Positive effect of porphyrans on the lifespan and vitality of Drosophila melanogaster

Positive effect of porphyrans on the lifespan and

vitality of Drosophila melanogaster

佚名

【期刊名称】《中国海洋湖沼学报（英文版）》 【年(卷),期】2007(025)004

【摘要】The effects of degraded porphyran (P1) and natural porphyran (P) on the lifespan and vitality of Drosophila melanogaster are studied. The porphyrans, added daily to the food medium at 0.2% and 1% concentrations, can significantly increase the lifespan in average of 55.79 and 58.23 d in 0.2% P1 diet females and 1% P1 diet_males, extending

by

12.29%

and

8.60%

over

the

corresponding

controls,respectively. The effects of porphyrans on D. melanogaster in heat-stress condition were also examined,and found a remarkable increase in survival time. The results which are consistently associated with the use of porphyrans are related to their free radical scavenger action. Considerable increase in vitality demonstrated that vitalities of middle-aged fly (assessed by measuring their mating capacity) was observed after porphyrans addition. Therefore, porphyrans are effective in reducing the rate of aging, and P1 in low molecular weight is better than natural P.

【总页数】5页(373-377)

【关键词】Drosophila melanogaster; porphyrans; lifespan; heat-stress;

mating capacity 【作者】佚名

【作者单位】Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071,China;Graduate School of the Chinese Academy of Sciences, Beijing 100039, China;Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071,China;Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071,China;Graduate School of the Chinese Academy of Sciences, Beijing 100039, China;Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071,China 【正文语种】中文 【中图分类】P3 【文献来源】

https://www.zhangqiaokeyan.com/academic-journal-cn_chinese-journal-oceanic-limnology-english-edition_thesis/0201252508145.html 【相关文献】

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