在亚马逊青Physalaemus ephippifer (Anura,Leptodactylidae) 的整体发生过程中,自然调节了氧化还原状态
João Pedro Pantoja Monteiro1,2,3, Carla Carolina Miranda Dos Santos1,4, João Paulo Moura de Queiroz1,2
1Laboratório de Pesquisas em Monitoramento Ambiental Marinho e Laboratório de Ecotoxicologia, Instituto de Ciências Biológicas, Universidade Federal do Pará (UFPA), Rua Augusto Corrêa 01, Belém, PA, 66075-110, Brazil.
Scientific reports
|September 4, 2024
概括
两幼在发育过程中表现出改变的氧化应激生物标志物. 在Physalaemus ephippifer头的变态高潮提高了脂质过氧化,影响了污染易感性.
科学领域:
- 生态毒理学 生态毒理学
- 发展生物学 发展生物学
- 生物化学 生物化学
背景情况:
- 两动物的发展涉及到影响污染物易感性的生理变化.
- 在生态毒理学研究中,氧化应激的原生变异经常被忽视.
- 了解这些变化对于准确的生物监测至关重要.
研究的目的:
- 为了研究氧化应激生物标志物在Physalaemus ephippifer的幼虫发育阶段的调制.
- 评估抗氧化能力,酶活性,脂质过氧化和基因表达的变化.
- 确定发育阶段如何影响的氧化状态.
主要方法:
- 分析总抗氧化能力 (ACAP),谷氨S转移酶 (GST) 活性和脂质过氧化 (LPO) 水平.
- 对 nrf2,gst,gsr 和 gclc 的基因表达量化.
- 在前变形,前变形和变形高潮阶段的比较.
主要成果:
- 氨酸S转移酶活性在前变形和前变形中比高潮期间更高.
- 脂质过氧化水平在变态高潮阶段显著升高.
- 在不同阶段的总抗氧化能力或基因表达中没有发现显著差异.
结论:
- 在P. ephippifer幼中,氧化状态在本体发生过程中发生显著变化,特别是在变形高潮期间.
- 发育阶段特定的氧化还原平衡变化可以影响对环境污染物的反应.
- 安幼虫生物监测研究必须考虑到本体遗传的生理差异.
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