Comparing the effects of five naturally occurring monosaccharide and oligosaccharide sugars on longevity and carbohydrate nutrient levels of a parasitic phorid fly, Pseudacteon tricuspis
Comparing the effects of five naturally occurring monosaccharide and oligosaccharide sugars on longevity and carbohydrate nutrient levels of a parasitic phorid fly, Pseudacteon tricuspis
复制标题
DOI：
10.1111/j.1365-3032.2005.00484.x
复制
发表时间：
2006-03
影响因子：
1.5
通讯作者：
Li Chen;H. Fadamiro
中科院分区：
文献类型：
--
作者：
Li Chen;H. Fadamiro
抽象的。的寿命和营养水平的Pseudacteon tricuspis提供了1米的解决方案，五种天然存在的糖，果糖，葡萄糖，蔗糖，海藻糖和三聚蔗糖，进行了比较。与糖饥饿的果蝇（仅提供水的果蝇）相比，除三聚果糖外的所有其他物质均导致三尖棘单胞菌的寿命显著增加。饥饿的雌性和雄性三尖棘球绦虫的平均寿命分别为3.3天和4.1天。除了糖溶液之外，提供自由水对于雌性和雄性果蝇的最佳寿命是必要的。两种单糖（果糖和葡萄糖）使寿命延长2.4-2.6倍，二糖（蔗糖和海藻糖）使寿命延长2.6-2.8倍。提供三糖（三聚三糖）的果蝇寿命略有增加（约1天），但这与糖饥饿的果蝇寿命没有显著差异。与提供三聚果糖（三糖）的果蝇或糖饥饿的果蝇相比，在喂食二糖（蔗糖、海藻糖）或单糖（果糖、葡萄糖）的三尖拟单胞菌中检测到显著更高水平的总糖。在糖饥饿的果蝇或喂食葡萄糖或海藻糖的果蝇中未检测到果糖。然而，在喂食蔗糖或果糖的果蝇中检测到高水平的果糖，而喂食三聚果糖的果蝇中的果糖水平处于中间水平。一般而言，与三聚果糖喂养或糖饥饿的果蝇相比，在喂食蔗糖、葡萄糖、海藻糖或果糖的三尖拟单胞菌中检测到显著更高的糖原水平。在糖喂养的苍蝇中，总糖和糖原的水平与翅膀长度呈正相关，这可能表明较大的苍蝇积累了更高的储存糖。这些结果进行了讨论有关的营养生态的蚤蝇。
Abstract. The longevity and nutrient levels of Pseudacteon tricuspis provided with 1 m solutions of five naturally occurring sugars, fructose, glucose, sucrose, trehalose and melezitose, are compared. All but melezitose, result in significant increases in the longevity of P. tricuspis in comparison with sugar‐starved flies (flies provided with water only). Sugar‐starved female and male P. tricuspis have an average longevity of 3.3 and 4.1 days, respectively. Provision of free water in addition to sugar solution is necessary for optimum longevity by female and male flies. Longevity is increased by 2.4–2.6‐fold by the two monosaccharides, fructose and glucose, and by 2.6–2.8‐fold by the disaccharides, sucrose and trehalose. Phorid flies provided with the trisaccharide sugar, melezitose, had a marginal increase in lifespan (approximately 1 day), but this is not significantly different from the longevity of sugar‐starved flies. Significantly greater levels of total sugars are detected in P. tricuspis fed the disaccharide sugars (sucrose, trehalose) or the monosaccharide sugars (fructose, glucose), compared with flies provided with melezitose (trisaccharide), or to sugar‐starved flies. Fructose is not detected in sugar‐starved flies, or in flies fed glucose or trehalose. However, high levels of fructose are detected in flies fed sucrose or fructose, whereas levels of fructose in melezitose‐fed flies are intermediate. In general, significantly greater glycogen levels are detected in P. tricuspis fed sucrose, glucose, trehalose or fructose, compared with melezitose‐fed or sugar‐starved flies. Levels of total sugars and glycogen in sugar‐fed flies are positively correlated with wing length, possibly indicating a higher accumulation of storage sugars by larger flies. These results are discussed in relation to the nutritional ecology of the phorid fly.