蛹虫草对紫外诱导果蝇氧化损伤的保护作用

doi:10.7506/spkx1002-6630-201521048

食品科学

蛹虫草对紫外诱导果蝇氧化损伤的保护作用

黄雅琴1,2，李尽哲1,*，段鸿斌1，殷东林1

1.信阳农林学院生物与制药工程学院，河南信阳 464000；
2.郑州大学河南省离子束生物工程重点实验室，河南郑州 450052

出版日期:2015-11-15 发布日期:2015-12-03

Protective Effect of Cordyceps militaris on UV-Induced Oxidative Damage in Drosophila melanogaster

HUANG Yaqin1,2, LI Jinzhe1,*, DUAN Hongbin1, YIN Donglin1

1. College of Biological and Pharmaceutical Engineering, Xinyang College of Agriculture and Forestry, Xinyang 464000, China;
2. Henan Provincial Key Laboratory of Ion Beam Bio-engineering, Zhengzhou University, Zhengzhou 450052, China

Online:2015-11-15 Published:2015-12-03

摘要/Abstract

摘要：

为了探讨蛹虫草对紫外辐射所致氧化损伤果蝇的保护作用，以不同质量分数的蛹虫草培养基饲养经不同时间紫外辐射的果蝇，观察统计其体内的超氧化物歧化酶（superoxide dismutase，SOD）活性和丙二醛（malondialdehyde，MDA）含量。结果表明：蛹虫草粉质量分数为0.4%的培养基能极显著提高紫外辐射20 min雄果蝇的SOD活性（13.09%，P＝0.005 9＜0.01）并极显著降低MDA含量（17.11%，P＝0.003 2＜0.01）；蛹虫草粉质量分数为0.2%的培养基能极显著提高紫外辐射40 min雄果蝇的SOD活性（8.99%，P＝0.006 6＜0.01）并极显著降低MDA含量（9.06%，P＝0.006 1＜0.01）；蛹虫草对雄性果蝇的抗氧化保护作用优于对雌性的。由此可见，适宜质量分数的蛹虫草粉能够修复紫外辐射对果蝇造成的损伤，对机体起到抗氧化保护作用。

关键词: 蛹虫草, 紫外辐射, 果蝇, 超氧化物歧化酶, 丙二醛

Abstract:

In order to study the protective effect of Cordyceps militaris against ultraviolet radiation-induced oxidative
damage in Drosophila melanogaster, fruit flies were radiated by UV and fed with Cordyceps militaris-supplemented medium
at different concentrations. We found that 0.4% Cordyceps militaris powder added to the medium could significantly
increase SOD activity (by up to 13.09%, P = 0.005 9) and decrease MDA content (by up to 17.11%, P = 0.003 2) in male
fruit flies irradiated by UV for 20 min and that the same effects were obtained for fruit flies with 40 min UV radiation, when
0.2% Cordyceps militaris powder added to the medium, showing an 8.99% in increase SOD activity (P = 0.006 6) and a
9.06% decrease in MDA content (P = 0.006 1). The antioxidant protection of Cordyceps militaris on male fruit flies was
better than on the female ones. Thus, the appropriate concentration of Cordyceps militaris powder was able to repair UV
irradiation-induced oxidative damage and played an anti-UV radiation role in fruit flies.

Key words: Cordyceps militaris, ultraviolet radiation, Drosophila melanogaster, superoxide dismutase, malondialdehyde

中图分类号:

S646.9

黄雅琴，李尽哲，段鸿斌，殷东林. 蛹虫草对紫外诱导果蝇氧化损伤的保护作用[J]. 食品科学, doi: 10.7506/spkx1002-6630-201521048.

HUANG Yaqin, LI Jinzhe, DUAN Hongbin, YIN Donglin. Protective Effect of Cordyceps militaris on UV-Induced Oxidative Damage in Drosophila melanogaster[J]. FOOD SCIENCE, doi: 10.7506/spkx1002-6630-201521048.

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蛹虫草对紫外诱导果蝇氧化损伤的保护作用

Protective Effect of Cordyceps militaris on UV-Induced Oxidative Damage in Drosophila melanogaster

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