며 濃度가 增加함에 따라 迂闊率이 低下하였다. 2. MSG와 saccharose에 對한 먹초파리의 羽化率에 미치는 影響은 먹초파리의 4個 系統間에는 有意的인 差異가 없다. 3. MSG가 saccharose보다는 먹초파리의 羽化에 對해 抑制的 　果가 더 큰 傾向을 보이고 있는 것으로 推理된다.