年龄对传粉昆虫 Megachile rotundata 的氧化应激和运动的影响

IF 2.3 2区 农林科学 Q1 ENTOMOLOGY
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引用次数: 0

摘要

尽管进行了大量衰老研究,但氧化应激、衰老和运动等功能下降之间的关系仍存在争议。昆虫为分析氧化应激和衰老之间的关系提供了一个很有前景的模型,因为昆虫的寿命表现出巨大的差异,这些差异可能会受到环境、社会因素、活动水平和衰老干预措施的影响。在本研究中,我们利用传粉昆虫 Megachile rotundata(一种在成虫阶段非常活跃的物种)来探讨衰老对氧化应激和运动的影响。我们评估了Megachile rotundata在整个成年期的行走、飞行、氧化损伤和抗氧化防御能力的变化。我们的研究结果表明,轮虫的飞行能力会随着年龄的增长而下降,但步行能力不会。此外,我们还发现,氧化损伤和抗氧化能力最初会随着年龄和体力活动而增加,但随后会保持在一定水平。总之,这些数据表明,轮虫和其他一些生物一样,可能并不完全遵循自由基衰老理论。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Effects of age on oxidative stress and locomotion in the pollinator, Megachile rotundata

Effects of age on oxidative stress and locomotion in the pollinator, Megachile rotundata

Despite numerous aging studies, the relationship between oxidative stress, aging, and decline in functions such as locomotion is still debated. Insects offer a promising model for analyzing the relationship between oxidative stress and aging, because they exhibit vast differences in lifespan that may be affected by the environment, social factors, levels of activity, and aging interventions. In this study, we explore the effects of aging on oxidative stress and locomotion using the pollinator, Megachile rotundata, a species that is very mobile and active in the adult stage. Across the adult lifespan of M. rotundata, we assessed changes in walking, flight, oxidative damage, and antioxidant defenses. Our results suggest that M. rotundata experience age-related declines in flight, but not walking. Additionally, we found that oxidative damage and antioxidant capacity initially increase with age and physical activity, but then levels are maintained. Overall, these data show that M. rotundata, like some other organisms, may not perfectly follow the free radical theory of aging.

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来源期刊
Journal of insect physiology
Journal of insect physiology 生物-昆虫学
CiteScore
4.50
自引率
4.50%
发文量
77
审稿时长
57 days
期刊介绍: All aspects of insect physiology are published in this journal which will also accept papers on the physiology of other arthropods, if the referees consider the work to be of general interest. The coverage includes endocrinology (in relation to moulting, reproduction and metabolism), pheromones, neurobiology (cellular, integrative and developmental), physiological pharmacology, nutrition (food selection, digestion and absorption), homeostasis, excretion, reproduction and behaviour. Papers covering functional genomics and molecular approaches to physiological problems will also be included. Communications on structure and applied entomology can be published if the subject matter has an explicit bearing on the physiology of arthropods. Review articles and novel method papers are also welcomed.
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