瘦果
生物
长寿
第一代
拉伤
生成时间
直翅目
第三代
毒理
动物科学
动物
板球
遗传学
人口
解剖
医学
电信
环境卫生
计算机科学
作者
Maria Augustyniak,Amrendra K. Ajay,Andrzej Kędziorski,Monika Tarnawska,Magdalena Rost‐Roszkowska,Barbara Flasz,Agnieszka Babczyńska,B. Mazur,Katarzyna Rozpędek,Reyhaneh Seyed Alian,Magdalena Skowronek,Ewa Świerczek,Klaudia Wiśniewska,Patrycja Ziętara
出处
期刊:Chemosphere
[Elsevier]
日期:2024-02-01
卷期号:349: 140809-140809
被引量:2
标识
DOI:10.1016/j.chemosphere.2023.140809
摘要
The long-term exposure effects of nanodiamonds (NDs), spanning an organism's entire lifespan and continuing for subsequent generation, remain understudied. Most research has focused on evaluating their biological impacts on cell lines and selected organisms, typically over short exposure durations lasting hours or days. The study aimed to assess growth, mortality, and digestive functions in wild (H) and long-lived (D) strains of Acheta domesticus (Insecta: Orthoptera) after two-generational exposure to NDs in concentrations of 0.2 or 2 mg kg−1 of food, followed by their elimination in the third generation. NDs induced subtle stimulating effect that depended on the strain and generation. In the first generation, more such responses occurred in the H than in the D strain. In the first generation of H strain insects, contact with NDs increased survival, stimulated the growth of young larvae, and the activity of most digestive enzymes in mature adults. The same doses and exposure time did not cause similar effects in the D strain. In the first generation of D strain insects, survival and growth were unaffected by NDs, whereas, in the second generation, significant stimulation of those parameters was visible. Selection towards longevity appears to support higher resistance of the insects to exposure to additional stressor, at least in the first generation. The cessation of ND exposure in the third generation caused potentially harmful changes, which included, e.g., decreased survival probability in H strain insects, slowed growth of both strains, as well as changes in heterochromatin density and distribution in nuclei of the gut cells in both strains. Such a reaction may suggest the involvement of epigenetic inheritance mechanisms, which may become inadequate after the stress factor is removed.
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