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

Autor: Pithan JB; North Dakota State University, United States., Rinehart JP; USDA-ARS, United States., Greenlee KJ; North Dakota State University, United States. Electronic address: kendra.greenlee@ndsu.edu., López-Martínez G; North Dakota State University, United States.
Jazyk: angličtina
Zdroj: Journal of insect physiology [J Insect Physiol] 2024 Sep; Vol. 157, pp. 104666. Date of Electronic Publication: 2024 Jul 03.
DOI: 10.1016/j.jinsphys.2024.104666
Abstrakt: 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.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Kendra Greenlee reports financial support was provided by USDA Agricultural Research Service. Kendra Greenlee reports financial support was provided by National Science Foundation. Giancarlo Lopez-Martinez reports financial support was provided by National Science Foundation. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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