A holidic medium for Drosophila melanogaster.

A holidic medium for Drosophila melanogaster.
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DOI:
10.1038/nmeth.2731
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发表时间:
2014-01
期刊:
影响因子:
48
通讯作者:
Partridge, Linda
Partridge, Linda
中科院分区:
生物学1区
文献类型:
--
作者:
Piper, Matthew D. W.;Blanc, Eric;Leitao-Goncalves, Ricardo;Yang, Mingyao;He, Xiaoli;Linford, Nancy J.;Hoddinott, Matthew P.;Hopfen, Corinna;Soultoukis, George A.;Niemeyer, Christine;Kerr, Fiona;Pletcher, Scott D.;Ribeiro, Carlos;Partridge, Linda

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使用模式生物进行研究的一个关键要求是适当、明确和一致的饮食。目前还没有完全的化学定义的(holecystic)饮食可用于果蝇。我们描述了一个holcidic介质,是平等的性能,为成人繁殖力和寿命优化的寡聚饮食。它也足以支持几代人的发展,但速度较慢。在七年的实验中,对于成年人的健康特征,holcycle饮食比oligidic食物产生了更一致的实验结果。此外,营养素和药物更容易获得的苍蝇在holmium介质,类似于饮食限制寡聚食物,氨基酸稀释增加苍蝇寿命。我们还报告了氨基酸对食物选择行为的特定影响,以及来自微生物群的叶酸足以促进发育。这些见解无法通过寡配饮食或多配饮食获得。
A critical requirement for research using model organisms is an appropriate, well-defined and consistent diet. There is currently no complete chemically defined (holidic) diet available for Drosophila melanogaster. We describe a holidic medium that is equal in performance to an oligidic diet optimized for adult fecundity and lifespan. It is also sufficient to support development over multiple generations, but at a reduced rate. During seven years of experiments, the holidic diet yielded more consistent experimental outcomes than oligidic food for adult fitness traits. Furthermore, nutrients and drugs are more accessible to flies in holidic medium and, similar to dietary restriction on oligidic food, amino acid dilution increases fly lifespan. We also report amino acid specific effects on food choice behavior and that folic acid from the microbiota is sufficient for development. These insights could not be gained using oligidic or meridic diets.
卡路里不能通过果蝇饮食限制来解释寿命的延长。
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