Laboratory Animal and Comparative Medicine ›› 2019, Vol. 39 ›› Issue (2): 118-123.DOI: 10.3969/j.issn.1674-5817.2019.02.009

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Effects of Sugar Concentration Control on the Longevity and the Mid-gut Stem Cells of female Drosophila Melanogaster

TANG Run-dong1, SONG Si-yuan2, WU Wei3   

  1. 1. Shanghai Qibao High School, Shanghai 201100, China;
    2. Pudong Foreign Languages School, SISU, Shanghai 200120, China;
    3. Institute of Bichemistry and Cell Biology, CAS, Shanghai 200031, China
  • Received:2018-12-10 Online:2019-04-25 Published:2021-01-29

Abstract: Objective To assess the effects of sugar concentration control on the longevity and the mid-gut stem cells of female Drosophila Melanogaster and then to find a optimum eating habits for women. Methods Detect the variance of body weight, survival rate, longevity and mid-gut stem cell’s form with gradient sugar concentration treatment (the sugar concentration in normal medium as 100%). Results With the increase of the age, all the fly groups’ body weight raised slowly first and then rapidly after 21 days. Body weight in the high sugar concentration treatment group increased faster than that of low sugar concentration treatment group. With the experiments of gradient sugar concentration treatment after high sugar concentration treatment, the optimum sugar concentration is 50%. With the extended of the treat time, the survival rate increased rapidly after 14 days. All the groups’ survival rates were increasing with the gradient sugar concentration treatment after high sugar concentration treatment group. Drosphila in the 50% sugar concentration treatment group had the highest survival rate. With the sugar concentration control, all the fly groups’ average longevity raised and the optimum sugar concentration was 50%. With the extended of the treat time, all the groups’ mid-gut stem cell had large morphological changes. They had be rescued by the sugar concentration control and the optimum sugar concentration was 50%. Conclusion The sugar was a important nutrient for D.melanogaster. It had large effects on D. melanogaster’s body weight, longevity and mid-gut stem cell. The body weight decreased and the longevity increased with the diet control. And they could rescue the damage on mid-gut stem cell.

Key words: Drosophila Melanogaster, Body weight, Longevity, Mid-gut stem cells

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