scholarly journals Sex differences in the effects of Auricularia auricula-judae ethanolic extracts on the life span of Drosophila melanogaster during stress and non-stress conditions

2018 ◽  
Vol 8 (11) ◽  
pp. 87-94
Keyword(s):  
Sex Differences ◽  
Drosophila Melanogaster ◽  
Life Span ◽  
Stress Conditions ◽  
Auricularia Auricula ◽  
Ethanolic Extracts

scholarly journals The influence of virginity and induced sterility on Drosophila melanogaster females and males life span

2007 ◽  
Vol 5 (3) ◽  
pp. 15-20
Author(s):  
Mikhail V Shaposhnikov ◽  
Aleksey A Moskalev ◽  
Elena V Turysheva
Keyword(s):  
Sex Differences ◽  
Drosophila Melanogaster ◽  
Life Span ◽  
Costs Of Reproduction ◽  
Mating Cost ◽  
Molecular Signals

Reproduction and life span are negatively interrelated in both sexes, however sex differences in costs of reproduction are poorly understood. It was shown that mating cost has a main contribution to costs of reproduction in both sexes. molecular signals from gonads exceed cost of gametes production.

Zingiber officinale extends Drosophila melanogaster life span in xenobiotic-induced oxidative stress conditions

2018 ◽  
Vol 13 (2) ◽  
pp. 130-136
Author(s):  
Volodymyr Padalko ◽  
Viktoriya Dzyuba ◽  
Olena Kozlova ◽  
Hanna Sheremet ◽  
Olena Protsenko
Keyword(s):  
Oxidative Stress ◽  
Drosophila Melanogaster ◽  
Life Span ◽  
Zingiber Officinale ◽  
Stress Conditions

Quantitative Untersuchungen über die Ommochromvorstufen in den Malpighischen Gefäßen verschiedener Drosophila-Mutanten

1968 ◽  
Vol 23 (4) ◽  
pp. 547-554 ◽  
Author(s):  
Dieter Eichelberg
Keyword(s):  
Sex Differences ◽  
Drosophila Melanogaster ◽  
Quantitative Determination ◽  
Paper Chromatography ◽  
Type A ◽  
Individual Development ◽  
Wild Type ◽  
Strong Reduction ◽  
The Individual

This paper concerns with the quantitative determination of ommochrome precursors in the Malpighian tubes of Drosophila melanogaster during the individual development. After separation by paper chromatography the amounts of tryptophane, kynurenine and 3-hydroxykynurenine have been estimated by a spectrophotometer. The concentrations of these three substances obtained from wild-type Malpighian tubes have been compared with the quantities of the mutants brown (bw) and red Malpighian tubes (red). During development there are significant variabilities in contents of tryptophane, kynurenine and 3-hydroxykynurenine in the Malpighian tubes. In the larval tubes large quantities of ommochrome precursors are accumulated. With the beginning of metamorphosis there is a distinct decrease in these substances. After hatching the amount increases steadily until reaching a constant level. In the Malpighian tubes there are also sex differences: in females the concentration of kynurenine and 3-hydroxykynurenine is higher than in males. The results obtained from the mutants brown and red Malpighian tubes are on principle the same as those obtained from wild-type. A strong reduction of kynurenine contents is found in the mutant red Malpighian tubes. Perhaps in this mutant the kynurenine-hydroxilase-activity is lower than in wild-type. The amounts of ommochrome precursors, accumulated in the larval Malpighian tubes, do not correspond in all cases to the contents of xanthommatine formed in the eyes of the adults.

scholarly journals Neuronal Expression of p53 Dominant-Negative Proteins in Adult Drosophila melanogaster Extends Life Span

2005 ◽  
Vol 15 (22) ◽  
pp. 2063-2068 ◽  
Author(s):  
Johannes H. Bauer ◽  
Peter C. Poon ◽  
Heather Glatt-Deeley ◽  
John M. Abrams ◽  
Stephen L. Helfand
Keyword(s):  
Drosophila Melanogaster ◽  
Life Span ◽  
Dominant Negative ◽  
Neuronal Expression ◽  
Adult Drosophila
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