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DOI | 10.1126/science.aah4634 |
Hawkmoths use nectar sugar to reduce oxidative damage from flight | |
Levin, E.1; Lopez-Martinez, G.2; Fane, B.3,4; Davidowitz, G.1 | |
2017-02-17 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 355期号:6326页码:733-734 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Nectar-feeding animals have among the highest recorded metabolic rates. High aerobic performance is linked to oxidative damage in muscles. Antioxidants in nectar are scarce to nonexistent. We propose that nectarivores use nectar sugar to mitigate the oxidative damage caused by the muscular demands of flight. We found that sugar-fed moths had lower oxidative damage to their flight muscle membranes than unfed moths. Using respirometry coupled with delta C-13 analyses, we showed that moths generate antioxidant potential by shunting nectar glucose to the pentose phosphate pathway (PPP), resulting in a reduction in oxidative damage to the flight muscles. We suggest that nectar feeding, the use of PPP, and intense exercise are causally linked and have allowed the evolution of powerful fliers that feed on nectar. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000395117700039 |
WOS关键词 | MANDUCA-SEXTA ; HOVERING FLIGHT ; FEEDING BATS ; METABOLISM ; FUEL ; CARBOHYDRATE ; HUMMINGBIRDS ; CONSUMPTION ; STRESS ; MOTHS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/195463 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Arizona, Dept Entomol, Tucson, AZ 85721 USA; 2.New Mexico State Univ, Dept Biol, Las Cruces, NM 88003 USA; 3.Univ Arizona, Sch Plant Sci, Tucson, AZ USA; 4.Univ Arizona, Inst BIO5, Tucson, AZ USA |
推荐引用方式 GB/T 7714 | Levin, E.,Lopez-Martinez, G.,Fane, B.,et al. Hawkmoths use nectar sugar to reduce oxidative damage from flight[J]. SCIENCE,2017,355(6326):733-734. |
APA | Levin, E.,Lopez-Martinez, G.,Fane, B.,&Davidowitz, G..(2017).Hawkmoths use nectar sugar to reduce oxidative damage from flight.SCIENCE,355(6326),733-734. |
MLA | Levin, E.,et al."Hawkmoths use nectar sugar to reduce oxidative damage from flight".SCIENCE 355.6326(2017):733-734. |
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