摘要
目的探讨味精对果蝇子代生存繁育能力的影响。方法添加15、30、45g/L浓度的L、H、T品牌的味精培养野生型黑腹果蝇(Drosophila melanogaster),以无味精添加组作为对照,每瓶3对,各3个重复。观察统计F1、F2成蝇出现的时间(发育期)及7d内羽化的成虫数量(发生量)和30d内死亡数。结果与对照组比较,添加T牌味精15g/L后F1果蝇发生量增加,差异有统计学意义(P<0.05),同时发育期缩短(P>0.05)。随着味精浓度升高,发生量逐渐减少,与15g/L味精添加组相比,添加T牌味精45g/L和L牌味精30、45g/L后F1果蝇发生量下降,差异有统计学意义(P<0.05或P<0.01);且发育期延迟(P>0.05)。30d内成蝇存活率下降,30和45g/L味精添加组与对照组相比,差异均有统计学意义(P<0.05或P<0.01)。F2果蝇发生量随味精浓度的增加呈现先增加后降低的变化,15、30g/L味精添加组均高于对照组(P<0.05或P<0.01)。结论在本研究的剂量条件下,低剂量味精有利于果蝇的生存和繁育,高剂量则产生不利效应。
Objective To study the effects of monosodium glutamate on viability and fertility of filial generation Drosophila. Methods Different concentrations （ 15,30,45 g/L ） of L, H, T monosodium glutamate （MSG） were added in the medium for wild- type Drosophila melanogaster, and the non-MSG medium was taken as the control group, 3 pairs of Drosophilas in each bottle and 3 repeats in each group, the first and second filial generation adult Drosophila＇s eclosion time （growth period） and the number of offspring within 7 days （reproduction quantity） , and the death count in 30 days of 20 Drosophilas were observed and recorded. Results Compared with the control group, the reproduction quantity of Drosophila significantly increased, the growth period shortened in the first filial generation in 15 g/L of T MSG group. As the MSG concentrations increased,the reproduction quantity reduced significantly, the survival rate of Drosophila in 30 days declined significantly. The reproduction quantity in second filial generation increased at the initial stage of exposure and then decreased as the MSG concentrations increased. Conclusion The results of the present paper indicates that low-dose of MSG may be the advantage for survival and reproduction of Drosophila, but high doses will produce adverse effects.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2010年第4期320-322,共3页
Journal of Environment and Health
基金
廊坊师范学院自然科学资助项目(LSAY200705)
关键词
果蝇
谷氨酸盐
生存能力
繁殖能力
Drosophila
Monosodium glutamate
Viability
Fertility
